From a7a78fbac8c9b3869511a9b35709d948849666fd Mon Sep 17 00:00:00 2001
From: rogerwang2008 <rogerwang2008@163.com>
Date: Sat, 5 Sep 2026 11:05:50 +0800
Subject: [PATCH] Update CMakeLists.txt

---
 .idea/editor.xml                              |   2 +-
 .idea/workspace.xml                           | 278 +++++++++++++++---
 CMakeLists.txt                                |  24 +-
 NOIP2003J_bigint.cpp                          | 104 +++++++
 pojcs101_M01088_ski.cpp => SHOI2002_ski.cpp   |   0
 ...88_ski_WRONG.cpp => SHOI2002_ski_WRONG.cpp |   0
 _others/qyz/gdbh.cpp                          |  43 +++
 _others/qyz/test.cpp                          |  18 ++
 dp/NOIP1996S_miner_dp.cpp                     |  84 ++++++
 dp/NOIP1996S_miner_dp_MWASTE.cpp              |  85 ++++++
 dp/SHOI2002_ski_dp.cpp                        | 110 +++++++
 .../NOIP2005J_herbs_dp_knapsack.cpp           |  52 ++++
 .../NOIP2005J_herbs_dp_knapsack_MWASTE.cpp    |  48 +++
 ...P2005J_herbs_dp_knapsack_MWASTE_BETTER.cpp |  57 ++++
 .../NOIP2005J_herbs_dp_knapsack_PINGPONG.cpp  |  54 ++++
 .../NOIP2006S_jinming_budget_dp_knapsack.cpp  |  86 ++++++
 pojcs101_T04117_split_int.cpp                 |  39 +++
 ...01_T12559_biggest_smallest_combination.cpp |  32 ++
 ...559_biggest_smallest_combination_WRONG.cpp |  66 +++++
 pojcs101_T27104_chicken_monitors.cpp          |  62 ++++
 pojcs101_T27373_biggest_combination_t2.cpp    |  59 ++++
 ...s101_T27373_biggest_combination_t2_TLE.cpp |  88 ++++++
 22 files changed, 1339 insertions(+), 52 deletions(-)
 create mode 100644 NOIP2003J_bigint.cpp
 rename pojcs101_M01088_ski.cpp => SHOI2002_ski.cpp (100%)
 rename pojcs101_M01088_ski_WRONG.cpp => SHOI2002_ski_WRONG.cpp (100%)
 create mode 100644 _others/qyz/gdbh.cpp
 create mode 100644 _others/qyz/test.cpp
 create mode 100644 dp/NOIP1996S_miner_dp.cpp
 create mode 100644 dp/NOIP1996S_miner_dp_MWASTE.cpp
 create mode 100644 dp/SHOI2002_ski_dp.cpp
 create mode 100644 dp/backpack_dp/NOIP2005J_herbs_dp_knapsack.cpp
 create mode 100644 dp/backpack_dp/NOIP2005J_herbs_dp_knapsack_MWASTE.cpp
 create mode 100644 dp/backpack_dp/NOIP2005J_herbs_dp_knapsack_MWASTE_BETTER.cpp
 create mode 100644 dp/backpack_dp/NOIP2005J_herbs_dp_knapsack_PINGPONG.cpp
 create mode 100644 dp/backpack_dp/NOIP2006S_jinming_budget_dp_knapsack.cpp
 create mode 100644 pojcs101_T04117_split_int.cpp
 create mode 100644 pojcs101_T12559_biggest_smallest_combination.cpp
 create mode 100644 pojcs101_T12559_biggest_smallest_combination_WRONG.cpp
 create mode 100644 pojcs101_T27104_chicken_monitors.cpp
 create mode 100644 pojcs101_T27373_biggest_combination_t2.cpp
 create mode 100644 pojcs101_T27373_biggest_combination_t2_TLE.cpp

diff --git a/.idea/editor.xml b/.idea/editor.xml
index 0fea8c4..f86872e 100644
--- a/.idea/editor.xml
+++ b/.idea/editor.xml
@@ -230,7 +230,7 @@
     <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUseElementsView/@EntryIndexedValue" value="SUGGESTION" type="string" />
     <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUseEraseAlgorithm/@EntryIndexedValue" value="SUGGESTION" type="string" />
     <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUseFamiliarTemplateSyntaxForGenericLambdas/@EntryIndexedValue" value="SUGGESTION" type="string" />
-    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUseInternalLinkage/@EntryIndexedValue" value="SUGGESTION" type="string" />
+    <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUseInternalLinkage/@EntryIndexedValue" value="DO_NOT_SHOW" type="string" />
     <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUseRangeAlgorithm/@EntryIndexedValue" value="SUGGESTION" type="string" />
     <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUseStdSize/@EntryIndexedValue" value="SUGGESTION" type="string" />
     <option name="/Default/CodeInspection/Highlighting/InspectionSeverities/=CppUseStructuredBinding/@EntryIndexedValue" value="HINT" type="string" />
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 7cf4251..1108cee 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -4,7 +4,7 @@
     <option name="autoReloadType" value="SELECTIVE" />
   </component>
   <component name="BackendCodeEditorMiscSettings">
-    <option name="/Default/Environment/Hierarchy/GeneratedFilesCacheKey/Timestamp/@EntryValue" value="8" type="long" />
+    <option name="/Default/Environment/Hierarchy/GeneratedFilesCacheKey/Timestamp/@EntryValue" value="3" type="long" />
     <option name="/Default/Housekeeping/FeatureSuggestion/FeatureSuggestionManager/DisabledSuggesters/=SwitchToGoToActionSuggester/@EntryIndexedValue" value="true" type="bool" />
     <option name="/Default/Housekeeping/LiveTemplatesHousekeeping/HotspotSessionHintIsShown/@EntryValue" value="true" type="bool" />
     <option name="/Default/Housekeeping/OptionsDialog/SelectedPageId/@EntryValue" value="CppFormatterOtherPage" type="string" />
@@ -21,54 +21,84 @@
   <component name="CMakeRunConfigurationManager">
     <generated>
       <config projectName="exercises" targetName="pojcs101_M02692_12_coins" />
-      <config projectName="exercises" targetName="pojcs101_M03532" />
-      <config projectName="exercises" targetName="pojcs101_M01321_chest_grid" />
+      <config projectName="exercises" targetName="pojcs101_T12559_biggest_smallest_combination" />
+      <config projectName="exercises" targetName="pojcs101_T12559_biggest_smallest_combination_WRONG" />
       <config projectName="exercises" targetName="pojcs101_E02883" />
       <config projectName="exercises" targetName="pojcs101_M02694_polish_notation_tree" />
       <config projectName="exercises" targetName="noip2012s_kings_game" />
-      <config projectName="exercises" targetName="CMakeCXXCompilerId" />
       <config projectName="exercises" targetName="pojcs101_M01017_6_boxes" />
-      <config projectName="exercises" targetName="pojcs101_M01002_memorable_number" />
-      <config projectName="exercises" targetName="pojcs101_M02524_ubiquitous_religions_dsu" />
-      <config projectName="exercises" targetName="pojcs101_M03247_palindromic_prime" />
-      <config projectName="exercises" targetName="pojcs101_E01218" />
-      <config projectName="exercises" targetName="exercises" />
+      <config projectName="exercises" targetName="dp__backpack_dp__NOIP2005J_herbs_dp_knapsack_MWASTE" />
+      <config projectName="exercises" targetName="dp__backpack_dp__NOIP2006S_jinming_budget_dp_knapsack" />
+      <config projectName="exercises" targetName="dp__backpack_dp__NOIP2005J_herbs_dp_knapsack_PINGPONG" />
+      <config projectName="exercises" targetName="_others__qyz__gdbh" />
       <config projectName="exercises" targetName="pojcs101_M03704_brackets" />
       <config projectName="exercises" targetName="luogu_ez_B3628" />
+      <config projectName="exercises" targetName="dp__TJOI2007_walk_segments_dp" />
       <config projectName="exercises" targetName="pojcs101_M03441_sum_zero" />
-      <config projectName="exercises" targetName="pojcs101_T01011_sticks_WRONG" />
       <config projectName="exercises" targetName="pojcs101_M01328_radar_greedy" />
-      <config projectName="exercises" targetName="pojcs101_M01852_ants_falling" />
       <config projectName="exercises" targetName="pojcs101_M02692_12_coins_WRONG" />
       <config projectName="exercises" targetName="pojcs101_M02746_josephus_problem_simulation" />
       <config projectName="exercises" targetName="pojcs101_M02039_snakey_encryption" />
-      <config projectName="exercises" targetName="pojcs101_M01088_ski_WRONG" />
-      <config projectName="exercises" targetName="lc_135_candy" />
+      <config projectName="exercises" targetName="dp__NOIP1996S_miner_dp_MWASTE" />
       <config projectName="exercises" targetName="pojcs101_T01011_sticks" />
       <config projectName="exercises" targetName="pojcs101_M02431_cows_gas_leak_WRONG" />
+      <config projectName="exercises" targetName="NOIP2003J_bigint" />
       <config projectName="exercises" targetName="pojcs101_M01922_ride_follower" />
       <config projectName="exercises" targetName="luogu_template_dsu_P3367" />
-      <config projectName="exercises" targetName="pojcs101_M01088_ski" />
       <config projectName="exercises" targetName="pojcs101_E01003" />
+      <config projectName="exercises" targetName="pojcs101_M03532" />
+      <config projectName="exercises" targetName="pojcs101_M01321_chest_grid" />
+      <config projectName="exercises" targetName="pojcs101_T04117_split_int" />
+      <config projectName="exercises" targetName="pojcs101_T27373_biggest_combination_t2_TLE" />
+      <config projectName="exercises" targetName="pojcs101_M01002_memorable_number" />
+      <config projectName="exercises" targetName="pojcs101_M02524_ubiquitous_religions_dsu" />
+      <config projectName="exercises" targetName="pojcs101_M03247_palindromic_prime" />
+      <config projectName="exercises" targetName="SHOI2002_ski" />
+      <config projectName="exercises" targetName="pojcs101_E01218" />
+      <config projectName="exercises" targetName="dp__NOIP1996S_miner_dp" />
+      <config projectName="exercises" targetName="exercises" />
+      <config projectName="exercises" targetName="dp__SHOI2002_ski_dp" />
+      <config projectName="exercises" targetName="pojcs101_T01011_sticks_WRONG" />
+      <config projectName="exercises" targetName="pojcs101_M01852_ants_falling" />
+      <config projectName="exercises" targetName="SHOI2002_ski_WRONG" />
+      <config projectName="exercises" targetName="pojcs101_T27104_chicken_monitors" />
+      <config projectName="exercises" targetName="dp__backpack_dp__NOIP2005J_herbs_dp_knapsack_MWASTE_BETTER" />
+      <config projectName="exercises" targetName="cmake-build-debug-gcc__CMakeFiles__4.3.1__CompilerIdCXX__CMakeCXXCompilerId" />
+      <config projectName="exercises" targetName="lc_135_candy" />
+      <config projectName="exercises" targetName="pojcs101_T27373_biggest_combination_t2" />
+      <config projectName="exercises" targetName="_others__qyz__test" />
       <config projectName="exercises" targetName="pojcs101_M01328_radar_greedy_WRONG" />
+      <config projectName="exercises" targetName="dp__backpack_dp__NOIP2005J_herbs_dp_knapsack" />
     </generated>
   </component>
   <component name="CMakeSettings" AUTO_RELOAD="true">
     <configurations />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="4491295e-723c-4e0b-b7b4-9be1cbde5db8" name="更改" comment="CMakeLists.txt">
-      <change afterPath="$PROJECT_DIR$/lc_135_candy.cpp" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/noi2001_food_chain_dsu.py" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/noip2012s_kings_game.cpp" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/pojcs101_M03441_sum_zero.cpp" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/pojcs101_M03532.cpp" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/pojcs101_M03704_brackets.cpp" afterDir="false" />
+    <list default="true" id="4491295e-723c-4e0b-b7b4-9be1cbde5db8" name="更改" comment="1">
+      <change afterPath="$PROJECT_DIR$/NOIP2003J_bigint.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/_others/qyz/gdbh.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/_others/qyz/test.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/dp/NOIP1996S_miner_dp.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/dp/NOIP1996S_miner_dp_MWASTE.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/dp/SHOI2002_ski_dp.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/dp/TJOI2007_walk_segments_dp.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/dp/backpack_dp/NOIP2005J_herbs_dp_knapsack.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/dp/backpack_dp/NOIP2005J_herbs_dp_knapsack_MWASTE.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/dp/backpack_dp/NOIP2005J_herbs_dp_knapsack_MWASTE_BETTER.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/dp/backpack_dp/NOIP2005J_herbs_dp_knapsack_PINGPONG.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/dp/backpack_dp/NOIP2006S_jinming_budget_dp_knapsack.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/pojcs101_T04117_split_int.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/pojcs101_T12559_biggest_smallest_combination.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/pojcs101_T12559_biggest_smallest_combination_WRONG.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/pojcs101_T27104_chicken_monitors.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/pojcs101_T27373_biggest_combination_t2.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/pojcs101_T27373_biggest_combination_t2_TLE.cpp" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/editor.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/editor.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/exercises.iml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/exercises.iml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/modules.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/modules.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/pojcs101_T01011_sticks.cpp" beforeDir="false" afterPath="$PROJECT_DIR$/pojcs101_T01011_sticks.cpp" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/CMakeLists.txt" beforeDir="false" afterPath="$PROJECT_DIR$/CMakeLists.txt" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/pojcs101_M01088_ski.cpp" beforeDir="false" afterPath="$PROJECT_DIR$/SHOI2002_ski.cpp" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/pojcs101_M01088_ski_WRONG.cpp" beforeDir="false" afterPath="$PROJECT_DIR$/SHOI2002_ski_WRONG.cpp" afterDir="false" />
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     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -100,6 +130,9 @@
     </option>
     <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
   </component>
+  <component name="HighlightingSettingsPerFile">
+    <setting file="mock:///dummy.cpp" root0="SKIP_HIGHLIGHTING" />
+  </component>
   <component name="MacroExpansionManager">
     <option name="directoryName" value="7Sv2hfws" />
   </component>
@@ -128,6 +161,7 @@
     "C/C++ 文件.luogu_UVA755.cpp.executor": "Run",
     "C/C++ 文件.luogu_ez_B3628.cpp.executor": "Run",
     "C/C++ 文件.luogu_model_dsu_P3367.cpp.executor": "Run",
+    "C/C++ 文件.noip2003j_bigint.cpp.executor": "Run",
     "C/C++ 文件.ojcs101_E01003.cpp.executor": "Run",
     "C/C++ 文件.ojcs101_E01218.cpp.executor": "Run",
     "C/C++ 文件.ojcs101_E02883.cpp.executor": "Run",
@@ -145,13 +179,25 @@
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     "C/C++ 文件.pojcs101_M03247_palindromic_prime.cpp.executor": "Run",
     "C/C++ 文件.pojcs101_M03441_sum_zero.cpp.executor": "Run",
+    "CMake 应用程序.NOIP2005J_herbs_dp_backpack.executor": "Run",
+    "CMake 应用程序.NOIP2005J_herbs_dp_backpack_MWASTE_BETTER.executor": "Run",
+    "CMake 应用程序.NOIP2006S_jinming_budget_dp_knapsack.executor": "Run",
+    "CMake 应用程序.SHOI2002_ski_dp.executor": "Run",
     "CMake 应用程序.exercises.executor": "Run",
+    "CMake 应用程序.gdbh.executor": "Run",
     "CMake 应用程序.lc_135_candy.executor": "Run",
+    "CMake 应用程序.luogu_P2196_miner_dp.executor": "Run",
+    "CMake 应用程序.noip2003j_bigint.executor": "Run",
     "CMake 应用程序.pojcs101_M02694_polish_notation_tree.executor": "Run",
     "CMake 应用程序.pojcs101_M03441_sum_zero.executor": "Run",
     "CMake 应用程序.pojcs101_M03532.executor": "Run",
     "CMake 应用程序.pojcs101_M03704_brackets.executor": "Run",
     "CMake 应用程序.pojcs101_T01011_sticks.executor": "Run",
+    "CMake 应用程序.pojcs101_T04117_split_int.executor": "Run",
+    "CMake 应用程序.pojcs101_T12559_biggest_smallest_combination.executor": "Run",
+    "CMake 应用程序.pojcs101_T27104_chicken_monitors.executor": "Run",
+    "CMake 应用程序.pojcs101_T27373_biggest_combination_t2.executor": "Run",
+    "CMake 应用程序.test.executor": "Run",
     "CMake 调试.exercises.executor": "Debug",
     "CidrDebugProfileConversion": "true",
     "ModuleVcsDetector.initialDetectionPerformed": "true",
@@ -170,20 +216,26 @@
     "codeWithMe.voiceChat.enabledByDefault": "false",
     "deletionFromPopupRequiresConfirmation": "false",
     "git-widget-placeholder": "main",
-    "last_opened_file_path": "/Users/roger/coding/exercises",
+    "last_opened_file_path": "/Users/roger/coding/exercises/dp/backpack_dp",
     "node.js.detected.package.jshint": "true",
     "node.js.selected.package.jshint": "",
     "nodejs_package_manager_path": "npm",
     "org.rust.first.attach.projects": "true",
-    "settings.editor.selected.configurable": "CPPToolchains"
+    "settings.editor.selected.configurable": "editor.preferences.completion.inline"
   }
 }]]></component>
   <component name="RecentsManager">
     <key name="CopyFile.RECENT_KEYS">
+      <recent name="$PROJECT_DIR$/dp/backpack_dp" />
       <recent name="$PROJECT_DIR$" />
     </key>
+    <key name="MoveFile.RECENT_KEYS">
+      <recent name="$PROJECT_DIR$/dp/backpack_dp" />
+      <recent name="$PROJECT_DIR$/_others" />
+      <recent name="$PROJECT_DIR$/dp" />
+    </key>
   </component>
-  <component name="RunManager" selected="CMake 应用程序.lc_135_candy">
+  <component name="RunManager" selected="CMake 应用程序.dp__TJOI2007_walk_segments_dp">
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@@ -209,7 +261,77 @@
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+    <configuration name="NOIP2003J_bigint" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="NOIP2003J_bigint" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="NOIP2003J_bigint">
+      <method v="2">
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="SHOI2002_ski" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="SHOI2002_ski" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="SHOI2002_ski">
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+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
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+    <configuration name="SHOI2002_ski_WRONG" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="SHOI2002_ski_WRONG" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="SHOI2002_ski_WRONG">
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+      <method v="2">
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+      </method>
+    </configuration>
+    <configuration name="dp__NOIP1996S_miner_dp" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="dp__NOIP1996S_miner_dp" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="dp__NOIP1996S_miner_dp">
+      <method v="2">
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="dp__NOIP1996S_miner_dp_MWASTE" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="dp__NOIP1996S_miner_dp_MWASTE" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="dp__NOIP1996S_miner_dp_MWASTE">
+      <method v="2">
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="dp__SHOI2002_ski_dp" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="dp__SHOI2002_ski_dp" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="dp__SHOI2002_ski_dp">
+      <method v="2">
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="dp__TJOI2007_walk_segments_dp" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="dp__TJOI2007_walk_segments_dp" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="dp__TJOI2007_walk_segments_dp">
+      <method v="2">
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="dp__backpack_dp__NOIP2005J_herbs_dp_knapsack" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="dp__backpack_dp__NOIP2005J_herbs_dp_knapsack" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="dp__backpack_dp__NOIP2005J_herbs_dp_knapsack">
+      <method v="2">
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="dp__backpack_dp__NOIP2005J_herbs_dp_knapsack_MWASTE" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="dp__backpack_dp__NOIP2005J_herbs_dp_knapsack_MWASTE" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="dp__backpack_dp__NOIP2005J_herbs_dp_knapsack_MWASTE">
+      <method v="2">
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="dp__backpack_dp__NOIP2005J_herbs_dp_knapsack_MWASTE_BETTER" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="dp__backpack_dp__NOIP2005J_herbs_dp_knapsack_MWASTE_BETTER" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="dp__backpack_dp__NOIP2005J_herbs_dp_knapsack_MWASTE_BETTER">
+      <method v="2">
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="dp__backpack_dp__NOIP2005J_herbs_dp_knapsack_PINGPONG" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="dp__backpack_dp__NOIP2005J_herbs_dp_knapsack_PINGPONG" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="dp__backpack_dp__NOIP2005J_herbs_dp_knapsack_PINGPONG">
+      <method v="2">
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="dp__backpack_dp__NOIP2006S_jinming_budget_dp_knapsack" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="dp__backpack_dp__NOIP2006S_jinming_budget_dp_knapsack" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="dp__backpack_dp__NOIP2006S_jinming_budget_dp_knapsack">
       <method v="2">
         <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
       </method>
@@ -259,16 +381,6 @@
         <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
       </method>
     </configuration>
-    <configuration name="pojcs101_M01088_ski" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="pojcs101_M01088_ski" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="pojcs101_M01088_ski">
-      <method v="2">
-        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
-      </method>
-    </configuration>
-    <configuration name="pojcs101_M01088_ski_WRONG" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="pojcs101_M01088_ski_WRONG" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="pojcs101_M01088_ski_WRONG">
-      <method v="2">
-        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
-      </method>
-    </configuration>
     <configuration name="pojcs101_M01321_chest_grid" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="pojcs101_M01321_chest_grid" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="pojcs101_M01321_chest_grid">
       <method v="2">
         <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
@@ -359,6 +471,36 @@
         <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
       </method>
     </configuration>
+    <configuration name="pojcs101_T04117_split_int" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="pojcs101_T04117_split_int" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="pojcs101_T04117_split_int">
+      <method v="2">
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="pojcs101_T12559_biggest_smallest_combination" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="pojcs101_T12559_biggest_smallest_combination" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="pojcs101_T12559_biggest_smallest_combination">
+      <method v="2">
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="pojcs101_T12559_biggest_smallest_combination_WRONG" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="pojcs101_T12559_biggest_smallest_combination_WRONG" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="pojcs101_T12559_biggest_smallest_combination_WRONG">
+      <method v="2">
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="pojcs101_T27104_chicken_monitors" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="pojcs101_T27104_chicken_monitors" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="pojcs101_T27104_chicken_monitors">
+      <method v="2">
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="pojcs101_T27373_biggest_combination_t2" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="pojcs101_T27373_biggest_combination_t2" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="pojcs101_T27373_biggest_combination_t2">
+      <method v="2">
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="pojcs101_T27373_biggest_combination_t2_TLE" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="pojcs101_T27373_biggest_combination_t2_TLE" CONFIG_NAME="Debug-GCC" RUN_TARGET_PROJECT_NAME="exercises" RUN_TARGET_NAME="pojcs101_T27373_biggest_combination_t2_TLE">
+      <method v="2">
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
     <configuration name="noi2001_food_chain_dsu" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
       <module name="exercises" />
       <option name="ENV_FILES" value="" />
@@ -410,36 +552,54 @@
       <method v="2" />
     </configuration>
     <list>
-      <item itemvalue="CMake 应用程序.CMakeCXXCompilerId" />
+      <item itemvalue="CMake 应用程序._others__qyz__gdbh" />
+      <item itemvalue="CMake 应用程序._others__qyz__test" />
+      <item itemvalue="CMake 应用程序.cmake-build-debug-gcc__CMakeFiles__4.3.1__CompilerIdCXX__CMakeCXXCompilerId" />
+      <item itemvalue="CMake 应用程序.dp__backpack_dp__NOIP2005J_herbs_dp_knapsack" />
+      <item itemvalue="CMake 应用程序.dp__backpack_dp__NOIP2005J_herbs_dp_knapsack_MWASTE" />
+      <item itemvalue="CMake 应用程序.dp__backpack_dp__NOIP2005J_herbs_dp_knapsack_MWASTE_BETTER" />
+      <item itemvalue="CMake 应用程序.dp__backpack_dp__NOIP2005J_herbs_dp_knapsack_PINGPONG" />
+      <item itemvalue="CMake 应用程序.dp__backpack_dp__NOIP2006S_jinming_budget_dp_knapsack" />
+      <item itemvalue="CMake 应用程序.dp__NOIP1996S_miner_dp" />
+      <item itemvalue="CMake 应用程序.dp__NOIP1996S_miner_dp_MWASTE" />
+      <item itemvalue="CMake 应用程序.dp__SHOI2002_ski_dp" />
+      <item itemvalue="CMake 应用程序.dp__TJOI2007_walk_segments_dp" />
       <item itemvalue="CMake 应用程序.lc_135_candy" />
       <item itemvalue="CMake 应用程序.luogu_ez_B3628" />
       <item itemvalue="CMake 应用程序.luogu_template_dsu_P3367" />
+      <item itemvalue="CMake 应用程序.NOIP2003J_bigint" />
       <item itemvalue="CMake 应用程序.noip2012s_kings_game" />
       <item itemvalue="CMake 应用程序.pojcs101_E01003" />
       <item itemvalue="CMake 应用程序.pojcs101_E01218" />
       <item itemvalue="CMake 应用程序.pojcs101_E02883" />
       <item itemvalue="CMake 应用程序.pojcs101_M01002_memorable_number" />
       <item itemvalue="CMake 应用程序.pojcs101_M01017_6_boxes" />
-      <item itemvalue="CMake 应用程序.pojcs101_M01088_ski" />
-      <item itemvalue="CMake 应用程序.pojcs101_M01088_ski_WRONG" />
       <item itemvalue="CMake 应用程序.pojcs101_M01321_chest_grid" />
-      <item itemvalue="CMake 应用程序.pojcs101_M01328_radar_greedy" />
       <item itemvalue="CMake 应用程序.pojcs101_M01328_radar_greedy_WRONG" />
+      <item itemvalue="CMake 应用程序.pojcs101_M01328_radar_greedy" />
       <item itemvalue="CMake 应用程序.pojcs101_M01852_ants_falling" />
       <item itemvalue="CMake 应用程序.pojcs101_M01922_ride_follower" />
       <item itemvalue="CMake 应用程序.pojcs101_M02039_snakey_encryption" />
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       <item itemvalue="CMake 应用程序.pojcs101_M02524_ubiquitous_religions_dsu" />
-      <item itemvalue="CMake 应用程序.pojcs101_M02692_12_coins" />
       <item itemvalue="CMake 应用程序.pojcs101_M02692_12_coins_WRONG" />
+      <item itemvalue="CMake 应用程序.pojcs101_M02692_12_coins" />
       <item itemvalue="CMake 应用程序.pojcs101_M02694_polish_notation_tree" />
       <item itemvalue="CMake 应用程序.pojcs101_M02746_josephus_problem" />
       <item itemvalue="CMake 应用程序.pojcs101_M03247_palindromic_prime" />
       <item itemvalue="CMake 应用程序.pojcs101_M03441_sum_zero" />
       <item itemvalue="CMake 应用程序.pojcs101_M03532" />
       <item itemvalue="CMake 应用程序.pojcs101_M03704_brackets" />
-      <item itemvalue="CMake 应用程序.pojcs101_T01011_sticks" />
       <item itemvalue="CMake 应用程序.pojcs101_T01011_sticks_WRONG" />
+      <item itemvalue="CMake 应用程序.pojcs101_T01011_sticks" />
+      <item itemvalue="CMake 应用程序.pojcs101_T04117_split_int" />
+      <item itemvalue="CMake 应用程序.pojcs101_T12559_biggest_smallest_combination_WRONG" />
+      <item itemvalue="CMake 应用程序.pojcs101_T12559_biggest_smallest_combination" />
+      <item itemvalue="CMake 应用程序.pojcs101_T27104_chicken_monitors" />
+      <item itemvalue="CMake 应用程序.pojcs101_T27373_biggest_combination_t2" />
+      <item itemvalue="CMake 应用程序.pojcs101_T27373_biggest_combination_t2_TLE" />
+      <item itemvalue="CMake 应用程序.SHOI2002_ski" />
+      <item itemvalue="CMake 应用程序.SHOI2002_ski_WRONG" />
       <item itemvalue="Python.noi2001_food_chain_dsu" />
       <item itemvalue="Python.pojcs101_M03247_palindromic_prime_init1" />
     </list>
@@ -450,6 +610,32 @@
       </list>
     </recent_temporary>
   </component>
+  <component name="SelectedDebugProfileService"><![CDATA[{
+  "profileIdByStamp": [
+    {
+      "first": {
+        "##RUN_CONFIGURATION##": "CMake 应用程序._others__qyzgdbh",
+        "cmake": "CMakeBuildProfile:Debug-GCC"
+      },
+      "second": "2c1c9069-eeff-46e4-9092-db62e2b1ded5"
+    },
+    {
+      "first": {
+        "##RUN_CONFIGURATION##": "CMake 应用程序.NOIP2003J_bigint",
+        "cmake": "CMakeBuildProfile:Debug-GCC"
+      },
+      "second": "2c1c9069-eeff-46e4-9092-db62e2b1ded5"
+    },
+    {
+      "first": {
+        "##RUN_CONFIGURATION##": "CMake 应用程序.pojcs101_T27373_biggest_combination_t2",
+        "cmake": "CMakeBuildProfile:Debug-GCC"
+      },
+      "second": "2c1c9069-eeff-46e4-9092-db62e2b1ded5"
+    }
+  ],
+  "modificationCount": 49
+}]]></component>
   <component name="SharedIndexes">
     <attachedChunks>
       <set>
@@ -482,9 +668,9 @@
     <isAutomaticBootstrapAfterUpdate value="false" />
   </component>
   <component name="VcsManagerConfiguration">
-    <MESSAGE value="1" />
     <MESSAGE value="CMakeLists.txt" />
-    <option name="LAST_COMMIT_MESSAGE" value="CMakeLists.txt" />
+    <MESSAGE value="1" />
+    <option name="LAST_COMMIT_MESSAGE" value="1" />
   </component>
   <component name="XDebuggerManager">
     <breakpoint-manager>
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 71a0fbe..43fec66 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,15 +1,29 @@
 cmake_minimum_required(VERSION 3.10)
 project(exercises)
 
-# 设置 C++ 标准（例如 C++17）
 set(CMAKE_CXX_STANDARD 17)
 
-# 递归查找当前目录下所有的 .cpp 文件
 file(GLOB_RECURSE SOURCES "*.cpp")
 
-# 遍历所有找到的 .cpp 文件，为每个文件单独创建一个可执行目标
 foreach (source ${SOURCES})
-    # 获取文件名（不带扩展名）作为可执行文件的名字
+    # 获取源文件所在目录（绝对路径）
+    get_filename_component(dir ${source} DIRECTORY)
+    # 计算相对于源码根目录的路径
+    file(RELATIVE_PATH rel_dir ${CMAKE_CURRENT_SOURCE_DIR} ${dir})
+    # 获取文件名（不带扩展名）
     get_filename_component(name ${source} NAME_WE)
-    add_executable(${name} ${source})
+
+    # 构造带相对路径的目标名，例如 src_utils_foo
+    if (rel_dir STREQUAL "")
+        set(target_name "${name}")
+    else ()
+        string(REPLACE "/" "__" rel_dir_flat "${rel_dir}")
+        set(target_name "${rel_dir_flat}__${name}")
+    endif ()
+
+    add_executable(${target_name} ${source})
+    # 顺便把可执行文件输出到与源文件对应的目录中（可选）
+    set_target_properties(${target_name} PROPERTIES
+            RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/${rel_dir}"
+    )
 endforeach ()
\ No newline at end of file
diff --git a/NOIP2003J_bigint.cpp b/NOIP2003J_bigint.cpp
new file mode 100644
index 0000000..576b48f
--- /dev/null
+++ b/NOIP2003J_bigint.cpp
@@ -0,0 +1,104 @@
+#include <cmath>
+#include <iostream>
+#include <utility>
+#include <vector>
+
+using namespace std;
+
+/// 只处理 500 位！
+class BigInt {
+public:
+    using bigint = vector<unsigned long long>;
+    static constexpr unsigned int BASE_DIGITS = 8;
+    const unsigned long long BASE = static_cast<unsigned long long>(std::pow(10, BASE_DIGITS));
+    static constexpr size_t TARGET_SIZE = 125;
+    bigint value;
+
+    BigInt() : value({0}) { organize(); }
+    BigInt(bigint v) : value(std::move(v)) { organize(); }
+
+    BigInt(unsigned long long v) {
+        value.push_back(v);
+        organize();
+    }
+
+    void organize() {
+        value.resize(TARGET_SIZE, 0);
+        for (int i = 0; i < TARGET_SIZE - 1; i++) {
+            value[i + 1] += value[i] / BASE;
+            value[i] %= BASE;
+        }
+        value[TARGET_SIZE - 1] %= BASE;
+    }
+
+    BigInt& operator=(const BigInt& other) {
+        value = other.value;
+        organize();
+        return *this;
+    }
+
+    BigInt operator*(const BigInt& other) const {
+        BigInt ans(0);
+        for (int i = 0; i < TARGET_SIZE; i++) {
+            for (int j = 0; i + j < TARGET_SIZE; j++) {
+                ans.value[i + j] += value[i] * other.value[j];
+            }
+        }
+        ans.organize();
+        return ans;
+    }
+
+    BigInt operator*(const unsigned long other) const {
+        BigInt ans(*this);
+        ans.value[0] *= other;
+        ans.organize();
+        return ans;
+    }
+
+    template <typename T>
+    BigInt operator*=(const T& other) {
+        *this = *this * other;
+        return *this;
+    }
+
+
+    [[nodiscard]] BigInt pow(unsigned int exp) const {
+        if (exp == 0) { return {1}; }
+        if (exp == 1) { return *this; }
+        BigInt ans = (*this * *this).pow(exp / 2);
+        if (exp % 2 == 1) {
+            ans *= *this;
+        }
+        return ans;
+    }
+
+    [[nodiscard]] string to_string(size_t digits = 500) const {
+        string s;
+        for (int i = 0; i < TARGET_SIZE; i++) {
+            string current = std::to_string(value[i]);
+            if (current.size() < BASE_DIGITS) {
+                current.insert(0, BASE_DIGITS - current.size(), '0');
+            }
+            s.insert(0, current);
+        }
+        return s.substr(s.size() - digits, s.size());
+    }
+};
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    unsigned int exp;
+    cin >> exp;
+    cout << floor(exp * log10(2)) + 1 << endl;
+    BigInt ans = BigInt(2).pow(exp);
+    ans.value[0] -= 1; // 2^n 没问题
+    string s = ans.to_string(500);
+    for (int i = 0; i < 500; i += 50) {
+        cout << s.substr(i, 50) << endl;
+    }
+
+
+    return 0;
+}
diff --git a/pojcs101_M01088_ski.cpp b/SHOI2002_ski.cpp
similarity index 100%
rename from pojcs101_M01088_ski.cpp
rename to SHOI2002_ski.cpp
diff --git a/pojcs101_M01088_ski_WRONG.cpp b/SHOI2002_ski_WRONG.cpp
similarity index 100%
rename from pojcs101_M01088_ski_WRONG.cpp
rename to SHOI2002_ski_WRONG.cpp
diff --git a/_others/qyz/gdbh.cpp b/_others/qyz/gdbh.cpp
new file mode 100644
index 0000000..b28f11b
--- /dev/null
+++ b/_others/qyz/gdbh.cpp
@@ -0,0 +1,43 @@
+#include <iostream>
+
+using namespace std;
+
+int primes[2001];
+
+bool is_prime(int a) {
+    for (int i = 2; i * i <= a; i++) {
+        if (a % i != 0) {
+            continue;
+        } else {
+            return false;
+        }
+    }
+    return true;
+}
+
+void init_primes() {
+    int current_num = 2, i = 0;
+    for (;; current_num++) {
+        if (is_prime(current_num)) {
+            primes[i] = current_num;
+            i++;
+        }
+    }
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+    int a;
+    cin >> a;
+    if (a % 2 != 0 || a < 6) {
+        cout << "Error!" << endl;
+    } else
+        for (int i = 0; primes[i] <= a / 2; i++) {
+            if (is_prime(a - primes[i])) {
+                cout << a << "=" << i << "+" << a - i << endl;
+            }
+        }
+
+    return 0;
+}
diff --git a/_others/qyz/test.cpp b/_others/qyz/test.cpp
new file mode 100644
index 0000000..8d6ba74
--- /dev/null
+++ b/_others/qyz/test.cpp
@@ -0,0 +1,18 @@
+#include <iostream>
+
+using namespace std;
+
+
+// x[0]..x[99]
+
+bool is_prime(int n) {
+    for (int i=2; i*i<=n; i++) {
+        if (n%i == 0) {return false;}
+    }
+    return true;
+}
+
+int main() {
+    cout << is_prime(4);
+    return 0;
+}
\ No newline at end of file
diff --git a/dp/NOIP1996S_miner_dp.cpp b/dp/NOIP1996S_miner_dp.cpp
new file mode 100644
index 0000000..457d609
--- /dev/null
+++ b/dp/NOIP1996S_miner_dp.cpp
@@ -0,0 +1,84 @@
+#include <algorithm>
+#include <cstring>
+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+struct Node {
+    int mine_amount = -1, prev = -1;
+};
+
+constexpr int MAX_N = 25, INF = 0x3f3f3f3f;
+int n, mine_amounts[MAX_N];
+bool adj[MAX_N][MAX_N];
+
+// int dp[MAX_N][MAX_N];
+Node dp_route[MAX_N];
+
+void solve_dp() {
+    for (int i=0; i<n; i++) {
+        dp_route[i] = {.mine_amount = mine_amounts[i]};
+    }
+    for (int current = 1; current < n; current++) {
+        for (int prev = 0; prev < current; prev++) {
+            if (adj[prev][current]) {
+                int new_ans = dp_route[prev].mine_amount + mine_amounts[current];
+                if (new_ans > dp_route[current].mine_amount) {
+                    dp_route[current] = {.mine_amount = new_ans, .prev = prev};
+                }
+            }
+        }
+    }
+}
+
+void print_route() {
+    int max_ans = -1, max_idx = -1;
+    vector<int> final_route;
+    for (int i = 0; i < n; i++) {
+        if (dp_route[i].mine_amount > max_ans) {
+            max_ans = dp_route[i].mine_amount;
+            max_idx = i;
+        }
+    }
+    while (max_idx != -1) {
+        final_route.push_back(max_idx);
+        max_idx = dp_route[max_idx].prev;
+    }
+    reverse(final_route.begin(), final_route.end());
+    for (const int i : final_route) {
+        cout << i + 1 << " ";
+    }
+    cout << endl << max_ans << endl;
+}
+
+void log_dp() {
+    for (int i = 0; i < n; i++) {
+        // for (int j = 0; j < n; j++) {
+        //     clog << dp[i][j] << " ";
+        // }
+        clog << "->" << dp_route[i].mine_amount << " " << dp_route[i].prev << endl;
+    }
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> n;
+    for (int i = 0; i < n; i++) {
+        cin >> mine_amounts[i];
+    }
+    for (int i = 0; i < n; i++) {
+        for (int j = i + 1; j < n; j++) {
+            cin >> adj[i][j];
+            adj[j][i] = adj[i][j];
+        }
+    }
+
+    solve_dp();
+    log_dp();
+    print_route();
+
+    return 0;
+}
diff --git a/dp/NOIP1996S_miner_dp_MWASTE.cpp b/dp/NOIP1996S_miner_dp_MWASTE.cpp
new file mode 100644
index 0000000..003cd04
--- /dev/null
+++ b/dp/NOIP1996S_miner_dp_MWASTE.cpp
@@ -0,0 +1,85 @@
+#include <algorithm>
+#include <cstring>
+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+struct Node {
+    int mine_amount = -1, prev = -1;
+};
+
+constexpr int MAX_N = 25, INF = 0x3f3f3f3f;
+int n, mine_amounts[MAX_N];
+bool adj[MAX_N][MAX_N];
+
+int dp[MAX_N][MAX_N];
+Node dp_route[MAX_N];
+
+void solve_dp() {
+    memset(dp, -1, sizeof(dp));
+    for (int i=0; i<n; i++) {
+        dp_route[i] = {.mine_amount = mine_amounts[i]};
+    }
+    for (int current = 1; current < n; current++) {
+        for (int prev = 0; prev < current; prev++) {
+            if (adj[prev][current]) {
+                dp[current][prev] = dp_route[prev].mine_amount + mine_amounts[current];
+                if (dp[current][prev] > dp_route[current].mine_amount) {
+                    dp_route[current] = {.mine_amount = dp[current][prev], .prev = prev};
+                }
+            }
+        }
+    }
+}
+
+void print_route() {
+    int max_ans = -1, max_idx = -1;
+    vector<int> final_route;
+    for (int i = 0; i < n; i++) {
+        if (dp_route[i].mine_amount > max_ans) {
+            max_ans = dp_route[i].mine_amount;
+            max_idx = i;
+        }
+    }
+    while (max_idx != -1) {
+        final_route.push_back(max_idx);
+        max_idx = dp_route[max_idx].prev;
+    }
+    reverse(final_route.begin(), final_route.end());
+    for (const int i : final_route) {
+        cout << i + 1 << " ";
+    }
+    cout << endl << max_ans << endl;
+}
+
+void log_dp() {
+    for (int i = 0; i < n; i++) {
+        for (int j = 0; j < n; j++) {
+            clog << dp[i][j] << " ";
+        }
+        clog << "->" << dp_route[i].mine_amount << " " << dp_route[i].prev << endl;
+    }
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> n;
+    for (int i = 0; i < n; i++) {
+        cin >> mine_amounts[i];
+    }
+    for (int i = 0; i < n; i++) {
+        for (int j = i + 1; j < n; j++) {
+            cin >> adj[i][j];
+            adj[j][i] = adj[i][j];
+        }
+    }
+
+    solve_dp();
+    log_dp();
+    print_route();
+
+    return 0;
+}
diff --git a/dp/SHOI2002_ski_dp.cpp b/dp/SHOI2002_ski_dp.cpp
new file mode 100644
index 0000000..d2aeb84
--- /dev/null
+++ b/dp/SHOI2002_ski_dp.cpp
@@ -0,0 +1,110 @@
+#include <algorithm>
+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+struct Node {
+    int x, y, height;
+};
+
+constexpr int MAX_N = 105;
+constexpr short DX[4] = {0, 1, 0, -1}, DY[4] = {1, 0, -1, 0};
+int r, c;
+int heights[MAX_N][MAX_N];
+vector<int> adj_nodes[MAX_N * MAX_N];
+vector<Node> nodes;
+
+int dp[MAX_N * MAX_N];
+
+int pack_coord(int x, int y) {
+    return x * c + y;
+}
+
+int pack_coord(Node node) {
+    return pack_coord(node.x, node.y);
+}
+
+bool within_board(int x, int y) {
+    return 0 <= x && x < r && 0 <= y && y < c;
+}
+
+
+void log_dp() {
+    for (int i = 0; i < r * c; i++) {
+        clog << dp[i] << "\t";
+        if (i % c == c - 1) {
+            clog << endl;
+        }
+    }
+}
+
+void log_adj_nodes() {
+    for (int i = 0; i < r * c; i++) {
+        clog << i << " -> ";
+        for (int adj_node : adj_nodes[i]) {
+            clog << adj_node << " ";
+        }
+        clog << endl;
+    }
+}
+
+void init_adj_nodes() {
+    for (int i = 0; i < r; i++) {
+        for (int j = 0; j < c; j++) {
+            nodes.push_back({i, j, heights[i][j]});
+            int x = i, y = j;
+            for (int k = 0; k < 4; k++) {
+                int nx = x + DX[k], ny = y + DY[k];
+                if (within_board(nx, ny) && heights[nx][ny] > heights[x][y]) {
+                    // 反向建图，小 -> 大
+                    adj_nodes[pack_coord(x, y)].push_back(pack_coord(nx, ny));
+                }
+            }
+        }
+    }
+    sort(nodes.begin(), nodes.end(), [](const Node& a, const Node& b) {
+        return a.height > b.height;
+    });
+}
+
+
+void solve_dp() {
+    dp[pack_coord(nodes[0])] = 1;
+    for (int i = 1; i < nodes.size(); i++) {
+        Node curr_node = nodes[i];
+        int max_dp = 0;
+        for (int adj_node : adj_nodes[pack_coord(curr_node)]) {
+            max_dp = max(max_dp, dp[adj_node]);
+        }
+        dp[pack_coord(curr_node)] = max_dp + 1;
+    }
+}
+
+int get_ans() {
+    int max_dp = -1;
+    for (int i = 0; i < r * c; i++) {
+        max_dp = max(max_dp, dp[i]);
+    }
+    return max_dp;
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> r >> c;
+    for (int i = 0; i < r; i++) {
+        for (int j = 0; j < c; j++) {
+            cin >> heights[i][j];
+        }
+    }
+
+    init_adj_nodes();
+    solve_dp();
+    log_adj_nodes();
+    log_dp();
+    cout << get_ans() << endl;
+
+    return 0;
+}
diff --git a/dp/backpack_dp/NOIP2005J_herbs_dp_knapsack.cpp b/dp/backpack_dp/NOIP2005J_herbs_dp_knapsack.cpp
new file mode 100644
index 0000000..366d076
--- /dev/null
+++ b/dp/backpack_dp/NOIP2005J_herbs_dp_knapsack.cpp
@@ -0,0 +1,52 @@
+#include <iostream>
+
+using namespace std;
+
+struct Item {
+    int weight, value;
+};
+
+constexpr int MAX_N = 105, MAX_CAPACITY = 1005;
+int capacity, n;
+Item items[MAX_N];
+int dp[MAX_CAPACITY];
+bool ping_pong;
+
+void log_dp() {
+    // for (int i = 0; i <= 1; i++) {
+    for (int j = 0; j <= capacity; j++) {
+        clog << dp[j] << "\t";
+    }
+    clog << endl;
+    // }
+}
+
+void solve_dp() {
+    // for (int i = 0; i <= capacity; i++) { dp[0][i] = 0; }
+    // for (int i = 0; i <= n; i++) { dp[i][0] = 0; }
+    for (int stop_item = 1; stop_item <= n; stop_item++, ping_pong = !ping_pong) {
+        for (int w = capacity; w >= 1; w--) {
+            if (w >= items[stop_item - 1].weight) { // 负数
+                dp[w] = max(dp[w],
+                            dp[w - items[stop_item - 1].weight] + items[stop_item - 1].value);
+            }
+        }
+        // log_dp();
+    }
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> capacity >> n;
+    for (int i = 0; i < n; i++) {
+        cin >> items[i].weight >> items[i].value;
+    }
+
+    solve_dp();
+    cout << dp[capacity] << endl;
+
+
+    return 0;
+}
diff --git a/dp/backpack_dp/NOIP2005J_herbs_dp_knapsack_MWASTE.cpp b/dp/backpack_dp/NOIP2005J_herbs_dp_knapsack_MWASTE.cpp
new file mode 100644
index 0000000..31d5961
--- /dev/null
+++ b/dp/backpack_dp/NOIP2005J_herbs_dp_knapsack_MWASTE.cpp
@@ -0,0 +1,48 @@
+/*
+ * 背包 DP：考虑前 i 个物品的最大价值，在仅有 t 容量的情况下。
+ * 建议两个维度调换一下，方便乒乓/滚动。
+ */
+
+#include <iostream>
+
+using namespace std;
+
+struct Item {
+    int weight, value;
+};
+
+constexpr int MAX_N = 105, MAX_CAPACITY = 1005;
+int capacity, n;
+Item items[MAX_N];
+int dp[MAX_CAPACITY][MAX_N];
+
+void solve_dp() {
+    for (int i = 0; i <= capacity; i++) { dp[i][0] = 0; }
+    for (int i = 0; i <= n; i++) { dp[0][i] = 0; }
+    for (int stop_item = 1; stop_item <= n; stop_item++) {
+        for (int w = 1; w <= capacity; w++) {
+            dp[w][stop_item] = dp[w][stop_item - 1];
+            if (w >= items[stop_item - 1].weight) { // 负数
+                dp[w][stop_item] =
+                    max(dp[w][stop_item],
+                        dp[w - items[stop_item - 1].weight][stop_item - 1] + items[stop_item - 1].value);
+            }
+        }
+    }
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> capacity >> n;
+    for (int i = 0; i < n; i++) {
+        cin >> items[i].weight >> items[i].value;
+    }
+
+    solve_dp();
+    cout << dp[capacity][n] << endl;
+
+
+    return 0;
+}
diff --git a/dp/backpack_dp/NOIP2005J_herbs_dp_knapsack_MWASTE_BETTER.cpp b/dp/backpack_dp/NOIP2005J_herbs_dp_knapsack_MWASTE_BETTER.cpp
new file mode 100644
index 0000000..fba2ec2
--- /dev/null
+++ b/dp/backpack_dp/NOIP2005J_herbs_dp_knapsack_MWASTE_BETTER.cpp
@@ -0,0 +1,57 @@
+/*
+* 背包 DP：考虑前 i 个物品的最大价值，在仅有 t 容量的情况下。
+ */
+
+#include <iostream>
+
+using namespace std;
+
+struct Item {
+    int weight, value;
+};
+
+constexpr int MAX_N = 105, MAX_CAPACITY = 1005;
+int capacity, n;
+Item items[MAX_N];
+int dp[MAX_N][MAX_CAPACITY];
+
+void log_dp() {
+    for (int i = 0; i <= n; i++) {
+        for (int j = 0; j <= capacity; j++) {
+            clog << dp[i][j] << "\t";
+        }
+        clog << endl;
+    }
+}
+
+void solve_dp() {
+    for (int i = 0; i <= capacity; i++) { dp[0][i] = 0; }
+    for (int i = 0; i <= n; i++) { dp[i][0] = 0; }
+    for (int stop_item = 1; stop_item <= n; stop_item++) {
+        for (int w = 1; w <= capacity; w++) {
+            dp[stop_item][w] = dp[stop_item - 1][w];
+            if (w >= items[stop_item - 1].weight) { // 负数
+                dp[stop_item][w] =
+                    max(dp[stop_item][w],
+                        dp[stop_item - 1][w - items[stop_item - 1].weight] + items[stop_item - 1].value);
+            }
+        }
+    }
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> capacity >> n;
+    for (int i = 0; i < n; i++) {
+        cin >> items[i].weight >> items[i].value;
+    }
+
+    solve_dp();
+    log_dp();
+    cout << dp[n][capacity] << endl;
+
+
+    return 0;
+}
\ No newline at end of file
diff --git a/dp/backpack_dp/NOIP2005J_herbs_dp_knapsack_PINGPONG.cpp b/dp/backpack_dp/NOIP2005J_herbs_dp_knapsack_PINGPONG.cpp
new file mode 100644
index 0000000..9da63a0
--- /dev/null
+++ b/dp/backpack_dp/NOIP2005J_herbs_dp_knapsack_PINGPONG.cpp
@@ -0,0 +1,54 @@
+#include <iostream>
+
+using namespace std;
+
+struct Item {
+    int weight, value;
+};
+
+constexpr int MAX_N = 105, MAX_CAPACITY = 1005;
+int capacity, n;
+Item items[MAX_N];
+int dp[2][MAX_CAPACITY];
+bool ping_pong;
+
+void log_dp() {
+    // for (int i = 0; i <= 1; i++) {
+        for (int j = 0; j <= capacity; j++) {
+            clog << dp[ping_pong][j] << "\t";
+        }
+        clog << endl;
+    // }
+}
+
+void solve_dp() {
+    // for (int i = 0; i <= capacity; i++) { dp[0][i] = 0; }
+    // for (int i = 0; i <= n; i++) { dp[i][0] = 0; }
+    for (int stop_item = 1; stop_item <= n; stop_item++, ping_pong = !ping_pong) {
+        for (int w = 1; w <= capacity; w++) {
+            dp[ping_pong][w] = dp[!ping_pong][w];
+            if (w >= items[stop_item - 1].weight) { // 负数
+                dp[ping_pong][w] =
+                    max(dp[ping_pong][w],
+                        dp[!ping_pong][w - items[stop_item - 1].weight] + items[stop_item - 1].value);
+            }
+        }
+        // log_dp();
+    }
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> capacity >> n;
+    for (int i = 0; i < n; i++) {
+        cin >> items[i].weight >> items[i].value;
+    }
+
+    solve_dp();
+    cout << dp[!ping_pong][capacity] << endl;
+
+
+    return 0;
+}
\ No newline at end of file
diff --git a/dp/backpack_dp/NOIP2006S_jinming_budget_dp_knapsack.cpp b/dp/backpack_dp/NOIP2006S_jinming_budget_dp_knapsack.cpp
new file mode 100644
index 0000000..596118b
--- /dev/null
+++ b/dp/backpack_dp/NOIP2006S_jinming_budget_dp_knapsack.cpp
@@ -0,0 +1,86 @@
+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+struct FlatItem {
+    int weight, value;
+
+    FlatItem operator+(const FlatItem& other) const {
+        return {.weight = weight + other.weight, .value = value + other.value};
+    }
+};
+
+struct OriginalItem {
+    FlatItem item{};
+    vector<FlatItem> sons;
+};
+
+constexpr int MAX_N = 65, MAX_CAPACITY = 32005;
+
+int capacity, n;
+vector<OriginalItem> items;
+vector<FlatItem> flat_items;
+int fathers_temp[MAX_N];
+
+int dp[MAX_CAPACITY];
+
+vector<FlatItem> generate_flat_items(OriginalItem item) {
+    switch (item.sons.size()) {
+        case 0:
+            return vector{item.item};
+        case 1:
+            return vector{
+                item.item,
+                item.sons[0] + item.item,
+            };
+        case 2:
+            return vector{
+                item.item,
+                item.sons[0] + item.item,
+                item.sons[1] + item.item,
+                item.sons[0] + item.sons[1] + item.item,
+            };
+        default:
+            throw logic_error("Invalid item size!");
+    }
+}
+
+
+void solve_dp() {
+    for (int i = 0; i < n; i++) {
+        if (items[i].item.value == -1) { continue; }
+        for (int w=capacity; w>=1; w--) {
+            // dp[w] = dp[w] // 不买
+            for (const auto& [weight, value] : generate_flat_items(items[i])) {
+                if (w >= weight) {
+                    dp[w] = max(dp[w], dp[w - weight] + value);
+                }
+            }
+        }
+    }
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> capacity >> n;
+    items.resize(n);
+
+    for (int i = 0; i < n; i++) {
+        cin >> items[i].item.weight >> items[i].item.value >> fathers_temp[i];
+        items[i].item.value *= items[i].item.weight; // 题意
+    }
+    for (int i = 0; i < n; i++) {
+        if (fathers_temp[i] != 0) {
+            items[fathers_temp[i] - 1].sons.push_back(items[i].item);
+            items[i].item.value = -1; // 删掉这个元素！
+        }
+    }
+
+    solve_dp();
+    cout << dp[capacity] << endl;
+
+    return 0;
+}
diff --git a/pojcs101_T04117_split_int.cpp b/pojcs101_T04117_split_int.cpp
new file mode 100644
index 0000000..7a2d246
--- /dev/null
+++ b/pojcs101_T04117_split_int.cpp
@@ -0,0 +1,39 @@
+#include <iostream>
+#include <unordered_map>
+
+using namespace std;
+
+constexpr int MAX_N = 100;
+int cache[MAX_N * MAX_N];
+
+int get_split_solutions_count(int n, int parts_count) {
+    if (n <= 0 || parts_count > n) { return 0; }
+    if (parts_count == 1 || parts_count == n) { return 1; }
+    if (cache[n * MAX_N + parts_count] != 0) {
+        return cache[n * MAX_N + parts_count];
+    }
+    int ans = 0;
+    for (int i = 1; i <= n / 2; i++) {
+        ans += get_split_solutions_count(n - i - (i - 1) * (parts_count - 1), parts_count - 1);
+    }
+    cache[n * MAX_N + parts_count] = ans;
+    return ans;
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int n;
+    while (cin >> n) {
+        // cout << get_split_solutions_count(n, 2) << endl;
+        int ans = 0;
+        for (int i = 1; i <= n; i++) {
+            ans += get_split_solutions_count(n, i);
+            // clog << i << ":" << ans << " ";
+        }
+        cout << ans << endl;
+    }
+
+    return 0;
+}
diff --git a/pojcs101_T12559_biggest_smallest_combination.cpp b/pojcs101_T12559_biggest_smallest_combination.cpp
new file mode 100644
index 0000000..28af504
--- /dev/null
+++ b/pojcs101_T12559_biggest_smallest_combination.cpp
@@ -0,0 +1,32 @@
+#include <iostream>
+#include <vector>
+#include <algorithm>
+#include <cmath>
+
+using namespace std;
+
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int nums_amount;
+    cin >> nums_amount;
+    vector<string> nums(nums_amount);
+    for (int i = 0; i < nums_amount; i++) {
+        cin >> nums[i];
+    }
+    sort(nums.begin(), nums.end(), [](const string& a, const string& b) {
+        return a + b < b + a;
+    });
+    for (int i = nums_amount - 1; i >= 0; i--) {
+        cout << nums[i];
+    }
+    cout << " ";
+    for (int i = 0; i < nums_amount; i++) {
+        cout << nums[i];
+    }
+    cout << endl;
+
+    return 0;
+}
diff --git a/pojcs101_T12559_biggest_smallest_combination_WRONG.cpp b/pojcs101_T12559_biggest_smallest_combination_WRONG.cpp
new file mode 100644
index 0000000..af9b993
--- /dev/null
+++ b/pojcs101_T12559_biggest_smallest_combination_WRONG.cpp
@@ -0,0 +1,66 @@
+#include <iostream>
+#include <vector>
+#include <algorithm>
+#include <cmath>
+
+using namespace std;
+
+size_t get_digits(unsigned long long number) {
+    return static_cast<size_t>(log10(number)) + 1;
+}
+
+bool is_number_rising(unsigned long long number) {
+    while (number % 10 == (number / 10) % 10) { number /= 10; }
+    return (number / 10) % 10 < number % 10;
+}
+
+struct PartialNumber {
+    unsigned long long number = 0;
+    unsigned long long filled_number = -1;
+    size_t digits = 0;
+
+    void fill() {
+        digits = get_digits(number);
+        filled_number = number;
+        while (filled_number < 10000000000000000) {
+            filled_number *= 10, filled_number += number % 10;
+        }
+    }
+
+    bool operator<(PartialNumber& other) {
+        if (filled_number == -1) { fill(); }
+        if (other.filled_number == -1) { other.fill(); }
+        if (filled_number == other.filled_number) {
+            if (is_number_rising(number)) { return digits < other.digits; }
+            return digits > other.digits;
+        }
+        return filled_number < other.filled_number;
+    }
+
+    bool operator>(PartialNumber& other) {
+        return other < *this;
+    }
+};
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int nums_amount;
+    cin >> nums_amount;
+    vector<PartialNumber> nums(nums_amount);
+    for (int i = 0; i < nums_amount; i++) {
+        cin >> nums[i].number;
+    }
+    sort(nums.begin(), nums.end());
+    for (int i = nums_amount - 1; i >= 0; i--) {
+        cout << nums[i].number;
+    }
+    cout << " ";
+    for (int i = 0; i < nums_amount; i++) {
+        cout << nums[i].number;
+    }
+    cout << endl;
+
+    return 0;
+}
diff --git a/pojcs101_T27104_chicken_monitors.cpp b/pojcs101_T27104_chicken_monitors.cpp
new file mode 100644
index 0000000..7b16feb
--- /dev/null
+++ b/pojcs101_T27104_chicken_monitors.cpp
@@ -0,0 +1,62 @@
+#include <iostream>
+#include <vector>
+#include <algorithm>
+
+using namespace std;
+
+using Range = pair<int, int>;
+
+void log_range_vector(const vector<Range>& ranges, const string& prefix = "") {
+    clog << prefix;
+    for (const Range& r : ranges) {
+        clog << "(" << r.first << "," << r.second << ")" << " ";
+    }
+    clog << endl;
+}
+
+size_t get_min_ranges_amount(vector<Range> ranges, Range full_range) {
+    sort(ranges.begin(), ranges.end());
+    log_range_vector(ranges, "ranges: ");
+    size_t i = 0, ans = 0;
+    while (ranges[i].second < full_range.first) { i++; }
+    int max_start = 0, current_end = ranges[i].second;
+    while (true) {
+        while (ranges[i].first <= max_start) {
+            current_end = max(current_end, ranges[i].second);
+            if (current_end >= full_range.second) { return ans + 1; }
+            i++;
+            if (i >= ranges.size()) { throw invalid_argument("No valid ranges found (inside loop)"); }
+        }
+        ans++;
+        if (current_end >= full_range.second) { return ans; }
+        max_start = current_end;
+    }
+    throw invalid_argument("No valid ranges found (outside loop)");
+}
+
+vector<Range> get_ranges(const vector<int>& monitors) {
+    vector<Range> ranges;
+    for (int i = 0; i < monitors.size(); i++) {
+        ranges.emplace_back(i - monitors[i], i + monitors[i] + 1);
+    }
+    return ranges;
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    size_t monitors_amount;
+    cin >> monitors_amount;
+    vector<int> monitors(monitors_amount);
+    for (int i = 0; i < monitors_amount; i++) {
+        cin >> monitors[i];
+    }
+    vector<Range> ranges = get_ranges(monitors);
+    Range full_range = {0, monitors_amount};
+
+    cout << get_min_ranges_amount(ranges, full_range) << endl;
+
+
+    return 0;
+}
diff --git a/pojcs101_T27373_biggest_combination_t2.cpp b/pojcs101_T27373_biggest_combination_t2.cpp
new file mode 100644
index 0000000..1786c47
--- /dev/null
+++ b/pojcs101_T27373_biggest_combination_t2.cpp
@@ -0,0 +1,59 @@
+#include <iostream>
+#include <vector>
+#include <map>
+#include <algorithm>
+
+using namespace std;
+
+constexpr size_t MAX_M = 201, MAX_N = 1001;
+
+vector<string> nums;
+vector<bool> used;
+map<size_t, int, greater<>> num_sizes;
+
+string dp[MAX_M][MAX_N];
+
+template <typename T>
+void log_vector(const vector<T>& vec, const string& prefix = "") {
+    clog << prefix << endl;
+    for (const T& item : vec) {
+        clog << item << " ";
+    }
+    clog << endl;
+}
+
+
+void output_from_used() {
+    for (int i = 0; i < nums.size(); i++) {
+        if (used[i]) { cout << nums[i]; }
+    }
+    cout << endl;
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int nums_amount, target_size;
+    cin >> target_size >> nums_amount;
+    nums.resize(nums_amount), used.resize(nums_amount);
+    for (int i = 0; i < nums_amount; i++) {
+        cin >> nums[i];
+    }
+    sort(nums.begin(), nums.end(), [](const string& a, const string& b) {
+        return a + b > b + a;
+    });
+    for (const string& num : nums) {
+        num_sizes[num.size()]++;
+    }
+    log_vector(nums, "nums: ");
+    // while (!can_form_combination(target_size, target_size)) {
+    //     target_size--;
+    // }
+    clog << "target_size: " << target_size << endl;
+    calc_used(target_size, target_size);
+    log_vector(used, "used: ");
+    output_from_used();
+
+    return 0;
+}
diff --git a/pojcs101_T27373_biggest_combination_t2_TLE.cpp b/pojcs101_T27373_biggest_combination_t2_TLE.cpp
new file mode 100644
index 0000000..4519888
--- /dev/null
+++ b/pojcs101_T27373_biggest_combination_t2_TLE.cpp
@@ -0,0 +1,88 @@
+#include <iostream>
+#include <vector>
+#include <map>
+#include <unordered_map>
+#include <algorithm>
+
+using namespace std;
+
+vector<string> nums;
+vector<bool> used;
+map<size_t, int, greater<>> num_sizes;
+
+template <typename T>
+void log_vector(const vector<T>& vec, const string& prefix = "") {
+    clog << prefix << endl;
+    for (const T& item : vec) {
+        clog << item << " ";
+    }
+    clog << endl;
+}
+
+bool can_form_combination(const size_t target_size,
+                          const size_t remaining_size
+) {
+    if (remaining_size == 0) { return true; }
+    for (auto& [size, count] : num_sizes) {
+        if (size > remaining_size) { break; }
+        if (count > 0) {
+            count--;
+            if (can_form_combination(target_size, remaining_size - size)) {
+                return true;
+            }
+            count++;
+        }
+    }
+    return false;
+}
+
+bool calc_used(const size_t target_size, const size_t remaining_size, const size_t start_idx = 0) {
+    if (remaining_size == 0) { return true; }
+    for (size_t i = start_idx; i < nums.size(); i++) {
+        if (nums[i].size() > remaining_size) { continue; }
+        used[i] = true;
+        if (calc_used(target_size, remaining_size - nums[i].size(), i + 1)) {
+            return true;
+        }
+        used[i] = false;
+        if (calc_used(target_size, remaining_size, i + 1)) {
+            return true;
+        }
+    }
+    return false;
+}
+
+void output_from_used() {
+    for (int i = 0; i < nums.size(); i++) {
+        if (used[i]) { cout << nums[i]; }
+    }
+    cout << endl;
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int nums_amount, target_size;
+    cin >> target_size >> nums_amount;
+    nums.resize(nums_amount), used.resize(nums_amount);
+    for (int i = 0; i < nums_amount; i++) {
+        cin >> nums[i];
+    }
+    sort(nums.begin(), nums.end(), [](const string& a, const string& b) {
+        return a + b > b + a;
+    });
+    for (const string& num : nums) {
+        num_sizes[num.size()]++;
+    }
+    log_vector(nums, "nums: ");
+    // while (!can_form_combination(target_size, target_size)) {
+    //     target_size--;
+    // }
+    clog << "target_size: " << target_size << endl;
+    calc_used(target_size, target_size);
+    log_vector(used, "used: ");
+    output_from_used();
+
+    return 0;
+}