From 2b6dc69bde3160377edd6feaff3d5062fbe1680e Mon Sep 17 00:00:00 2001
From: rogerwang2008 <rogerwang2008@163.com>
Date: Fri, 24 Jul 2026 13:46:36 +0800
Subject: [PATCH] 2

---
 .idea/exercises.iml                           |  2 -
 .idea/workspace.xml                           | 74 +++++++++--------
 lc_127.py                                     | 42 ++++++++++
 ...pp => pojcs101_M01002_memorable_number.cpp |  0
 pojcs101_M01017_6_boxes.cpp                   | 78 ++++++++++++++++++
 pojcs101_M02692_12_coins.cpp                  | 65 +++++++++++++++
 pojcs101_M02692_12_coins_WRONG.cpp            | 80 +++++++++++++++++++
 7 files changed, 305 insertions(+), 36 deletions(-)
 delete mode 100644 .idea/exercises.iml
 create mode 100644 lc_127.py
 rename pojcs101_M01002.cpp => pojcs101_M01002_memorable_number.cpp (100%)
 create mode 100644 pojcs101_M01017_6_boxes.cpp
 create mode 100644 pojcs101_M02692_12_coins.cpp
 create mode 100644 pojcs101_M02692_12_coins_WRONG.cpp

diff --git a/.idea/exercises.iml b/.idea/exercises.iml
deleted file mode 100644
index 4c94235..0000000
--- a/.idea/exercises.iml
+++ /dev/null
@@ -1,2 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module classpath="CIDR" type="CPP_MODULE" version="4" />
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 44ea720..c9bc359 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -10,26 +10,13 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="4491295e-723c-4e0b-b7b4-9be1cbde5db8" name="更改" comment="">
-      <change afterPath="$PROJECT_DIR$/.idea/editor.xml" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/luogu_ez_B3628.cpp" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/pojcs101_E01003.cpp" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/pojcs101_E01218.cpp" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/pojcs101_E02883.cpp" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/pojcs101_M01002.cpp" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/pojcs101_M02692.cpp" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.gitignore" beforeDir="false" afterPath="$PROJECT_DIR$/.gitignore" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/.gitignore" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/CodeEpiphany/challenges.db" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/CodeEpiphany/luogu.xml" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/MarsCodeWorkspaceAppSettings.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/MarsCodeWorkspaceAppSettings.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/codeStyles/Project.xml" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/codeStyles/codeStyleConfig.xml" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/exercises@1.iml" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/inspectionProfiles/profiles_settings.xml" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/misc.xml" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/modules.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/modules.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/pyProjectModel.xml" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/vcs.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/vcs.xml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/lc_127.py" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/pojcs101_M01017_6_boxes.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/pojcs101_M02692_12_coins.cpp" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/pojcs101_M02692_12_coins_WRONG.cpp" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/exercises.iml" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/pojcs101_M01002.cpp" beforeDir="false" afterPath="$PROJECT_DIR$/pojcs101_M01002_memorable_number.cpp" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -67,14 +54,17 @@
   </component>
   <component name="PropertiesComponent"><![CDATA[{
   "keyToString": {
+    "C/C++ 文件.D_pojcs101_M02692.cpp.executor": "Run",
     "C/C++ 文件.luogu_UVA755.cpp.executor": "Run",
     "C/C++ 文件.luogu_ez_B3628.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",
+    "C/C++ 文件.pojcs101_M01017_6_boxes.cpp.executor": "Run",
     "C/C++ 文件.pojcs101_M02692.cpp.executor": "Run",
     "CidrDebugProfileConversion": "true",
     "ModuleVcsDetector.initialDetectionPerformed": "true",
+    "Python.lc_127.executor": "Run",
     "RunOnceActivity.RadMigrateCodeStyle": "true",
     "RunOnceActivity.ShowReadmeOnStart": "true",
     "RunOnceActivity.cidr.known.project.marker": "true",
@@ -84,20 +74,23 @@
     "cidr.known.project.marker": "true",
     "codeWithMe.voiceChat.enabledByDefault": "false",
     "git-widget-placeholder": "main",
+    "last_opened_file_path": "E:/Projects/exercises",
+    "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": "preferences.sourceCode.C++"
   }
 }]]></component>
-  <component name="RunManager" selected="C/C++ 文件.pojcs101_M02692.cpp">
-    <configuration name="luogu_UVA755.cpp" type="CppFileRunConfiguration" factoryName="CppFileRunConfiguration" temporary="true" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="luogu_UVA755.cpp" CONFIG_NAME="luogu_UVA755.cpp">
-      <option name="sourceFile" value="luogu_UVA755.cpp" />
+  <component name="RunManager" selected="C/C++ 文件.pojcs101_M01017_6_boxes.cpp">
+    <configuration name="D_pojcs101_M02692.cpp" type="CppFileRunConfiguration" factoryName="CppFileRunConfiguration" temporary="true" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="D_pojcs101_M02692.cpp" CONFIG_NAME="D_pojcs101_M02692.cpp">
+      <option name="sourceFile" value="D_pojcs101_M02692.cpp" />
       <method v="2">
         <option name="com.jetbrains.cidr.cpp.runfile.CppFileBuildBeforeRunTaskProvider$BasicBuildBeforeRunTask" enabled="true" />
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-    <configuration name="luogu_ez_B3628.cpp" type="CppFileRunConfiguration" factoryName="CppFileRunConfiguration" temporary="true" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="luogu_ez_B3628.cpp" CONFIG_NAME="luogu_ez_B3628.cpp">
-      <option name="sourceFile" value="luogu_ez_B3628.cpp" />
+    <configuration name="luogu_UVA755.cpp" type="CppFileRunConfiguration" factoryName="CppFileRunConfiguration" temporary="true" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="luogu_UVA755.cpp" CONFIG_NAME="luogu_UVA755.cpp">
+      <option name="sourceFile" value="luogu_UVA755.cpp" />
       <method v="2">
         <option name="com.jetbrains.cidr.cpp.runfile.CppFileBuildBeforeRunTaskProvider$BasicBuildBeforeRunTask" enabled="true" />
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@@ -114,21 +107,26 @@
         <option name="com.jetbrains.cidr.cpp.runfile.CppFileBuildBeforeRunTaskProvider$BasicBuildBeforeRunTask" enabled="true" />
       </method>
     </configuration>
+    <configuration name="pojcs101_M01017_6_boxes.cpp" type="CppFileRunConfiguration" factoryName="CppFileRunConfiguration" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="pojcs101_M01017_6_boxes.cpp" CONFIG_NAME="pojcs101_M01017_6_boxes.cpp">
+      <option name="sourceFile" value="pojcs101_M01017_6_boxes.cpp" />
+      <method v="2">
+        <option name="com.jetbrains.cidr.cpp.runfile.CppFileBuildBeforeRunTaskProvider$BasicBuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
     <configuration name="pojcs101_M02692.cpp" type="CppFileRunConfiguration" factoryName="CppFileRunConfiguration" temporary="true" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="exercises" TARGET_NAME="pojcs101_M02692.cpp" CONFIG_NAME="pojcs101_M02692.cpp">
       <option name="sourceFile" value="pojcs101_M02692.cpp" />
       <method v="2">
         <option name="com.jetbrains.cidr.cpp.runfile.CppFileBuildBeforeRunTaskProvider$BasicBuildBeforeRunTask" enabled="true" />
       </method>
     </configuration>
-    <recent_temporary>
-      <list>
-        <item itemvalue="C/C++ 文件.pojcs101_M02692.cpp" />
-        <item itemvalue="C/C++ 文件.luogu_UVA755.cpp" />
-        <item itemvalue="C/C++ 文件.luogu_ez_B3628.cpp" />
-        <item itemvalue="C/C++ 文件.ojcs101_E02883.cpp" />
-        <item itemvalue="C/C++ 文件.ojcs101_E01218.cpp" />
-      </list>
-    </recent_temporary>
+  </component>
+  <component name="SharedIndexes">
+    <attachedChunks>
+      <set>
+        <option value="bundled-js-predefined-d6986cc7102b-4abd2a77f808-JavaScript-PY-262.8665.309" />
+        <option value="bundled-python-sdk-c6d794e1806d-5bd6d13a2a75-com.jetbrains.pycharm.pro.sharedIndexes.bundled-PY-262.8665.309" />
+      </set>
+    </attachedChunks>
   </component>
   <component name="TaskManager">
     <task active="true" id="Default" summary="默认任务">
@@ -137,14 +135,22 @@
       <option name="number" value="Default" />
       <option name="presentableId" value="Default" />
       <updated>1784800801763</updated>
+      <workItem from="1784856532675" duration="4766000" />
     </task>
     <servers />
   </component>
   <component name="TypeScriptGeneratedFilesManager">
     <option name="version" value="3" />
   </component>
+  <component name="VcsManagerConfiguration">
+    <MESSAGE value="1" />
+    <option name="LAST_COMMIT_MESSAGE" value="1" />
+  </component>
   <component name="XSLT-Support.FileAssociations.UIState">
     <expand />
     <select />
   </component>
+  <component name="com.intellij.coverage.CoverageDataManagerImpl">
+    <SUITE FILE_PATH="coverage/exercises$lc_127.coverage" NAME="lc_127 覆盖结果" MODIFIED="1784859593317" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="false" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
+  </component>
 </project>
\ No newline at end of file
diff --git a/lc_127.py b/lc_127.py
new file mode 100644
index 0000000..0720ba0
--- /dev/null
+++ b/lc_127.py
@@ -0,0 +1,42 @@
+import sys
+
+
+class Solution:
+    def __init__(self):
+        self.number_set: set[int] = set()  # 哈希表，全 O(1)
+        self.longest_length: int = 1
+
+    def longestConsecutive(self, nums: list[int]) -> int:
+        if not nums: return 0
+        self.number_set = set(nums)  # O(n)
+        for n in self.number_set:
+            # n = self.number_set.pop()
+            # print(n, file=sys.stderr)
+            current_length: int = 1
+            if n + 1 in self.number_set:
+                continue
+            # pointer = n
+            # while True:
+            #     if pointer + 1 in self.number_set:
+            #         pointer += 1
+            #         current_length += 1
+            #         self.number_set.remove(pointer)
+            #     else:
+            #         break
+            pointer = n
+            while True:
+                if pointer - 1 in self.number_set:
+                    pointer -= 1
+                    current_length += 1
+                    # self.number_set.remove(pointer)
+                else:
+                    break
+            self.longest_length = max(current_length, self.longest_length)
+
+        return self.longest_length
+
+
+if __name__ == '__main__':
+    sol = Solution()
+    print(sol.longestConsecutive([100, 4, 200, 1, 3, 2]))
+    print(sol.longestConsecutive([0, 3, 7, 2, 5, 8, 4, 6, 0, 1]))
diff --git a/pojcs101_M01002.cpp b/pojcs101_M01002_memorable_number.cpp
similarity index 100%
rename from pojcs101_M01002.cpp
rename to pojcs101_M01002_memorable_number.cpp
diff --git a/pojcs101_M01017_6_boxes.cpp b/pojcs101_M01017_6_boxes.cpp
new file mode 100644
index 0000000..53525dc
--- /dev/null
+++ b/pojcs101_M01017_6_boxes.cpp
@@ -0,0 +1,78 @@
+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+int package_requirement(vector<int> box_counts) {
+    int answer = box_counts[5] + box_counts[4] + box_counts[3];
+    // 5x5
+    box_counts[0] -= min(box_counts[4] * 11, box_counts[0]);
+    // 4x4
+    box_counts[1] -= box_counts[3] * 5;
+    if (box_counts[1] < 0) {
+        // 放 1x1
+        box_counts[0] -= min(-box_counts[1] * 4, box_counts[0]);
+        box_counts[1] = 0;
+    }
+    // 3x3
+    if (box_counts[2]) {
+        answer += (box_counts[2] - 1) / 4 + 1;
+        switch (4 - box_counts[2] % 4) {
+            case 4: break;
+            case 1:
+                box_counts[1]--;
+                box_counts[0] -= min(5, box_counts[0]);;
+                // if (box_counts[1]) {
+                //     box_counts[1]--;
+                //     box_counts[0] -= min(5, box_counts[0]);;
+                // } else {
+                //     box_counts[0] -= min(9, box_counts[0]);
+                // }
+                break;
+            case 2:
+                box_counts[1] -= 3;
+                box_counts[0] -= min(6, box_counts[0]);
+                break;
+            case 3:
+                box_counts[1] -= 5;
+                box_counts[0] -= min(7, box_counts[0]);
+                break;
+            default:
+                throw logic_error("remaining_3x3_areas must be 4(0), 1, 2, or 3");
+        }
+        if (box_counts[1] < 0) {
+            // 放 1x1
+            box_counts[0] -= min(-box_counts[1] * 4, box_counts[0]);
+            box_counts[1] = 0;
+        }
+    }
+    // 2x2
+    if (box_counts[1]) {
+        answer += (box_counts[1] - 1) / 9 + 1;
+        int remaining_2x2_areas = 9 - box_counts[1] % 9;
+        if (remaining_2x2_areas == 9) { remaining_2x2_areas = 0; }
+        box_counts[0] -= min(remaining_2x2_areas * 4, box_counts[0]);
+    }
+    // 1x1
+    if (box_counts[0]) {
+        answer += (box_counts[0] - 1) / 36 + 1;
+    }
+    return answer;
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+    vector<int> box_counts(6);
+
+    for (;;) {
+        cin >> box_counts[0] >> box_counts[1] >> box_counts[2] >> box_counts[3] >> box_counts[4] >> box_counts[5];
+        if (box_counts[0] == 0 && box_counts[1] == 0 && box_counts[2] == 0 && box_counts[3] == 0 && box_counts[4] == 0
+            && box_counts[5] == 0) {
+            break;
+        }
+        cout << package_requirement(box_counts) << endl;
+    }
+
+    return 0;
+}
diff --git a/pojcs101_M02692_12_coins.cpp b/pojcs101_M02692_12_coins.cpp
new file mode 100644
index 0000000..7ed968c
--- /dev/null
+++ b/pojcs101_M02692_12_coins.cpp
@@ -0,0 +1,65 @@
+#include <cstring>
+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+void solveGroup() {
+    bool tempList[12] = {false};
+    bool realCoins[12] = {false};
+    vector<pair<string, string> > lighterResults;
+    for (int _ = 0; _ < 3; _++) {
+        string s1, s2, comparison;
+        cin >> s1 >> s2 >> comparison;
+        if (comparison == "even") {
+            for (const char c: s1 + s2) {
+                realCoins[c - 'A'] = true;
+            }
+        } else {
+            memset(tempList, false, sizeof(tempList));
+            for (const char c: s1 + s2) { tempList[c - 'A'] = true; }
+            for (int i = 0; i < 12; i++) {
+                if (!tempList[i]) { realCoins[i] = true; }
+            }
+
+            if (comparison == "down") {
+                lighterResults.emplace_back(s2, s1);
+            } else {
+                lighterResults.emplace_back(s1, s2);
+            }
+        }
+    }
+    for (int i = 0; i < 12; i++) {
+        if (realCoins[i]) continue;
+        int conclusion = 0;
+        for (const auto &[s1, s2]: lighterResults) {
+            if (s1.find(static_cast<char>(i + 'A')) != string::npos) {
+                if (conclusion == 1) {
+                    conclusion = -2;
+                    break;
+                }
+                conclusion = -1;
+            } else if (s2.find(static_cast<char>(i + 'A')) != string::npos) {
+                if (conclusion == -1) {
+                    conclusion = -2;
+                    break;
+                }
+                conclusion = 1;
+            }
+        }
+        if (conclusion == -2 || conclusion == 0) { continue; }
+        cout << static_cast<char>(i + 'A') << " is the counterfeit coin and it is "
+                << (conclusion == 1 ? "light." : "heavy.") << endl;
+    }
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+    int n;
+    cin >> n;
+    for (int _ = 0; _ < n; _++) {
+        solveGroup();
+    }
+    return 0;
+}
diff --git a/pojcs101_M02692_12_coins_WRONG.cpp b/pojcs101_M02692_12_coins_WRONG.cpp
new file mode 100644
index 0000000..58a74de
--- /dev/null
+++ b/pojcs101_M02692_12_coins_WRONG.cpp
@@ -0,0 +1,80 @@
+#include <cstring>
+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+void solveGroup() {
+    int fakeValue[12] = {};
+    bool tempList[12] = {false};
+    // int realCount = 0;
+    vector<pair<string, string> > lighterResults;
+    for (int _ = 0; _ < 3; _++) {
+        string s1, s2, comparison;
+        cin >> s1 >> s2 >> comparison;
+        memset(tempList, false, sizeof(tempList));
+        if (comparison == "even") {
+            // 八个都是真的
+            for (const char c: s1 + s2) {
+                tempList[c - 'A'] = true;
+                fakeValue[c - 'A'] -= 120;
+            }
+            for (int i = 0; i < 12; i++) {
+                if (!tempList[i]) { fakeValue[i]++; }
+            }
+        } else {
+            // 剩下四个是真的
+            for (const char c: s1 + s2) {
+                tempList[c - 'A'] = true;
+                fakeValue[c - 'A']++;
+            }
+            for (int i = 0; i < 12; i++) {
+                if (!tempList[i]) { fakeValue[i] -= 120; }
+            }
+            // 不着急比
+            if (comparison == "down") {
+                lighterResults.emplace_back(s2, s1);
+            } else {
+                lighterResults.emplace_back(s1, s2);
+            }
+        }
+        for (const int val: fakeValue) {
+            clog << val << endl;
+        }
+    }
+
+    int theFakeOne = -1, maxFakeVal = -120;
+    for (int i = 0; i < 12; i++) {
+        if (fakeValue[i] > maxFakeVal) {
+            maxFakeVal = fakeValue[i];
+            theFakeOne = i;
+        }
+    }
+    for (const auto &[s1, s2]: lighterResults) {
+        for (const char c: s1) {
+            if (c == 'A' + theFakeOne) {
+                cout << static_cast<char>(theFakeOne + 'A') << " is the counterfeit coin and it is heavy." << endl;
+                return;
+            }
+        }
+        for (const char c: s2) {
+            if (c == 'A' + theFakeOne) {
+                cout << static_cast<char>(theFakeOne + 'A') << " is the counterfeit coin and it is light." << endl;
+                return;
+            }
+        }
+    }
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int n;
+    cin >> n;
+    for (int _ = 0; _ < n; _++) {
+        solveGroup();
+    }
+
+    return 0;
+}