CMakeLists.txt

pojcs101_M02746_josephus_problem_simulation.cpp

@@ -0,0 +1,34 @@
+#include <iostream>
+
+using namespace std;
+
+constexpr size_t MAX_N = 305;
+
+
+size_t simulate_monkeys(const size_t monkeys_count, const int m) {
+    bool monkeys[MAX_N] = {false};
+    int died_monkeys_count = 0;
+    for (size_t i = 0, current_num = 0;;
+         i = (i + 1) % monkeys_count,
+         current_num = (current_num + 1) % m) {
+        while (monkeys[i]) { i = (i + 1) % monkeys_count; }
+        if (current_num == m - 1) { monkeys[i] = true, died_monkeys_count++; }
+        if (died_monkeys_count == monkeys_count - 1) { break; }
+    }
+    for (int i = 0; i < monkeys_count; i++) {
+        if (!monkeys[i]) { return i; }
+    }
+    throw logic_error("???");
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int monkeys_count, m;
+    while (cin >> monkeys_count >> m && m) {
+        cout << simulate_monkeys(monkeys_count, m) + 1 << endl;
+    }
+
+    return 0;
+}