제출 #1223126

#제출 시각아이디문제언어결과실행 시간메모리
1223126yuqzii드문 곤충 (IOI22_insects)C++20
53.13 / 100
49 ms404 KiB
#include "insects.h" #include <vector> using namespace std; int min_cardinality(int N) { int k = 0, cnt = 0; vector<char> in(N); for (int i = 0; i < N; i++) { move_inside(i); if (press_button() == 1) { ++k; ++cnt; in[i] = true; } else move_outside(i); } int l = 1, r = N / k + 1; while (l < r - 1) { int x = (l + r) / 2; for (int i = 0; i < N; i++) { if (!in[i]) { move_inside(i); if (press_button() > x) move_outside(i); else { ++cnt; in[i] = true; } } } if (cnt == k * x) { l = x; } else { r = x; for (int i = 0; i < N; i++) { cnt = 0; if (in[i]) { move_outside(i); in[i] = false; } } } } return l; }
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