제출 #1216794

#제출 시각아이디문제언어결과실행 시간메모리
1216794takoshanava동굴 (IOI13_cave)C++20
0 / 100
144 ms536 KiB
#include "cave.h" #include <bits/stdc++.h> using namespace std; int R[5000], D[5000]; bool vis[5000]; void exploreCave(int N) { for (int i = 0; i < N; i++) { R[i] = 0; D[i] = 0; vis[i] = false; } for (int j = 0; j < N; j++) { int l = 0, r = N - 1, idx = -1; while (l <= r) { int mid = (l + r) / 2; int tmp[5000]; for (int i = 0; i < N; i++) tmp[i] = R[i]; for (int i = l; i <= mid; i++){ if (!vis[i]){ tmp[i] = 1 - tmp[i]; } } int res = tryCombination(tmp); if (res == -1 or res > j) { r = mid - 1; } else { l = mid + 1; } } idx = l; vis[idx] = true; R[idx] = 0; int res = tryCombination(R); if (res != -1 and res <= j){ R[idx] = 1; } D[idx] = j; } answer(R, D); }
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