제출 #314661

#제출 시각아이디문제언어결과실행 시간메모리
314661jaaguptamme동굴 (IOI13_cave)C++17
100 / 100
1025 ms760 KiB
#include <bits/stdc++.h> #include "cave.h" int n, s[5001], d[5001], a[5001], b[5001]; void exploreCave(int N) { memset(d, -1, sizeof(d)); n = N; for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { if (d[j] >= 0) s[j] = d[j]; else s[j] = 0; } int w = tryCombination(s); int lo = 0, hi = n; while (lo + 1 < hi) { int mid = (lo + hi) / 2; for (int j = 0; j < n; j++) { if (d[j] >= 0) s[j] = d[j]; else { if (j < mid) s[j] = 1; else s[j] = 0; } } int y = tryCombination(s); if (w == i) { if (w != y) hi = mid; else lo = mid; } else { if (y == i) hi = mid; else lo = mid; } } a[lo] = i; d[lo] = (w == i ? 1 : 0); } answer(d, a); }
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