제출 #991091

#제출 시각아이디문제언어결과실행 시간메모리
991091Muhammet동굴 (IOI13_cave)C++17
100 / 100
468 ms600 KiB
#include <bits/stdc++.h> #include "cave.h" using namespace std; void exploreCave(int n) { int s[n], a[n], b[n], vis[n]; for(int i = 0; i < n; i++) vis[i] = a[i] = b[i] = 0; for(int i = 0; i < n; i++){ int l = 0, r = n-1, k = 0; int x = tryCombination(a); while(l <= r){ int md = (l + r) / 2; for(int j = 0; j < n; j++){ if(vis[j] == 0){ if(j >= l and j <= md) s[j] = 1; else s[j] = 0; } else { s[j] = a[j]; } } int y = tryCombination(s); bool tr = 0; if(x == i){ if(y != i){ tr = 1; } } else { if(y == i){ tr = 1; } } if(tr == 1){ r = md-1; k = md; } else { l = md+1; } } vis[k] = 1; a[k] = (x == i); b[k] = i; } answer(a, b); return; }
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