제출 #670986

#제출 시각아이디문제언어결과실행 시간메모리
670986birthdaycake동굴 (IOI13_cave)C++17
0 / 100
249 ms388 KiB
#include<bits/stdc++.h> #include "cave.h" using namespace std; void exploreCave(int n) { int vs[n],val[n],sw[n]; memset(vs, 0, sizeof vs); memset(val, 0, sizeof val); memset(sw, 0, sizeof sw); for(int i = 0; i < n; i++){ int comb = 0; for(int j = 0; j < n; j++){ if(!vs[j]) val[j] = 0; } int x = tryCombination(val); if(x == i) comb = 1; int l = 0, r = n - 1; while(l < r){ int mid = (l + r) / 2; for(int j = l; j <= mid; j++){ if(!vs[j]) val[j] = comb; } for(int j = 0; j < mid; j++){ if(!vs[j]) val[j] = !comb; } for(int j = mid + 1; j < n; j++){ if(!vs[j]) val[j] = !comb; } int x = tryCombination(val); if(x == i){ l = mid + 1; }else{ r = mid; } } val[r] = comb; sw[r] = i; vs[r] = 1; } answer(val, sw); }
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