제출 #96310

#제출 시각아이디문제언어결과실행 시간메모리
96310figter001커다란 상품 (IOI17_prize)C++14
0 / 100
95 ms1152 KiB
#include "prize.h" #include <bits/stdc++.h> using namespace std; typedef long long ll; const int maxn = 2e5+50; int l,r,dp[maxn],ans,n; void qu(int a){ if(dp[a])return; dp[a] = 1; vector<int> res = ask(a); if(res[0] + res[1] == 0){ ans = a; } if(res[0] > res[1]){ l = 0; r = a - 1; }else{ l = a + 1; r = n - 1; } } int find_best(int N) { srand(time(0)); n = N; l=0;r=n-1; ans = -1; while(1){ int a = l + (rand() % (r-l+1)); qu(a); if(ans != -1)return ans; } }
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