제출 #566528

#제출 시각아이디문제언어결과실행 시간메모리
566528sofapuden커다란 상품 (IOI17_prize)C++14
20 / 100
672 ms1048576 KiB
#include "prize.h" #include<bits/stdc++.h> using namespace std; vector<vector<int>> M; vector<int> que(int x){ if(M[x].size())return M[x]; return M[x] = ask(x); } int f(int l, int r){ int m = (l+r)/2; vector<int> v = que(m); if(v[0] == 0 && v[1] == 0)return m; if(l == r)return -1; if(v[1] > v[0]){ int x = f(m+1,r); if(x != -1)return x; } return f(l,m-1); } int find_best(int n) { M.resize(n); return f(0,n-1); }
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