제출 #616039

#제출 시각아이디문제언어결과실행 시간메모리
616039chirathnirodha커다란 상품 (IOI17_prize)C++17
0 / 100
5 ms2468 KiB
#include "prize.h" #include<bits/stdc++.h> using namespace std; #define PB push_back #define MP make_pair #define P push #define I insert #define F first #define S second vector<pair<int,int> > v; int sum[200000]; void query(int i){ vector<int> tv=ask(i); v[i]={tv[0],tv[1]}; sum[i]=v[i].F+v[i].S; return; } int find_best(int n) { int lol=0; for(int i=0;i<n;i++)v.PB(MP(-1,-1)); for(int i=0;i<500;i++){ query(i); if(sum[i]==0)return i; lol=max(lol,sum[i]); } for(int i=0;i<n;i++){ if(v[i].F==-1)query(i); if(sum[i]==0)return i; if(sum[i]!=lol)continue; int l=i,r=n-1; while(l<=r){ int m=(l+r)/2; if(v[m].F==-1)query(m); if(sum[m]==0)return i; if(v[m]==v[i]){ l=m+1; i=m; } else r=m-1; } } return 0; }
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