제출 #797386

#제출 시각아이디문제언어결과실행 시간메모리
797386WongChun1234커다란 상품 (IOI17_prize)C++14
20 / 100
1 ms336 KiB
#include "prize.h"
#include<bits/stdc++.h>
using namespace std;
int l,r,mid;

int find_best(int n) {
	l=0,r=n-1;
	while (l<r){
		mid=(l+r)/2;
		vector<int> res=ask(mid);
		if (res[0]) r=mid-1;
		else if (res[1]) l=mid+1;
		else return mid;
	}
	return max(0,min(l,n-1));
}
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