제출 #434235

#제출 시각아이디문제언어결과실행 시간메모리
434235AmineTrabelsi커다란 상품 (IOI17_prize)C++14
20 / 100
1 ms284 KiB
#include "prize.h"
#include <bits/stdc++.h>
using namespace std;

int find_best(int n) {
	// 20 points:
	// 1 diamond
	int low = 0,high = n-1;
	int ans = -1;
	while(low != high){
		int mid = (low+high)/2;
		vector<int> q = ask(mid);
		if(q[0] == 1){
			high = mid-1;
		}else if(q[1] == 1){
			low = mid+1;
		}else{
			ans = mid;
			break;
		}
	}
	return (ans == -1 ? low : ans);
}
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