Submission #117268

#	Time	Username	Problem	Language	Result	Execution time	Memory
117268		WongHokFong_cpp	The Big Prize (IOI17_prize)	C++14	0 / 100	2 ms	504 KiB

prize

#include <iostream>
#include "prize.h"
#include <vector>
using namespace std;
vector <int> res;
int find_best(int n)
{
	int l=0,r=n-1;
	do
	{
		int mid=(l+r)/2;
		res=ask(mid);
		if (res[1]>0) l=mid;
		else if (res[2]>0) r=mid;
		else return mid; 
	}
	while (l<r);
    return l;
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 80