Submission #1023928

#	Time	Username	Problem	Language	Result	Execution time	Memory
1023928		Andrey	The Big Prize (IOI17_prize)	C++14	20 / 100	54 ms	348 KiB

prize

#include "prize.h"
#include<bits/stdc++.h>
using namespace std;

int ans = -1;

void calc(int l, int r) {
	if(l > r) {
		return;
	}
	int m = (l+r)/2;
	vector<int> haha = ask(m);
	if(haha[0]+haha[1] == 0) {
		ans = m;
		return;
	}
	if(l == r) {
		return;
	}
	if(haha[0] > 0 && ans == -1) {
		calc(l,m-1);
	}
	if(haha[1] > 0 && ans == -1) {
		calc(m+1,r);
	}
}

int find_best(int n) {
	calc(0,n-1);
	return ans;
}

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