Submission #566535

#	Time	Username	Problem	Language	Result	Execution time	Memory
566535		sofapuden	The Big Prize (IOI17_prize)	C++14	20 / 100	61 ms	296 KiB

prize

#include "prize.h"
#include<bits/stdc++.h>

using namespace std;

int ll = 0, rr = 0;

int f(int l, int r){
	if(l > r)return -1;
	int m = (l+r)/2;
	vector<int> v = ask(m);
	if(v[0] == 0)ll = l;
	if(v[1] == 1)rr = r;
	if(v[0] == 0 && v[1] == 0)return m;
	if(v[1] > v[0]){
		int x = f(max(m+1,ll),min(r,rr));
		if(x != -1)return x;
	}
	return f(max(l,ll),min(m-1,rr));
}

int find_best(int n) {
	rr = n-1;
	return f(0,n-1);
}

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