Submission #566520

#	Time	Username	Problem	Language	Result	Execution time	Memory
566520		Siffer	The Big Prize (IOI17_prize)	C++14	20 / 100	1 ms	296 KiB

prize

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

int find_best(int n) {
	if(ask(0)[1]==0) return 0;
	vector<int> s, as;
	int a = 1;
	int b = 1;
	while(b <= n) {
		s.push_back(a);
		as.push_back(b);
		a = a*a + 1;
		b += a;
	}
	int k = 0;
	int p = 0; for(; (1<<(p+1)) <= n; p++);
	for(int i = p; ~i; i--) {
		int l = k+(1<<i);
		if(l < n && ask(l)[1]) k = l;
	}
	return k+1;
}

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