Submission #104414

#	Time	Username	Problem	Language	Result	Execution time	Memory
104414		Badral	The Big Prize (IOI17_prize)	C++17	20 / 100	4 ms	512 KiB

prize

#include<bits/stdc++.h>
#include "prize.h"
using namespace std;
int can(int k) {
	vector<int> cer = ask(k);
	if(cer[0] == 0 && cer[1] == 0) return 2;
	return (cer[0] == 0);
}

int find_best(int n) {
  int kk = -1;
	for(int i = n/2; i >= 1; i /= 2) {
		while(kk + i <= n) {
			int p = can(i+kk);
			if(p == 2) return (i + kk);
			if(p == 1) 
				kk += i;
			else break;
		}
	}
	return kk;
}

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