Submission #1048220

#	Time	Username	Problem	Language	Result	Execution time	Memory
1048220		LittleOrange	The Big Prize (IOI17_prize)	C++17	20 / 100	1 ms	600 KiB

prize

#include "prize.h"
#include<bits/stdc++.h>
using namespace std;
using ll = int;
int find_best(int n) {
	ll l = 0, r = n-1;
	while(l<r){
		ll m = l+r>>1;
		auto o = ask(m);
		if (o[0]+o[1]==0){
			return m;
		}
		if (o[0]){
			r = m-1;
		}else{
			l = m+1;
		}
	}
	return l;
	for(int i = 0; i < n; i++) {
		std::vector<int> res = ask(i);
		if(res[0] + res[1] == 0)
			return i;
	}
	return 0;
}

Compilation message (stderr)

prize.cpp: In function 'int find_best(int)':
prize.cpp:8:11: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
    8 |   ll m = l+r>>1;
      |          ~^~

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