Submission #105783

#	Time	Username	Problem	Language	Result	Execution time	Memory
105783		RezwanArefin01	The Big Prize (IOI17_prize)	C++17	20 / 100	3 ms	512 KiB

prize

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

int find_best(int n) {
	int lo = 0, hi = n - 1;
	while(lo <= hi) {
		int mid = lo + hi >> 1; 
		vector<int> a = ask(mid);
		if(a[0] + a[1] == 0) return mid; 
		if(a[0]) hi = mid - 1; 
		else lo = mid + 1; 
	}
	return -1; 
}

Compilation message (stderr)

prize.cpp: In function 'int find_best(int)':
prize.cpp:8:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int mid = lo + hi >> 1; 
             ~~~^~~~

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