Submission #101938

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
101938	2019-03-21T07:03:55 Z	joylintp	The Big Prize (IOI17_prize)	C++17	Compilation error	0 ms	0 KB

prize

#include<bits/stdc++.h>
#define INF 2147483647

using namespace std;

int find_best(int n)
{
    int l = -1, r = n;
    vector<int> res = {INF, INF};
    while (1)
    {
        int tmp = (l + r) / 2;
        res = ask(tmp);
        if (res[0] > res[1])
            r = tmp;
        else if (res[1] > res[0])
            l = tmp;
        else
            return (l + r) / 2;
    }
}

Compilation message

prize.cpp: In function 'int find_best(int)':
prize.cpp:13:15: error: 'ask' was not declared in this scope
         res = ask(tmp);
               ^~~