oj.uz

Submission #509762

# Submission time Handle Problem Language Result Execution time Memory
509762 2022-01-14T09:31:01 Z tht2005 Guess the number (BOI20_guess) C++14
0 / 100
 0 ms 200 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
int main() {
  	ios::sync_with_stdio(false);
  	cin.tie(NULL); cout.tie(NULL);
    int l = 1, r;
    cin >> r;
    while(l <= r) {
        int m = (l + r) >> 1;
        cout << '?' << ' ' << m << endl;
        int x;
        cin >> x;
        if(!x) {
            cout << '=' << ' ' << m << endl;
            break;
        }
        if(x < 0) r = m - 1;
        else l = m + 1;
    }
    return 0;
}

Subtask #1
0 / 29.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 200 KB Unexpected end of file - token expected
2 Halted 0 ms 0 KB -

Subtask #2
0 / 71.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 200 KB Unexpected end of file - token expected
2 Halted 0 ms 0 KB -