oj.uz

Submission #873327

# Submission time Handle Problem Language Result Execution time Memory
873327 2023-11-14T20:30:26 Z PagodePaiva Colors (BOI20_colors) C++17
0 / 100
 0 ms 344 KB 
#include<bits/stdc++.h>

using namespace std;

bool query(int x){
 int p;
    cout << "? " << 1 << '\n';
    cout << flush;
    cin >> p;

    cout << "? " << x+1 << '\n';
    cout << flush;
    int t;
    cin >> t;

    if(t == 1) return true;
    return false;
}

int main(){
    int n;
    cin >> n;

    int l = 1, r = n;

    while(l < r){
        if(r == l+1){
            if(query(l)){
                r = l;
            }
            else{
                l = r;
            }
            break;
        }
        int mid = (l+r)/2;

        if(query(mid)){
            r = mid;
        }
        else{
            l = mid+1;
        }
    }

    cout << "= " << l << '\n';

}

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Hair color 1 was used multiple times
2 Halted 0 ms 0 KB -

Subtask #2
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Hair color 1 was used multiple times
2 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Hair color 1 was used multiple times
2 Halted 0 ms 0 KB -

Subtask #4
0 / 24.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Hair color 1 was used multiple times
2 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Hair color 1 was used multiple times
2 Halted 0 ms 0 KB -