oj.uz

Submission #1030323

# Submission time Handle Problem Language Result Execution time Memory
1030323 2024-07-22T02:39:39 Z thinknoexit Colors (BOI20_colors) C++17
0 / 100
 1 ms 344 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
bool ask(ll x) {
    cout << "? " << x << endl;
    cin >> x; return x;
}
int main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    ll n;
    cin >> n;
    ask(1);
    ll l = 1, r = n;
    while (l < r) {
        ll mid = (l + r) / 2;
        if (ask(mid + 1)) r = mid;
        else l = mid + 1;
        ask(1);
    }
    cout << "= " << l << endl;
    return 0;
}

Subtask #1
0 / 9.0

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