Submission #1154220

#	Time	Username	Problem	Language	Result	Execution time	Memory
1154220		huoi	Zagrade (COI20_zagrade)	C++17	0 / 100	2 ms	436 KiB

zagrade

#include <bits/stdc++.h>

using namespace std;

#define int long long
#define INF 1e18

void solve() {
    int n, q;
    cin >> n >> q;

    string ans = "(";
    for (int i = 1; i < n; i++) {
        cout << "? " << i << " " << i + 1 << endl;
        bool valid; cin >> valid;
        if (valid) ans += ")";
        else ans += ans[i];
    }
    cout << "! " << ans << endl;
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    solve();
    return 0;
}

• Subtask 1: 0 / 14
• Subtask 2: 0 / 7
• Subtask 3: 0 / 57
• Subtask 4: 0 / 22