Submission #641568

#	Time	Username	Problem	Language	Result	Execution time	Memory
641568		devariaota	Zagrade (COI20_zagrade)	C++17	0 / 100	670 ms	700 KiB

zagrade

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
 
int main() 
{
    cin.tie(0); ios_base::sync_with_stdio(0);

    int n, q;
    cin >> n >> q;

    vector<int> ans(n, -1);
    for(int i = 0; i < n - 1; i++) {
        cout << "? " << i + 1 << " " << i + 2 << endl;
        int x; cin >> x;
        if(x) {
            ans[i] = 1;
            ans[i + 1] = 0;
            i++;
        }
    }

    cout << "! ";
    for(int i = 0; i < n; i++) {
        if(ans[i] == -1) {
            int cnt = 0;
            int j = i;
            for(; ans[j] == -1; j++) {
                ans[j] = 1;
                cnt++;
            }
            j += 2;
            for(; cnt > 0; j++, cnt--) {
                ans[j] = 0;
            }
        }
        cout << (ans[i] ? '(' : ')');
    }
    cout << endl;
}

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