oj.uz

Submission #781269

# Submission time Handle Problem Language Result Execution time Memory
781269 2023-07-13T01:35:11 Z makanhulia Zagrade (COI20_zagrade) C++17
0 / 100
 668 ms 1440 KB 
# include <bits/stdc++.h>
# define int long long
# define vi vector<int>
# define pb push_back
# define pii pair<int, int>
# define fi first
# define se second
# define endl '\n'

using namespace std;

bool ask(int a, int b) {
    cout << "? " << a << " " << b << endl << flush;
    int ret; cin >> ret;
    return ret;
}

void solve() {
    int n, q; 
    cin >> n >> q;
    vector<pii> v;
    for(int i=1; i<n; i++) {
        if(ask(i, i+1)) {
            v.pb({i, i+1});
        }
    }
    int last=1;
    string ans="";
    for(pii i : v) {
        int cnt=0;
        for(int j=last; j<=i.fi; j++) {
            ans+='(';
            cnt++;
        }
        for(int j=1; j<=cnt; j++) {
            ans+=')';
        }
        last+=(2*cnt);
    }
    cout << "! " << ans << endl << flush;
}
 
signed main() {
    solve();
}

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 8 ms 300 KB Output is correct
3 Incorrect 9 ms 208 KB Mismatch at position 12. Expected (, found )
4 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB Unexpected end of file - token expected
2 Halted 0 ms 0 KB -

Subtask #3
0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 668 ms 1440 KB Output is correct
3 Incorrect 640 ms 1048 KB Mismatch at position 17. Expected (, found )
4 Halted 0 ms 0 KB -

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB Unexpected end of file - token expected
2 Halted 0 ms 0 KB -