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Submission #863632

# Submission time Handle Problem Language Result Execution time Memory
863632 2023-10-20T16:14:08 Z Rifal Zagrade (COI20_zagrade) C++14
71 / 100
 478 ms 1324 KB 
#include <bits/stdc++.h>
#include <fstream>
//#define endl '\n'
#define mod 1000000007
#define INF 900000000
//#define cin fin
//#define cout fout
//#define fi first
//#define se second
using namespace std;
//ofstream fout("intel.out");
//ifstream fin("intel.in");

int main()
{
    ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
    int n, q; cin >> n >> q; string ans; stack<int> st;
    for(int i = 1; i <= n; i++) {
        if(st.empty()) {
            st.push(i);
            ans.push_back('(');
        }
        else {
            cout << '?' << ' '  << st.top() << ' ' << i << endl;
            int x; cin >> x; 
            if(x == 1) {
                st.pop();
                ans.push_back(')');
            }
            else {
                st.push(i);
                ans.push_back('(');
            }
        }
    }
    cout << '!' << ' ' << ans << endl;
 return 0;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 3 ms 600 KB Output is correct
3 Correct 5 ms 600 KB Output is correct
4 Correct 7 ms 600 KB Output is correct
5 Correct 5 ms 600 KB Output is correct
6 Correct 3 ms 344 KB Output is correct
7 Correct 4 ms 708 KB Output is correct
8 Correct 3 ms 600 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Mismatch at position 1. Expected ), found (
2 Halted 0 ms 0 KB -

Subtask #3
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 237 ms 1148 KB Output is correct
3 Correct 468 ms 1324 KB Output is correct
4 Correct 437 ms 1288 KB Output is correct
5 Correct 466 ms 1160 KB Output is correct
6 Correct 444 ms 900 KB Output is correct
7 Correct 437 ms 1280 KB Output is correct
8 Correct 478 ms 1128 KB Output is correct

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Mismatch at position 1. Expected ), found (
2 Halted 0 ms 0 KB -