oj.uz

Submission #640221

# Submission time Handle Problem Language Result Execution time Memory
640221 2022-09-14T02:49:03 Z devariaota Zagrade (COI20_zagrade) C++17
71 / 100
 894 ms 712 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<ll> vll;
const ll mod=1e9+7;
const ll maxn=1e5+5;
const int INF=1e9+5;
#define ok ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define fi first
#define se second
#define pb push_back
#define ub upper_bound
#define lb lower_bound
#define endl '\n'
int n, q, bk, ttp, jwb;
stack<int> st;
char ans[maxn];
int main() {
    ok
    cin >> n >> q;
    for(int i=1; i<=n; i++) {
        if(st.empty()) {
            ans[i]='(';
            st.push(i);
            continue;
        }
        cout << "? " << st.top() << " " << i << endl;
        cout.flush();
        cin >> jwb;
        if(jwb==1) {
            ans[i]=')';
            st.pop();
        } else {
            ans[i]='(';
            st.push(i);
        }
    }
    cout << "! ";
    for(int i=1; i<=n; i++) {
        cout << ans[i];
    }
    cout << endl;
    return 0;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 6 ms 208 KB Output is correct
3 Correct 9 ms 208 KB Output is correct
4 Correct 8 ms 208 KB Output is correct
5 Correct 8 ms 208 KB Output is correct
6 Correct 10 ms 208 KB Output is correct
7 Correct 8 ms 208 KB Output is correct
8 Correct 7 ms 208 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 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 208 KB Output is correct
2 Correct 489 ms 516 KB Output is correct
3 Correct 768 ms 712 KB Output is correct
4 Correct 725 ms 480 KB Output is correct
5 Correct 757 ms 472 KB Output is correct
6 Correct 759 ms 408 KB Output is correct
7 Correct 835 ms 700 KB Output is correct
8 Correct 894 ms 600 KB Output is correct

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB Mismatch at position 1. Expected ), found (
2 Halted 0 ms 0 KB -