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답안 #339695

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
339695 2020-12-25T23:41:27 Z couplefire 괄호 문자열 (CEOI16_match) C++17
37 / 100
 2000 ms 19180 KB 
#include <bits/stdc++.h>
using namespace std;

int n; string s;
string ans;

bool solve(int l, int r){
    if(l == r+1) return 1;
    if(s[l] == s[r]){
        ans[l] = '('; ans[r] = ')';
        return solve(l+1, r-1);
    }
    stack<int> st; int good = -1;
    for(int i = l; i<=r; i++){
        if(!st.empty() && st.top() == s[i]-'a') st.pop();
        else st.push(s[i]-'a');
        if(st.empty() && s[i] == s[l]) good = i;
    }
    if(good == -1) return false;
    ans[l] = '('; ans[good] = ')';
    return solve(l+1, good-1)&&solve(good+1, r);
}

int main(){
    // freopen("match.in", "r", stdin);
    // freopen("match.out", "w", stdout);
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cin >> s; n = s.length(); ans.resize(n);
    if(!solve(0, n-1)) cout << -1 << endl;
    else cout << ans << endl;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct

Subtask #2
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct

Subtask #3
0 / 63.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 3 ms 492 KB Output is correct
9 Correct 15 ms 1388 KB Output is correct
10 Correct 7 ms 1004 KB Output is correct
11 Correct 4 ms 1132 KB Output is correct
12 Correct 138 ms 6120 KB Output is correct
13 Correct 64 ms 5452 KB Output is correct
14 Correct 948 ms 19180 KB Output is correct
15 Correct 13 ms 7276 KB Output is correct
16 Correct 13 ms 7276 KB Output is correct
17 Correct 126 ms 8044 KB Output is correct
18 Correct 72 ms 3564 KB Output is correct
19 Correct 1562 ms 18412 KB Output is correct
20 Correct 628 ms 15072 KB Output is correct
21 Execution timed out 2084 ms 16392 KB Time limit exceeded