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Submission #341618

# Submission time Handle Problem Language Result Execution time Memory
341618 2020-12-30T09:03:53 Z phathnv Match (CEOI16_match) C++11
37 / 100
 2000 ms 748 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const int N = 1e5 + 1;
const int AL = 26;

int n, answer[N];
string s;

void readInput(){
    cin >> s;
    n = s.size();
    s = '*' + s;
}

bool check(){
    stack <int> st;
    for(int i = 1; i <= n; i++)
        if (answer[i] != -1){
            if (answer[i] == 1)
                st.push(i);
            else if (!st.empty() && s[st.top()] == s[i])
                st.pop();
            else
                return 0;
        } else {
            if (!st.empty() && s[st.top()] == s[i])
                st.pop();
            else
                st.push(i);
        }
    return st.empty();
}

void solve(){
    for(int i = 1; i <= n; i++)
        answer[i] = -1;
    if (!check()){
        cout << -1;
        return;
    }
    for(int i = 1; i <= n; i++){
        answer[i] = 1;
        answer[i] = check();
    }
    for(int i = 1; i <= n; i++)
        cout << (answer[i] == 1? '(' : ')');
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    readInput();
    solve();
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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 4 ms 492 KB Output is correct
5 Correct 4 ms 364 KB Output is correct
6 Correct 9 ms 364 KB Output is correct
7 Correct 18 ms 364 KB Output is correct

Subtask #3
0 / 63.0

# Verdict Execution time Memory 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 4 ms 492 KB Output is correct
5 Correct 4 ms 364 KB Output is correct
6 Correct 9 ms 364 KB Output is correct
7 Correct 18 ms 364 KB Output is correct
8 Correct 218 ms 364 KB Output is correct
9 Correct 253 ms 492 KB Output is correct
10 Correct 227 ms 620 KB Output is correct
11 Correct 196 ms 620 KB Output is correct
12 Execution timed out 2083 ms 748 KB Time limit exceeded
13 Halted 0 ms 0 KB -