oj.uz

답안 #536308

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
536308 2022-03-12T19:28:33 Z jerzyk 괄호 문자열 (CEOI16_match) C++17
100 / 100
 15 ms 12620 KB 
#include<bits/stdc++.h>

using namespace std;
const int N = 100 * 1000 + 7;
int dp[26][N];
string s, w;
stack<char> st;

void Ans(int l, int r)
{
    if(l >= r) 
        return;
    int k = dp[s[l] - 'a'][r];
    //cout << l << " " << r << " " << k << " " << w << "\n";
    w[l] = '('; w[k] = ')';
    Ans(l + 1, k - 1); Ans(k + 1, r);
}

void Solve()
{
    int n, x;
    cin >> s; n = s.size();
    for(int i = 1; i <= n; ++i)
        w.push_back('.');
    for(int i = 0; i < n; ++i)
    {
        if(st.size() > 0 && st.top() == s[i])
            st.pop();
        else
            st.push(s[i]);
    }
    if(st.size())
    {
        cout << -1 << "\n"; return;
    }
    for(int i = 0; i < n; ++i)
    {
        for(int j = 0; j < 26; ++j)
        {
            if(j == s[i] - 'a')
                dp[j][i] = i;
            else if(i != 0)
            {
                x = dp[s[i] - 'a'][i - 1];
                if(x != 0)
                    dp[j][i] = dp[j][x - 1];
            }
        }
    }
    Ans(0, n - 1);
    cout << w << "\n";
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    Solve();

    return 0;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 332 KB Output is correct

Subtask #2
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 464 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 596 KB Output is correct

Subtask #3
63.0 / 63.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 464 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 596 KB Output is correct
8 Correct 2 ms 1108 KB Output is correct
9 Correct 1 ms 1236 KB Output is correct
10 Correct 1 ms 1236 KB Output is correct
11 Correct 1 ms 1364 KB Output is correct
12 Correct 9 ms 7764 KB Output is correct
13 Correct 10 ms 8532 KB Output is correct
14 Correct 12 ms 9328 KB Output is correct
15 Correct 11 ms 10964 KB Output is correct
16 Correct 12 ms 10964 KB Output is correct
17 Correct 12 ms 11544 KB Output is correct
18 Correct 11 ms 10836 KB Output is correct
19 Correct 13 ms 11780 KB Output is correct
20 Correct 10 ms 8020 KB Output is correct
21 Correct 15 ms 12620 KB Output is correct