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Submission #930262

# Submission time Handle Problem Language Result Execution time Memory
930262 2024-02-19T08:21:04 Z ttamx Match (CEOI16_match) C++14
100 / 100
 8 ms 14172 KB 
#include<bits/stdc++.h>

using namespace std;

const int N=1e5+5;

int n;
int dp[N][30];
string t,ans;
stack<char> s;

void solve(int l,int r){
    if(l>r)return;
    int m=dp[r][t[l-1]-'a'];
    ans[m-1]=')';
    solve(l+1,m-1);
    solve(m+1,r);
}

int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    cin >> t;
    int n=t.size();
    for(auto x:t){
        if(!s.empty()&&x==s.top())s.pop();
        else s.emplace(x);
    }
    if(!s.empty())cout << -1,exit(0);
    ans.assign(n,'(');
    for(int i=1;i<=n;i++){
        int p=dp[i-1][t[i-1]-'a'];
        for(int j=0;j<26;j++)if(p>1){
            dp[i][j]=t[p-2]=='a'+j?p-1:dp[p-1][j];
        }
        dp[i][t[i-1]-'a']=i;
    }
    solve(1,n);
    cout << ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct

Subtask #3
63.0 / 63.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 1 ms 2648 KB Output is correct
12 Correct 6 ms 9948 KB Output is correct
13 Correct 4 ms 10076 KB Output is correct
14 Correct 5 ms 10332 KB Output is correct
15 Correct 6 ms 13148 KB Output is correct
16 Correct 6 ms 13148 KB Output is correct
17 Correct 8 ms 13148 KB Output is correct
18 Correct 7 ms 12184 KB Output is correct
19 Correct 7 ms 13148 KB Output is correct
20 Correct 4 ms 10332 KB Output is correct
21 Correct 8 ms 14172 KB Output is correct