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Submission #225352

# Submission time Handle Problem Language Result Execution time Memory
225352 2020-04-20T11:11:17 Z brcode Match (CEOI16_match) C++14
100 / 100
 39 ms 13432 KB 
#include <iostream>
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1e6+5;
   string s;
   int dp[MAXN][30];
   char ans[MAXN];
void solve(int l,int r){
    if(l>r){
        return;
    }
    int mid = dp[r][s[l]-'a'];
    if(l>=mid){
        cout<<-1<<endl;
        exit(0);
    }
    ans[l] = '(';
    ans[mid] = ')';
    solve(l+1,mid-1);
    solve(mid+1,r);
}
int main() {
 
    cin>>s;
    int n = s.length();
    for(int i=0;i<n;i++){
        for(int j=0;j<26;j++){
            if(s[i]==j+'a'){
                dp[i][j] = i;
            }else if(i && dp[i-1][s[i]-'a']>0){
                dp[i][j] = dp[dp[i-1][s[i]-'a']-1][j];
            }
        }
    }
    solve(0,n-1);
    for(int i=0;i<n;i++){
        cout<<ans[i];
    }
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 512 KB Output is correct
5 Correct 5 ms 512 KB Output is correct
6 Correct 5 ms 512 KB Output is correct
7 Correct 5 ms 640 KB Output is correct

Subtask #3
63.0 / 63.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 512 KB Output is correct
5 Correct 5 ms 512 KB Output is correct
6 Correct 5 ms 512 KB Output is correct
7 Correct 5 ms 640 KB Output is correct
8 Correct 6 ms 1152 KB Output is correct
9 Correct 6 ms 1280 KB Output is correct
10 Correct 7 ms 1280 KB Output is correct
11 Correct 6 ms 1280 KB Output is correct
12 Correct 17 ms 8192 KB Output is correct
13 Correct 18 ms 8960 KB Output is correct
14 Correct 22 ms 9600 KB Output is correct
15 Correct 26 ms 11136 KB Output is correct
16 Correct 21 ms 11136 KB Output is correct
17 Correct 26 ms 11768 KB Output is correct
18 Correct 24 ms 11776 KB Output is correct
19 Correct 32 ms 12544 KB Output is correct
20 Correct 18 ms 8320 KB Output is correct
21 Correct 39 ms 13432 KB Output is correct