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Submission #981105

# Submission time Handle Problem Language Result Execution time Memory
981105 2024-05-12T19:42:37 Z Dzadzo Match (CEOI16_match) C++17
100 / 100
 26 ms 26976 KB 
#include <bits/stdc++.h>
#define ll long long
#define int ll
#define pb push_back
#define S second
#define F first
#define pii pair<int,int>
#define vi vector <int>
#define vvi vector <vi>
#define vvvi vector <vvi>
#define vp vector <pii>
#define vvp vector <vp>
#define vb vector <bool>
#define vvb vector <vb>;
#define INF LLONG_MAX
#define MOD 1000000007
#define MAXN 100000
using namespace std;
vvi dp(MAXN+1,vi(26));
string s;
char ans[MAXN+1];
void solve(int l,int r){
	if (l>r)return;
	ans[l]='(';
	int ind=dp[r][s[l]-'a'];
	ans[ind]=')';
	solve(l+1,ind-1);
	solve(ind+1,r);
}
signed main(){	
	ios_base::sync_with_stdio(0),cin.tie(NULL),cout.tie(NULL);
	cin>>s;
	int n=s.size();
	reverse(s.begin(),s.end());
	s+=" ";
	reverse(s.begin(),s.end());
	stack <int> st;
	for (int i=1;i<=n;i++){
		if (!st.empty() && st.top()==s[i]-'a')st.pop();
			else st.push(s[i]-'a');
	}
	if (!st.empty())cout<<-1,exit(0);
	for (int i=1;i<=n;i++){
		dp[i][s[i]-'a']=i;
		if (i==1 || dp[i-1][s[i]-'a']==0)continue;
		for (int j=0;j<26;j++)if (j!=s[i]-'a')dp[i][j]=dp[dp[i-1][s[i]-'a']-1][j];
	}
	solve(1,n);
	for (int i=1;i<=n;i++)cout<<ans[i];
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 24668 KB Output is correct
2 Correct 13 ms 24596 KB Output is correct
3 Correct 17 ms 24668 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 24668 KB Output is correct
2 Correct 13 ms 24596 KB Output is correct
3 Correct 17 ms 24668 KB Output is correct
4 Correct 14 ms 24668 KB Output is correct
5 Correct 13 ms 24668 KB Output is correct
6 Correct 13 ms 24568 KB Output is correct
7 Correct 13 ms 24668 KB Output is correct

Subtask #3
63.0 / 63.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 24668 KB Output is correct
2 Correct 13 ms 24596 KB Output is correct
3 Correct 17 ms 24668 KB Output is correct
4 Correct 14 ms 24668 KB Output is correct
5 Correct 13 ms 24668 KB Output is correct
6 Correct 13 ms 24568 KB Output is correct
7 Correct 13 ms 24668 KB Output is correct
8 Correct 14 ms 24744 KB Output is correct
9 Correct 13 ms 24664 KB Output is correct
10 Correct 14 ms 24668 KB Output is correct
11 Correct 16 ms 24912 KB Output is correct
12 Correct 18 ms 25948 KB Output is correct
13 Correct 20 ms 26108 KB Output is correct
14 Correct 20 ms 26324 KB Output is correct
15 Correct 21 ms 26972 KB Output is correct
16 Correct 20 ms 26972 KB Output is correct
17 Correct 23 ms 26976 KB Output is correct
18 Correct 20 ms 25948 KB Output is correct
19 Correct 22 ms 26204 KB Output is correct
20 Correct 18 ms 26204 KB Output is correct
21 Correct 26 ms 26636 KB Output is correct