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Submission #62787

# Submission time Handle Problem Language Result Execution time Memory
62787 2018-07-30T04:08:16 Z tmwilliamlin168 Match (CEOI16_match) C++14
100 / 100
 30 ms 10984 KB 
#include <bits/stdc++.h>
using namespace std;

const int mxN=1e5;
string s, a;
int n, st[mxN+1], c[mxN+1][26], p[mxN+1], ts=1;
vector<int> occ[mxN+1];

inline int gc(int i, int j) {
	if(!c[i][j]) {
		c[i][j]=ts++;
		p[c[i][j]]=i;
	}
	return c[i][j];
}

void rec(int l, int r) {
	if(l>=r)
		return;
	int m=*--upper_bound(occ[st[l+1]].begin(), occ[st[l+1]].end(), r-1);
	a[l]='(';
	a[m]=')';
	rec(l+1, m);
	rec(m+1, r);
}

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> s;
	n=s.size();
	occ[0].push_back(0);
	for(int i=0, j=0; i<n; ++i) {
		if(j&&s[occ[p[j]].back()]==s[i])
			j=p[j];
		else
			j=gc(j, s[i]-'a');
		st[i+1]=j;
		occ[j].push_back(i+1);
	}
	if(occ[0].back()!=n) {
		cout << -1;
		return 0;
	}
	a.resize(n);
	rec(0, n);
	cout << a;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 2648 KB Output is correct
2 Correct 5 ms 2840 KB Output is correct
3 Correct 4 ms 2840 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 2648 KB Output is correct
2 Correct 5 ms 2840 KB Output is correct
3 Correct 4 ms 2840 KB Output is correct
4 Correct 6 ms 2904 KB Output is correct
5 Correct 6 ms 2952 KB Output is correct
6 Correct 6 ms 3016 KB Output is correct
7 Correct 6 ms 3256 KB Output is correct

Subtask #3
63.0 / 63.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 2648 KB Output is correct
2 Correct 5 ms 2840 KB Output is correct
3 Correct 4 ms 2840 KB Output is correct
4 Correct 6 ms 2904 KB Output is correct
5 Correct 6 ms 2952 KB Output is correct
6 Correct 6 ms 3016 KB Output is correct
7 Correct 6 ms 3256 KB Output is correct
8 Correct 6 ms 3420 KB Output is correct
9 Correct 7 ms 3572 KB Output is correct
10 Correct 9 ms 3660 KB Output is correct
11 Correct 7 ms 3712 KB Output is correct
12 Correct 16 ms 7980 KB Output is correct
13 Correct 18 ms 8428 KB Output is correct
14 Correct 19 ms 9000 KB Output is correct
15 Correct 13 ms 9000 KB Output is correct
16 Correct 14 ms 9000 KB Output is correct
17 Correct 20 ms 9000 KB Output is correct
18 Correct 12 ms 9000 KB Output is correct
19 Correct 30 ms 10736 KB Output is correct
20 Correct 22 ms 10736 KB Output is correct
21 Correct 25 ms 10984 KB Output is correct