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Submission #608727

# Submission time Handle Problem Language Result Execution time Memory
608727 2022-07-27T09:40:55 Z EJOI2019Andrew Match (CEOI16_match) C++14
37 / 100
 7 ms 340 KB 
#include <bits/stdc++.h>
using namespace std;
 
const int MAXN = 2005;
 
int N;
char s[MAXN];
char ans[MAXN];
 
bool ava(stack<char> st, int x) {
	for(int i = x; i < N; i++) {
		if(!st.empty() && s[i] == st.top()) st.pop();
		else st.push(s[i]);
	}
	return st.empty();
}
 
int main() {
	cin >> s;
	for(N = 0; s[N]; N++);
 
	stack<char> st;
	for(int i = 0; i < N; i++) {
		st.push(s[i]);
		if(ava(st, i + 1)) ans[i] = '(';
		else {
			ans[i] = ')';
			st.pop();
			if(st.empty() || st.top() != s[i]) {
				cout << -1;
				return 0;
			}
			st.pop();
		}
	}
	if(st.empty()) 
      for(int i = 0; i < N; i++) cout << ans[i];
	else cout << -1;
	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 2 ms 304 KB Output is correct
5 Correct 2 ms 212 KB Output is correct
6 Correct 4 ms 304 KB Output is correct
7 Correct 7 ms 212 KB Output is correct

Subtask #3
0 / 63.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 2 ms 304 KB Output is correct
5 Correct 2 ms 212 KB Output is correct
6 Correct 4 ms 304 KB Output is correct
7 Correct 7 ms 212 KB Output is correct
8 Runtime error 1 ms 340 KB Execution killed with signal 11
9 Halted 0 ms 0 KB -