oj.uz

답안 #609559

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
609559 2022-07-27T17:17:32 Z Drew_ 괄호 문자열 (CEOI16_match) C++17
100 / 100
 12 ms 11480 KB 
#include <bits/stdc++.h>
using namespace std;

#define pb push_back
#define size(x) (int)x.size()

#define Int long long

using ll = long long;

const int MAX = 1e5 + 69;
const int ALPHA = 26;

int dp[MAX][ALPHA];
int main()
{
	ios :: sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);

	string s;
	cin >> s;

	vector<int> sk;
	for (char c : s)
	{
		if (!sk.empty() && sk.back() == c)
			sk.pop_back();
		else sk.pb(c);
	}

	if (!sk.empty())
	{
		cout << -1 << '\n';
		return 0;
	}

	memset(dp, 0, sizeof(dp));
	dp[0][s[0] - 'a'] = 0;
	for (int i = 1; i < size(s); ++i)
	{
		for (int j = 0; j < ALPHA; ++j)
		{
			int lst = dp[i-1][s[i] - 'a'];

			if (s[i] == 'a' + j) dp[i][j] = i;
			else if (lst > 0) dp[i][j] = dp[lst - 1][j];
		}
	}

	const auto solve = [&](const auto &self, int l, int r) -> void
	{
		if (l > r)
			return;

		int tmp = dp[r][s[l] - 'a'];
		s[l] = '(', s[tmp] = ')';
		self(self, l+1, tmp-1);
		self(self, tmp+1, r);
	};
	solve(solve, 0, size(s)-1);

	cout << s << '\n';
	return 0;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 10452 KB Output is correct
2 Correct 4 ms 10452 KB Output is correct
3 Correct 0 ms 212 KB Output is correct

Subtask #2
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 10452 KB Output is correct
2 Correct 4 ms 10452 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 5 ms 10452 KB Output is correct
5 Correct 4 ms 10452 KB Output is correct
6 Correct 4 ms 10452 KB Output is correct
7 Correct 4 ms 10452 KB Output is correct

Subtask #3
63.0 / 63.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 10452 KB Output is correct
2 Correct 4 ms 10452 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 5 ms 10452 KB Output is correct
5 Correct 4 ms 10452 KB Output is correct
6 Correct 4 ms 10452 KB Output is correct
7 Correct 4 ms 10452 KB Output is correct
8 Correct 5 ms 10452 KB Output is correct
9 Correct 5 ms 10452 KB Output is correct
10 Correct 5 ms 10452 KB Output is correct
11 Correct 5 ms 10580 KB Output is correct
12 Correct 9 ms 11100 KB Output is correct
13 Correct 8 ms 11096 KB Output is correct
14 Correct 10 ms 11348 KB Output is correct
15 Correct 10 ms 11424 KB Output is correct
16 Correct 10 ms 11476 KB Output is correct
17 Correct 11 ms 11480 KB Output is correct
18 Correct 12 ms 11092 KB Output is correct
19 Correct 12 ms 11280 KB Output is correct
20 Correct 12 ms 11224 KB Output is correct
21 Correct 12 ms 11476 KB Output is correct