oj.uz

Submission #59746

# Submission time Handle Problem Language Result Execution time Memory
59746 2018-07-23T03:43:18 Z model_code parentrises (BOI18_parentrises) C++17
50 / 100
 224 ms 8732 KB 
#include <bits/stdc++.h>

using namespace std;

string solve(const string &test) {
	const int N = test.size();

	string  redMask(N, ' ');
	string blueMask(N, ' ');

	vector <int> redStk;
	queue <int> redOpened;
	for (int i = 0; i < N; ++ i) {
		const char ch = test[i];
		if (ch == '(') {
			redMask[i] = 'R';
			redStk.push_back(i);
			redOpened.push(i);
		}
		else if (ch == ')') {
			if (!redStk.empty()) {
				redMask[i] = 'R';
				redStk.pop_back();
			}
			else if (redOpened.empty())
				return "impossible";
			else {
				blueMask[i] = 'B';
				blueMask[redOpened.front()] = 'B';
				redOpened.pop();
			}
		}
	}

	reverse(redStk.begin(), redStk.end());
	stack <int> redClosed;

	int i = N - 1;
	for (const int pos: redStk) {
		while (i > pos) {
			if (test[i] == ')')
				redClosed.push(i);
			-- i;
		}
		if (redClosed.empty())
			return "impossible";
		else {
			redMask[pos]  = ' ';
			blueMask[pos] = 'B';

			const int transformToGreen = redClosed.top();
			redClosed.pop();
			blueMask[transformToGreen] = 'B';
		}
	}

	string coloring;
	for (i = 0; i < N; ++ i)
		if (redMask[i] == 'R' && blueMask[i] == 'B')
			coloring += 'G';
		else if (redMask[i] == 'R')
			coloring += 'R';
		else if (blueMask[i] == 'B')
			coloring += 'B';
		else
			assert(0);
	return coloring;
}

int main() {
	int type; cin >> type;
	if (type == 2) {
            return 0;
        }

	int T;
	cin >> T;
	while (T --) {
		// Read test
		string str;
		cin >> str;
		
		// Check validity
		assert(1 <= str.size() && str.size() <= 1000000);
		for (auto it: str)
			assert(it == '(' || it == ')');
		cout << solve(str) << '\n';
	}
	return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 3 ms 488 KB Output is correct
3 Correct 3 ms 520 KB Output is correct
4 Correct 2 ms 520 KB Output is correct
5 Correct 2 ms 520 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 540 KB Output is correct
2 Correct 3 ms 540 KB Output is correct
3 Correct 2 ms 596 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 2 ms 596 KB Output is correct

Subtask #3
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 540 KB Output is correct
2 Correct 3 ms 540 KB Output is correct
3 Correct 2 ms 596 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 3 ms 596 KB Output is correct
7 Correct 3 ms 620 KB Output is correct
8 Correct 3 ms 620 KB Output is correct
9 Correct 3 ms 620 KB Output is correct
10 Correct 3 ms 620 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 540 KB Output is correct
2 Correct 3 ms 540 KB Output is correct
3 Correct 2 ms 596 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 3 ms 596 KB Output is correct
7 Correct 3 ms 620 KB Output is correct
8 Correct 3 ms 620 KB Output is correct
9 Correct 3 ms 620 KB Output is correct
10 Correct 3 ms 620 KB Output is correct
11 Correct 6 ms 620 KB Output is correct
12 Correct 4 ms 620 KB Output is correct
13 Correct 3 ms 636 KB Output is correct
14 Correct 4 ms 748 KB Output is correct
15 Correct 3 ms 748 KB Output is correct
16 Correct 35 ms 748 KB Output is correct
17 Correct 16 ms 1452 KB Output is correct
18 Correct 12 ms 1452 KB Output is correct
19 Correct 9 ms 1452 KB Output is correct
20 Correct 8 ms 1580 KB Output is correct
21 Correct 224 ms 1580 KB Output is correct
22 Correct 87 ms 8732 KB Output is correct
23 Correct 60 ms 8732 KB Output is correct
24 Correct 61 ms 8732 KB Output is correct
25 Correct 65 ms 8732 KB Output is correct

Subtask #5
0 / 6.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 8732 KB Unexpected end of file - int32 expected

Subtask #6
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 8732 KB Unexpected end of file - int32 expected

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 8732 KB Unexpected end of file - int32 expected