oj.uz

Submission #61249

# Submission time Handle Problem Language Result Execution time Memory
61249 2018-07-25T13:54:54 Z Miyukine parentrises (BOI18_parentrises) C++14
50 / 100
 78 ms 3700 KB 
#include <bits/stdc++.h>
using namespace std;
#define FOR(i, a, b) for (int i=(a); i<=(b); ++i)
const int maxn = 1e6 + 5;
typedef pair <int, int> PII;
typedef long long ll;
const int mod = 1e9 + 7;

ll dp[2][305][305];
//dp[length][stacksize in RG][stacksize in RB]
int type, n;
string s;
int stos[1000100], DL = 0;
char arr[1000100];

void solveone()
{
	cin >> s;
	int m = (int)s.size();
	DL = 0;
	for (int i = 0; i < m; ++i)
	{
		if (s[i] == '(') stos[++DL] = i, arr[i] = 'R';
		else
		{
			if (DL > 0) 
			{
				arr[stos[DL]] = 'B';
				arr[i] = 'B';
				DL--;
			}
			else arr[i] = 'R';
		}
	}
	
	int wait = 0;
	for (int i = 0; i < m; ++i)
		if (arr[i] == 'R' && s[i] == '(') ++wait;
		else if (arr[i] == 'B' && s[i] == ')' && wait > 0)
		{
			--wait;
			arr[i] = 'G';
		}
	
	if (wait > 0)
	{
		cout << "impossible\n";
		return;
	}
	wait = 0;
	for (int i = m - 1; i >= 0; --i)
	{
		if (arr[i] == 'R' && s[i] == ')') ++wait;
		else if (arr[i] == 'B' && s[i] == '(' && wait > 0)
		{
			--wait;
			arr[i] = 'G';
		}
	}
	if (wait > 0)
	{
		cout << "impossible\n";
		return;
	}
	
	for (int i = 0; i < m; ++i) cout << arr[i];
	cout << "\n";
}

int main()
{
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	cin >> type;
	if (type == 1)
	{
		cin >> n;
		for (int i=0; i<n; ++i) solveone();
	}
	if (type == 2)
	{
		cin >> n;
		dp[0][0][0] = 1; //one sequence
		for (int i=1; i<=n; ++i)
		{
			FOR(j, 0, n)
				FOR(k, 0, n) dp[i & 1][j][k] = 0;
			
			
			//FOR(j, 0, n)
				//FOR(k, 0, n) dp[(i & 1) ^ 1][j][k]
		}
	}
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 248 KB Output is correct
2 Correct 2 ms 356 KB Output is correct
3 Correct 2 ms 392 KB Output is correct
4 Correct 3 ms 468 KB Output is correct
5 Correct 3 ms 468 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 468 KB Output is correct
2 Correct 3 ms 468 KB Output is correct
3 Correct 3 ms 544 KB Output is correct
4 Correct 3 ms 544 KB Output is correct
5 Correct 2 ms 544 KB Output is correct

Subtask #3
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 468 KB Output is correct
2 Correct 3 ms 468 KB Output is correct
3 Correct 3 ms 544 KB Output is correct
4 Correct 3 ms 544 KB Output is correct
5 Correct 2 ms 544 KB Output is correct
6 Correct 2 ms 544 KB Output is correct
7 Correct 2 ms 544 KB Output is correct
8 Correct 2 ms 544 KB Output is correct
9 Correct 3 ms 572 KB Output is correct
10 Correct 2 ms 572 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 468 KB Output is correct
2 Correct 3 ms 468 KB Output is correct
3 Correct 3 ms 544 KB Output is correct
4 Correct 3 ms 544 KB Output is correct
5 Correct 2 ms 544 KB Output is correct
6 Correct 2 ms 544 KB Output is correct
7 Correct 2 ms 544 KB Output is correct
8 Correct 2 ms 544 KB Output is correct
9 Correct 3 ms 572 KB Output is correct
10 Correct 2 ms 572 KB Output is correct
11 Correct 3 ms 572 KB Output is correct
12 Correct 3 ms 572 KB Output is correct
13 Correct 3 ms 588 KB Output is correct
14 Correct 3 ms 604 KB Output is correct
15 Correct 4 ms 668 KB Output is correct
16 Correct 8 ms 812 KB Output is correct
17 Correct 8 ms 1068 KB Output is correct
18 Correct 6 ms 1068 KB Output is correct
19 Correct 8 ms 1068 KB Output is correct
20 Correct 10 ms 1068 KB Output is correct
21 Correct 47 ms 1452 KB Output is correct
22 Correct 70 ms 3652 KB Output is correct
23 Correct 53 ms 3652 KB Output is correct
24 Correct 70 ms 3652 KB Output is correct
25 Correct 78 ms 3700 KB Output is correct

Subtask #5
0 / 6.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 3700 KB Unexpected end of file - int32 expected

Subtask #6
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 3700 KB Unexpected end of file - int32 expected

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 3700 KB Unexpected end of file - int32 expected