oj.uz

Submission #119978

# Submission time Handle Problem Language Result Execution time Memory
119978 2019-06-22T20:20:04 Z tutis Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
20 / 100
 500 ms 612 KB 
/*input
20
YYGYYYGGGGRGYYGRGRYG
*/
#pragma GCC optimize ("O3")
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
map<pair<string, char>, int>M;
int dp(string s, char x)
{
	//if (M.count({s, x}))
	//	return M[ {s, x}];
	if (s.size() == 1)
	{
		if (s[0] == x)
			return 0;
		else
			return 3e8;
	}
	int cost = 0;
	for (int i = s.size() - 1; i >= 0; i--)
	{
		if (s[i] == x)
		{
			cost += (int)s.size() - i - 1;
			string ss = s;
			s.erase(s.begin() + i);
			int mini = 3e8;
			for (char y : {'R', 'G', 'Y'})
			{
				if (y == x)
					continue;
				mini = min(mini, dp(s, y));
			}
			return /*M[ {ss, x}] =*/ cost + mini;
		}
	}
	return /*M[ {s, x}] =*/ 3e8;
}
int main()
{
	ios_base::sync_with_stdio(false);
	int n;
	string s;
	cin >> n >> s;
	int ans = min({dp(s, 'R'), dp(s, 'G'), dp(s, 'Y')});
	if (ans > 1e8)
		ans = -1;
	cout << ans << "\n";
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 4 ms 256 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 384 KB Output is correct

Subtask #2
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 4 ms 256 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Execution timed out 1049 ms 400 KB Time limit exceeded
19 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 2 ms 600 KB Output is correct
3 Correct 2 ms 560 KB Output is correct
4 Correct 2 ms 612 KB Output is correct
5 Correct 2 ms 600 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 2 ms 600 KB Output is correct
8 Correct 2 ms 560 KB Output is correct
9 Correct 3 ms 600 KB Output is correct
10 Correct 3 ms 600 KB Output is correct
11 Correct 2 ms 600 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 ms 512 KB Output is correct
15 Correct 2 ms 600 KB Output is correct
16 Correct 2 ms 600 KB Output is correct

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 4 ms 256 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Execution timed out 1049 ms 400 KB Time limit exceeded
19 Halted 0 ms 0 KB -