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Submission #586380

# Submission time Handle Problem Language Result Execution time Memory
586380 2022-06-30T08:03:24 Z blue Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
100 / 100
 74 ms 28764 KB 
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

using vi = vector<int>;
using vvi = vector<vi>;

const int INF = 1'000'000;

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);

	int N;
	cin >> N;

	string s;
	cin >> s;
	s = " " + s;

	vi lst[3];

	vvi ct(1+N, vi(3, 0));

	for(int u = 0; u <= 2; u++)
		lst[u].push_back(0);

	vi S(1+N);
	for(int i = 1; i <= N; i++)
	{
		if(s[i] == 'R')
			S[i] = 0;
		else if(s[i] == 'G')
			S[i] = 1;
		else
			S[i] = 2;

		ct[i] = ct[i-1];
		ct[i][S[i]]++;

		lst[S[i]].push_back(i);
	}

	int DP[1 + ct[N][0]][1 + ct[N][1]][1 + ct[N][2]][3];
	for(int a = 0; a <= ct[N][0]; a++)
		for(int b = 0; b <= ct[N][1]; b++)
			for(int c = 0; c <= ct[N][2]; c++)
				for(int x = 0; x <= 2; x++)
					DP[a][b][c][x] = INF;

	for(int x = 0; x <= 2; x++)
		DP[0][0][0][x] = 0;

	for(int a = 0; a <= ct[N][0]; a++)
	{
		for(int b = 0; b <= ct[N][1]; b++)
		{
			for(int c = 0; c <= ct[N][2]; c++)
			{
				for(int x = 0; x <= 2; x++)
				{
					int na = a, nb = b, nc = c;

					if(x == 0 && a == 0)
						continue;

					if(x == 1 && b == 0)
						continue;

					if(x == 2 && c == 0)
						continue;

					int pos;
					if(x == 0)
						pos = lst[0][a];
					else if(x == 1)
						pos = lst[1][b];
					else
						pos = lst[2][c];

					int delta = abs(ct[pos][0] - a) + abs(ct[pos][1] - b) + abs(ct[pos][2] - c);

					if(x == 0)
						na--;
					else if(x == 1)
						nb--;
					else
						nc--;

					for(int y = 0; y <= 2; y++)
					{
						if(y == x) continue;

						DP[a][b][c][x] = min(DP[a][b][c][x], DP[na][nb][nc][y] + delta);
					}
				}
			}
		}
	}

	int res = INF;
	for(int x = 0; x <= 2; x++)
		res = min(res, DP[ct[N][0]][ct[N][1]][ct[N][2]][x]);

	if(res >= N*N)
		res = -1;
	else
		res /= 2;

	cout << res << '\n';
}

Subtask #1
5.0 / 5.0

# 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 0 ms 324 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 2 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 324 KB Output is correct

Subtask #2
55.0 / 55.0

# 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 0 ms 324 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 2 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 324 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 316 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 0 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 320 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 412 KB Output is correct
33 Correct 1 ms 320 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 320 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 340 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 316 KB Output is correct
2 Correct 1 ms 724 KB Output is correct
3 Correct 2 ms 724 KB Output is correct
4 Correct 2 ms 724 KB Output is correct
5 Correct 2 ms 724 KB Output is correct
6 Correct 1 ms 724 KB Output is correct
7 Correct 2 ms 724 KB Output is correct
8 Correct 2 ms 708 KB Output is correct
9 Correct 2 ms 724 KB Output is correct
10 Correct 2 ms 724 KB Output is correct
11 Correct 2 ms 724 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 596 KB Output is correct
15 Correct 2 ms 708 KB Output is correct
16 Correct 2 ms 724 KB Output is correct

Subtask #4
25.0 / 25.0

# 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 0 ms 324 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 2 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 324 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 316 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 0 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 320 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 412 KB Output is correct
33 Correct 1 ms 320 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 320 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 1 ms 316 KB Output is correct
43 Correct 1 ms 724 KB Output is correct
44 Correct 2 ms 724 KB Output is correct
45 Correct 2 ms 724 KB Output is correct
46 Correct 2 ms 724 KB Output is correct
47 Correct 1 ms 724 KB Output is correct
48 Correct 2 ms 724 KB Output is correct
49 Correct 2 ms 708 KB Output is correct
50 Correct 2 ms 724 KB Output is correct
51 Correct 2 ms 724 KB Output is correct
52 Correct 2 ms 724 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 1 ms 468 KB Output is correct
55 Correct 1 ms 596 KB Output is correct
56 Correct 2 ms 708 KB Output is correct
57 Correct 2 ms 724 KB Output is correct
58 Correct 68 ms 28468 KB Output is correct
59 Correct 69 ms 28372 KB Output is correct
60 Correct 68 ms 28260 KB Output is correct
61 Correct 68 ms 28568 KB Output is correct
62 Correct 6 ms 2644 KB Output is correct
63 Correct 11 ms 4436 KB Output is correct
64 Correct 36 ms 14144 KB Output is correct
65 Correct 52 ms 20376 KB Output is correct
66 Correct 70 ms 28116 KB Output is correct
67 Correct 74 ms 28116 KB Output is correct
68 Correct 69 ms 28500 KB Output is correct
69 Correct 69 ms 28764 KB Output is correct
70 Correct 70 ms 28664 KB Output is correct
71 Correct 68 ms 27988 KB Output is correct
72 Correct 19 ms 7380 KB Output is correct
73 Correct 5 ms 2132 KB Output is correct