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Submission #679645

# Submission time Handle Problem Language Result Execution time Memory
679645 2023-01-08T19:46:54 Z ethening Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
100 / 100
 189 ms 134816 KB 
#include "bits/stdc++.h"
using namespace std;
using ll = long long;

int main() {
	cin.tie(0)->sync_with_stdio(0);
	int n;
	string s;
	cin >> n >> s;
	vector<int> pr(n + 1), pg(n + 1), py(n + 1);
	vector<int> vr, vg, vy;
	for (int i = 1; i <= n; i++) {
		pr[i] = pr[i - 1];
		pg[i] = pg[i - 1];
		py[i] = py[i - 1];
		if (s[i - 1] == 'R') {
			++pr[i];
			vr.push_back(i);
		}
		else if (s[i - 1] == 'G') {
			++pg[i];
			vg.push_back(i);
		}
		else if (s[i - 1] == 'Y') {
			++py[i];
			vy.push_back(i);
		}
	}
	int nr = (int)vr.size();
	int ng = (int)vg.size();
	int ny = (int)vy.size();
	vector dp(nr + 1, vector(ng + 1, vector(ny + 1, vector(3, 1000000000))));
	dp[0][0][0][0] = dp[0][0][0][1] = dp[0][0][0][2] = 0;
	for (int i = 0; i <= nr; i++) {
		for (int j = 0; j <= ng; j++) {
			for (int k = 0; k <= ny; k++) {
				if (i > 0) {
					int pos = vr[i - 1];
					dp[i][j][k][0] = min(dp[i][j][k][0], dp[i - 1][j][k][1] + abs(pg[pos] - j) + abs(py[pos] - k));
					dp[i][j][k][0] = min(dp[i][j][k][0], dp[i - 1][j][k][2] + abs(pg[pos] - j) + abs(py[pos] - k));
				}
				if (j > 0) {
					int pos = vg[j - 1];
					dp[i][j][k][1] = min(dp[i][j][k][1], dp[i][j - 1][k][0] + abs(pr[pos] - i) + abs(py[pos] - k));
					dp[i][j][k][1] = min(dp[i][j][k][1], dp[i][j - 1][k][2] + abs(pr[pos] - i) + abs(py[pos] - k));
				}
				if (k > 0) {
					int pos = vy[k - 1];
					dp[i][j][k][2] = min(dp[i][j][k][2], dp[i][j][k - 1][0] + abs(pr[pos] - i) + abs(pg[pos] - j));
					dp[i][j][k][2] = min(dp[i][j][k][2], dp[i][j][k - 1][1] + abs(pr[pos] - i) + abs(pg[pos] - j));
				}
				// for (int l = 0; l < 3; l++) {
				// 	cout << i << " " << j << " " << k << " " << l << " : " << dp[i][j][k][l] << endl;
				// }
			}
		}
	}
	int ans = min(dp[nr][ng][ny][0], min(dp[nr][ng][ny][1], dp[nr][ng][ny][2]));
	cout << ((ans >= 10000000) ? -1 : ans / 2) << endl;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 316 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 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 1 ms 212 KB Output is correct
16 Correct 1 ms 324 KB Output is correct
17 Correct 1 ms 212 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 316 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 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 1 ms 212 KB Output is correct
16 Correct 1 ms 324 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 828 KB Output is correct
19 Correct 2 ms 828 KB Output is correct
20 Correct 1 ms 852 KB Output is correct
21 Correct 1 ms 852 KB Output is correct
22 Correct 1 ms 724 KB Output is correct
23 Correct 1 ms 852 KB Output is correct
24 Correct 1 ms 724 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 2 ms 724 KB Output is correct
28 Correct 1 ms 852 KB Output is correct
29 Correct 1 ms 852 KB Output is correct
30 Correct 1 ms 832 KB Output is correct
31 Correct 1 ms 852 KB Output is correct
32 Correct 1 ms 852 KB Output is correct
33 Correct 1 ms 468 KB Output is correct
34 Correct 1 ms 468 KB Output is correct
35 Correct 1 ms 724 KB Output is correct
36 Correct 1 ms 832 KB Output is correct
37 Correct 1 ms 724 KB Output is correct
38 Correct 1 ms 724 KB Output is correct
39 Correct 2 ms 852 KB Output is correct
40 Correct 1 ms 320 KB Output is correct
41 Correct 1 ms 468 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 5 ms 3796 KB Output is correct
3 Correct 5 ms 3796 KB Output is correct
4 Correct 5 ms 3796 KB Output is correct
5 Correct 5 ms 3796 KB Output is correct
6 Correct 5 ms 3796 KB Output is correct
7 Correct 6 ms 3796 KB Output is correct
8 Correct 5 ms 3800 KB Output is correct
9 Correct 5 ms 3796 KB Output is correct
10 Correct 5 ms 3796 KB Output is correct
11 Correct 5 ms 3796 KB Output is correct
12 Correct 2 ms 1236 KB Output is correct
13 Correct 3 ms 1980 KB Output is correct
14 Correct 4 ms 2684 KB Output is correct
15 Correct 5 ms 3796 KB Output is correct
16 Correct 6 ms 3796 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 316 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 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 1 ms 212 KB Output is correct
16 Correct 1 ms 324 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 828 KB Output is correct
19 Correct 2 ms 828 KB Output is correct
20 Correct 1 ms 852 KB Output is correct
21 Correct 1 ms 852 KB Output is correct
22 Correct 1 ms 724 KB Output is correct
23 Correct 1 ms 852 KB Output is correct
24 Correct 1 ms 724 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 2 ms 724 KB Output is correct
28 Correct 1 ms 852 KB Output is correct
29 Correct 1 ms 852 KB Output is correct
30 Correct 1 ms 832 KB Output is correct
31 Correct 1 ms 852 KB Output is correct
32 Correct 1 ms 852 KB Output is correct
33 Correct 1 ms 468 KB Output is correct
34 Correct 1 ms 468 KB Output is correct
35 Correct 1 ms 724 KB Output is correct
36 Correct 1 ms 832 KB Output is correct
37 Correct 1 ms 724 KB Output is correct
38 Correct 1 ms 724 KB Output is correct
39 Correct 2 ms 852 KB Output is correct
40 Correct 1 ms 320 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 5 ms 3796 KB Output is correct
44 Correct 5 ms 3796 KB Output is correct
45 Correct 5 ms 3796 KB Output is correct
46 Correct 5 ms 3796 KB Output is correct
47 Correct 5 ms 3796 KB Output is correct
48 Correct 6 ms 3796 KB Output is correct
49 Correct 5 ms 3800 KB Output is correct
50 Correct 5 ms 3796 KB Output is correct
51 Correct 5 ms 3796 KB Output is correct
52 Correct 5 ms 3796 KB Output is correct
53 Correct 2 ms 1236 KB Output is correct
54 Correct 3 ms 1980 KB Output is correct
55 Correct 4 ms 2684 KB Output is correct
56 Correct 5 ms 3796 KB Output is correct
57 Correct 6 ms 3796 KB Output is correct
58 Correct 175 ms 133104 KB Output is correct
59 Correct 175 ms 133280 KB Output is correct
60 Correct 173 ms 132280 KB Output is correct
61 Correct 189 ms 133780 KB Output is correct
62 Correct 16 ms 12372 KB Output is correct
63 Correct 28 ms 20776 KB Output is correct
64 Correct 94 ms 66624 KB Output is correct
65 Correct 130 ms 95564 KB Output is correct
66 Correct 176 ms 131784 KB Output is correct
67 Correct 178 ms 131716 KB Output is correct
68 Correct 175 ms 133724 KB Output is correct
69 Correct 184 ms 134816 KB Output is correct
70 Correct 178 ms 134100 KB Output is correct
71 Correct 179 ms 131016 KB Output is correct
72 Correct 47 ms 34104 KB Output is correct
73 Correct 18 ms 10596 KB Output is correct