#include <bits/stdc++.h>
using namespace std;
const int maxN = 3e3 + 2;
char mat[maxN][maxN], str[maxN][3];
int dp[maxN][3];
int main() {
cin.tie(nullptr)->sync_with_stdio(false);
int n, m; cin >> n >> m;
for (int i = 0; i < n; i++)
for (int j = 0; j < m; j++) cin >> mat[i][j];
int ans = 0;
for (int i = 1; i < n + m - 2; i++) {
memset(str, 0, sizeof(str));
memset(dp, 0, sizeof(dp));
for (int j = 0; j < m; j++) {
for (int k = 0; k < 3; k++) {
int r = i + k - 1 - j, c = j;
if (r < 0 || r >= n) continue;
str[j][k] = mat[r][c];
}
}
for (int j = 0; j < m; j++) {
for (int k = 0; k < 3; k++) {
dp[j + 1][0] = max(dp[j + 1][0], dp[j][k]);
if (str[j][1] != 'G') continue;
if (j && k != 1 && str[j - 1][0] == 'R' && str[j + 1][2] == 'W')
dp[j + 1][2] = max(dp[j + 1][2], dp[j][k] + 1);
if (k != 2 && str[j][0] == 'R' && str[j][2] == 'W')
dp[j + 1][1] = max(dp[j + 1][1], dp[j][k] + 1);
}
}
ans += max({dp[m][0], dp[m][1], dp[m][2]});
}
cout << ans << '\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
464 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
0 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
464 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
0 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
464 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
0 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
464 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
0 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 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 |
0 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
0 ms |
340 KB |
Output is correct |
25 |
Correct |
0 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 |
0 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
340 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 |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
0 ms |
340 KB |
Output is correct |
35 |
Correct |
0 ms |
340 KB |
Output is correct |
36 |
Correct |
0 ms |
340 KB |
Output is correct |
37 |
Correct |
1 ms |
340 KB |
Output is correct |
38 |
Correct |
0 ms |
340 KB |
Output is correct |
39 |
Correct |
1 ms |
340 KB |
Output is correct |
40 |
Correct |
0 ms |
332 KB |
Output is correct |
41 |
Correct |
0 ms |
340 KB |
Output is correct |
42 |
Correct |
1 ms |
340 KB |
Output is correct |
43 |
Correct |
0 ms |
324 KB |
Output is correct |
44 |
Correct |
1 ms |
340 KB |
Output is correct |
45 |
Correct |
1 ms |
340 KB |
Output is correct |
46 |
Correct |
0 ms |
340 KB |
Output is correct |
47 |
Correct |
1 ms |
388 KB |
Output is correct |
48 |
Correct |
0 ms |
332 KB |
Output is correct |
49 |
Correct |
1 ms |
340 KB |
Output is correct |
50 |
Correct |
0 ms |
340 KB |
Output is correct |
51 |
Correct |
1 ms |
340 KB |
Output is correct |
52 |
Correct |
1 ms |
340 KB |
Output is correct |
53 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
464 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
0 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
464 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
0 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 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 |
0 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
0 ms |
340 KB |
Output is correct |
25 |
Correct |
0 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 |
0 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
340 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 |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
0 ms |
340 KB |
Output is correct |
35 |
Correct |
0 ms |
340 KB |
Output is correct |
36 |
Correct |
0 ms |
340 KB |
Output is correct |
37 |
Correct |
1 ms |
340 KB |
Output is correct |
38 |
Correct |
0 ms |
340 KB |
Output is correct |
39 |
Correct |
1 ms |
340 KB |
Output is correct |
40 |
Correct |
0 ms |
332 KB |
Output is correct |
41 |
Correct |
0 ms |
340 KB |
Output is correct |
42 |
Correct |
1 ms |
340 KB |
Output is correct |
43 |
Correct |
0 ms |
324 KB |
Output is correct |
44 |
Correct |
1 ms |
340 KB |
Output is correct |
45 |
Correct |
1 ms |
340 KB |
Output is correct |
46 |
Correct |
0 ms |
340 KB |
Output is correct |
47 |
Correct |
1 ms |
388 KB |
Output is correct |
48 |
Correct |
0 ms |
332 KB |
Output is correct |
49 |
Correct |
1 ms |
340 KB |
Output is correct |
50 |
Correct |
0 ms |
340 KB |
Output is correct |
51 |
Correct |
1 ms |
340 KB |
Output is correct |
52 |
Correct |
1 ms |
340 KB |
Output is correct |
53 |
Correct |
1 ms |
340 KB |
Output is correct |
54 |
Correct |
70 ms |
364 KB |
Output is correct |
55 |
Correct |
6 ms |
9172 KB |
Output is correct |
56 |
Correct |
77 ms |
384 KB |
Output is correct |
57 |
Correct |
4 ms |
6228 KB |
Output is correct |
58 |
Correct |
30 ms |
4180 KB |
Output is correct |
59 |
Correct |
288 ms |
17976 KB |
Output is correct |
60 |
Correct |
269 ms |
18004 KB |
Output is correct |
61 |
Correct |
268 ms |
17976 KB |
Output is correct |
62 |
Correct |
64 ms |
340 KB |
Output is correct |
63 |
Correct |
263 ms |
17684 KB |
Output is correct |
64 |
Correct |
242 ms |
17984 KB |
Output is correct |
65 |
Correct |
264 ms |
17984 KB |
Output is correct |
66 |
Correct |
260 ms |
17868 KB |
Output is correct |
67 |
Correct |
233 ms |
17940 KB |
Output is correct |
68 |
Correct |
238 ms |
17952 KB |
Output is correct |
69 |
Correct |
234 ms |
17976 KB |
Output is correct |
70 |
Correct |
28 ms |
4180 KB |
Output is correct |
71 |
Correct |
27 ms |
4180 KB |
Output is correct |
72 |
Correct |
30 ms |
4280 KB |
Output is correct |
73 |
Correct |
28 ms |
4172 KB |
Output is correct |
74 |
Correct |
28 ms |
4180 KB |
Output is correct |
75 |
Correct |
28 ms |
4180 KB |
Output is correct |
76 |
Correct |
28 ms |
4196 KB |
Output is correct |
77 |
Correct |
30 ms |
4180 KB |
Output is correct |
78 |
Correct |
28 ms |
4180 KB |
Output is correct |
79 |
Correct |
29 ms |
4180 KB |
Output is correct |
80 |
Correct |
29 ms |
4180 KB |
Output is correct |
81 |
Correct |
29 ms |
4180 KB |
Output is correct |
82 |
Correct |
31 ms |
4180 KB |
Output is correct |
83 |
Correct |
35 ms |
4180 KB |
Output is correct |
84 |
Correct |
29 ms |
4180 KB |
Output is correct |
85 |
Correct |
27 ms |
4180 KB |
Output is correct |
86 |
Correct |
27 ms |
4180 KB |
Output is correct |
87 |
Correct |
29 ms |
4180 KB |
Output is correct |
88 |
Correct |
30 ms |
4180 KB |
Output is correct |
89 |
Correct |
33 ms |
4180 KB |
Output is correct |
90 |
Correct |
30 ms |
4172 KB |
Output is correct |