/*
Dango Maker
https://oj.uz/problem/view/JOI18_dango_maker
*/
#include <bits/stdc++.h>
using namespace std;
const int N = 3e3;
int main() {
ios::sync_with_stdio(0), cin.tie(0);
int n, m; cin >> n >> m;
static string s[N];
for (int i = 0; i < n; i++) cin >> s[i];
static int f[N][3];
int ans = 0;
for (int k = 0; k < n + m - 1; k++) {
int p = -1;
for (int i = 0; i < n; i++) {
int j = k - i;
if (j < 0 || j >= m) continue;
f[i][0] = f[i][1] = f[i][2] = 0;
if (p == -1) {
if (j > 0 && j < m - 1 && s[i][j - 1] == 'R' && s[i][j] == 'G' && s[i][j + 1] == 'W')
f[i][1] = 1;
if (i > 0 && i < n - 1 && s[i - 1][j] == 'R' && s[i][j] == 'G' && s[i + 1][j] == 'W')
f[i][2] = 1;
} else {
f[i][0] = max({f[p][0], f[p][1], f[p][2]});
if (j > 0 && j < m - 1 && s[i][j - 1] == 'R' && s[i][j] == 'G' && s[i][j + 1] == 'W')
f[i][1] = max(f[p][0], f[p][1]) + 1;
if (i > 0 && i < n - 1 && s[i - 1][j] == 'R' && s[i][j] == 'G' && s[i + 1][j] == 'W')
f[i][2] = max(f[p][0], f[p][2]) + 1;
}
p = i;
}
ans += max({f[p][0], f[p][1], f[p][2]});
}
cout << ans << '\n';
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
0 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
0 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
320 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
324 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
0 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
0 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
320 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
324 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 |
1 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 |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
320 KB |
Output is correct |
27 |
Correct |
1 ms |
320 KB |
Output is correct |
28 |
Correct |
1 ms |
320 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 |
324 KB |
Output is correct |
32 |
Correct |
1 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
316 KB |
Output is correct |
35 |
Correct |
1 ms |
340 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 |
320 KB |
Output is correct |
39 |
Correct |
1 ms |
320 KB |
Output is correct |
40 |
Correct |
0 ms |
340 KB |
Output is correct |
41 |
Correct |
1 ms |
340 KB |
Output is correct |
42 |
Correct |
1 ms |
320 KB |
Output is correct |
43 |
Correct |
1 ms |
340 KB |
Output is correct |
44 |
Correct |
1 ms |
328 KB |
Output is correct |
45 |
Correct |
1 ms |
340 KB |
Output is correct |
46 |
Correct |
1 ms |
340 KB |
Output is correct |
47 |
Correct |
0 ms |
320 KB |
Output is correct |
48 |
Correct |
1 ms |
340 KB |
Output is correct |
49 |
Correct |
0 ms |
328 KB |
Output is correct |
50 |
Correct |
1 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 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
0 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
0 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
320 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
324 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 |
1 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 |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
320 KB |
Output is correct |
27 |
Correct |
1 ms |
320 KB |
Output is correct |
28 |
Correct |
1 ms |
320 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 |
324 KB |
Output is correct |
32 |
Correct |
1 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
316 KB |
Output is correct |
35 |
Correct |
1 ms |
340 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 |
320 KB |
Output is correct |
39 |
Correct |
1 ms |
320 KB |
Output is correct |
40 |
Correct |
0 ms |
340 KB |
Output is correct |
41 |
Correct |
1 ms |
340 KB |
Output is correct |
42 |
Correct |
1 ms |
320 KB |
Output is correct |
43 |
Correct |
1 ms |
340 KB |
Output is correct |
44 |
Correct |
1 ms |
328 KB |
Output is correct |
45 |
Correct |
1 ms |
340 KB |
Output is correct |
46 |
Correct |
1 ms |
340 KB |
Output is correct |
47 |
Correct |
0 ms |
320 KB |
Output is correct |
48 |
Correct |
1 ms |
340 KB |
Output is correct |
49 |
Correct |
0 ms |
328 KB |
Output is correct |
50 |
Correct |
1 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 |
1 ms |
340 KB |
Output is correct |
55 |
Correct |
12 ms |
340 KB |
Output is correct |
56 |
Correct |
1 ms |
340 KB |
Output is correct |
57 |
Correct |
6 ms |
340 KB |
Output is correct |
58 |
Correct |
15 ms |
2468 KB |
Output is correct |
59 |
Correct |
144 ms |
18852 KB |
Output is correct |
60 |
Correct |
140 ms |
19036 KB |
Output is correct |
61 |
Correct |
144 ms |
18916 KB |
Output is correct |
62 |
Correct |
1 ms |
340 KB |
Output is correct |
63 |
Correct |
136 ms |
18180 KB |
Output is correct |
64 |
Correct |
88 ms |
18956 KB |
Output is correct |
65 |
Correct |
89 ms |
18916 KB |
Output is correct |
66 |
Correct |
86 ms |
18860 KB |
Output is correct |
67 |
Correct |
88 ms |
19136 KB |
Output is correct |
68 |
Correct |
89 ms |
18940 KB |
Output is correct |
69 |
Correct |
92 ms |
18892 KB |
Output is correct |
70 |
Correct |
9 ms |
2388 KB |
Output is correct |
71 |
Correct |
9 ms |
2388 KB |
Output is correct |
72 |
Correct |
10 ms |
2388 KB |
Output is correct |
73 |
Correct |
9 ms |
2452 KB |
Output is correct |
74 |
Correct |
10 ms |
2340 KB |
Output is correct |
75 |
Correct |
8 ms |
2388 KB |
Output is correct |
76 |
Correct |
9 ms |
2360 KB |
Output is correct |
77 |
Correct |
9 ms |
2380 KB |
Output is correct |
78 |
Correct |
9 ms |
2344 KB |
Output is correct |
79 |
Correct |
9 ms |
2388 KB |
Output is correct |
80 |
Correct |
9 ms |
2388 KB |
Output is correct |
81 |
Correct |
9 ms |
2356 KB |
Output is correct |
82 |
Correct |
9 ms |
2456 KB |
Output is correct |
83 |
Correct |
9 ms |
2376 KB |
Output is correct |
84 |
Correct |
9 ms |
2356 KB |
Output is correct |
85 |
Correct |
9 ms |
2388 KB |
Output is correct |
86 |
Correct |
9 ms |
2360 KB |
Output is correct |
87 |
Correct |
9 ms |
2388 KB |
Output is correct |
88 |
Correct |
9 ms |
2460 KB |
Output is correct |
89 |
Correct |
9 ms |
2388 KB |
Output is correct |
90 |
Correct |
11 ms |
2388 KB |
Output is correct |