#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ld double
#define sz(x) (int)x.size()
#define all(x) x.begin(),x.end()
#define pb emplace_back
#define X first
#define Y second
const int N = 3005;
typedef pair<int,int> ii;
char a[N][N];
int f[N][2][2];
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
int n; cin >> n;
int m; cin >> m;
for(int i = 1 ; i <= n ; ++i)
for(int j = 1 ; j <= m ; ++j)
cin >> a[i][j];
int ans = 0;
for(int d = 1 ; d < n + m ; ++d) {
int r = 1;
int c = d;
if (c > m) r += (c - m), c = m;
if (r > n) c += (r - n), r = n;
int len = min(n - r + 1,c);
for(int i = 1 ; i <= len ; ++i)
f[i][0][0] = f[i][0][1] = 0,
f[i][1][0] = f[i][1][1] = 0;
for(int i = 1 ; i <= len ; ++i, ++r, --c) {
for(int j = 0 ; j < 2 ; ++j)
for(int k = 0 ; k < 2 ; ++k)
f[i][k][0] = max(f[i][k][0],f[i - 1][j][k]);
if (a[r][c] == 'R') {
if (a[r + 1][c] == 'G' && a[r + 2][c] == 'W') {
f[i][0][1] = max(f[i][0][1],f[i][0][0] + 1);
f[i][1][1] = max(f[i][1][1],f[i][1][0] + 1);
}
if (a[r][c + 1] == 'G' && a[r][c + 2] == 'W')
f[i][0][0] = max(f[i][0][0],f[i - 1][0][0] + 1);
}
}
int cur = 0;
for(int i = 1 ; i <= len ; ++i)
for(int j = 0 ; j < 2 ; ++j)
for(int k = 0 ; k < 2 ; ++k)
if (cur < f[i][j][k])
cur = f[i][j][k];
ans += cur;
}
cout << ans << endl;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
4 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
380 KB |
Output is correct |
13 |
Correct |
2 ms |
248 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
1 ms |
376 KB |
Output is correct |
16 |
Correct |
5 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
4 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
380 KB |
Output is correct |
13 |
Correct |
2 ms |
248 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
1 ms |
376 KB |
Output is correct |
16 |
Correct |
5 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
384 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
9 ms |
380 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
380 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
2 ms |
376 KB |
Output is correct |
27 |
Correct |
2 ms |
376 KB |
Output is correct |
28 |
Correct |
3 ms |
376 KB |
Output is correct |
29 |
Correct |
3 ms |
376 KB |
Output is correct |
30 |
Correct |
3 ms |
248 KB |
Output is correct |
31 |
Correct |
7 ms |
376 KB |
Output is correct |
32 |
Correct |
3 ms |
376 KB |
Output is correct |
33 |
Correct |
3 ms |
376 KB |
Output is correct |
34 |
Correct |
5 ms |
348 KB |
Output is correct |
35 |
Correct |
2 ms |
376 KB |
Output is correct |
36 |
Correct |
3 ms |
376 KB |
Output is correct |
37 |
Correct |
5 ms |
376 KB |
Output is correct |
38 |
Correct |
2 ms |
504 KB |
Output is correct |
39 |
Correct |
3 ms |
376 KB |
Output is correct |
40 |
Correct |
2 ms |
504 KB |
Output is correct |
41 |
Correct |
2 ms |
376 KB |
Output is correct |
42 |
Correct |
2 ms |
376 KB |
Output is correct |
43 |
Correct |
2 ms |
376 KB |
Output is correct |
44 |
Correct |
2 ms |
376 KB |
Output is correct |
45 |
Correct |
2 ms |
376 KB |
Output is correct |
46 |
Correct |
2 ms |
376 KB |
Output is correct |
47 |
Correct |
2 ms |
376 KB |
Output is correct |
48 |
Correct |
2 ms |
376 KB |
Output is correct |
49 |
Correct |
2 ms |
376 KB |
Output is correct |
50 |
Correct |
2 ms |
376 KB |
Output is correct |
51 |
Correct |
2 ms |
376 KB |
Output is correct |
52 |
Correct |
2 ms |
376 KB |
Output is correct |
53 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
4 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
380 KB |
Output is correct |
13 |
Correct |
2 ms |
248 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
1 ms |
376 KB |
Output is correct |
16 |
Correct |
5 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
384 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
9 ms |
380 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
380 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
2 ms |
376 KB |
Output is correct |
27 |
Correct |
2 ms |
376 KB |
Output is correct |
28 |
Correct |
3 ms |
376 KB |
Output is correct |
29 |
Correct |
3 ms |
376 KB |
Output is correct |
30 |
Correct |
3 ms |
248 KB |
Output is correct |
31 |
Correct |
7 ms |
376 KB |
Output is correct |
32 |
Correct |
3 ms |
376 KB |
Output is correct |
33 |
Correct |
3 ms |
376 KB |
Output is correct |
34 |
Correct |
5 ms |
348 KB |
Output is correct |
35 |
Correct |
2 ms |
376 KB |
Output is correct |
36 |
Correct |
3 ms |
376 KB |
Output is correct |
37 |
Correct |
5 ms |
376 KB |
Output is correct |
38 |
Correct |
2 ms |
504 KB |
Output is correct |
39 |
Correct |
3 ms |
376 KB |
Output is correct |
40 |
Correct |
2 ms |
504 KB |
Output is correct |
41 |
Correct |
2 ms |
376 KB |
Output is correct |
42 |
Correct |
2 ms |
376 KB |
Output is correct |
43 |
Correct |
2 ms |
376 KB |
Output is correct |
44 |
Correct |
2 ms |
376 KB |
Output is correct |
45 |
Correct |
2 ms |
376 KB |
Output is correct |
46 |
Correct |
2 ms |
376 KB |
Output is correct |
47 |
Correct |
2 ms |
376 KB |
Output is correct |
48 |
Correct |
2 ms |
376 KB |
Output is correct |
49 |
Correct |
2 ms |
376 KB |
Output is correct |
50 |
Correct |
2 ms |
376 KB |
Output is correct |
51 |
Correct |
2 ms |
376 KB |
Output is correct |
52 |
Correct |
2 ms |
376 KB |
Output is correct |
53 |
Correct |
2 ms |
376 KB |
Output is correct |
54 |
Correct |
3 ms |
376 KB |
Output is correct |
55 |
Correct |
7 ms |
9208 KB |
Output is correct |
56 |
Correct |
3 ms |
376 KB |
Output is correct |
57 |
Correct |
7 ms |
6264 KB |
Output is correct |
58 |
Correct |
37 ms |
4272 KB |
Output is correct |
59 |
Correct |
324 ms |
18172 KB |
Output is correct |
60 |
Correct |
325 ms |
18040 KB |
Output is correct |
61 |
Correct |
326 ms |
18172 KB |
Output is correct |
62 |
Correct |
2 ms |
376 KB |
Output is correct |
63 |
Correct |
315 ms |
17980 KB |
Output is correct |
64 |
Correct |
257 ms |
18080 KB |
Output is correct |
65 |
Correct |
256 ms |
18080 KB |
Output is correct |
66 |
Correct |
258 ms |
18168 KB |
Output is correct |
67 |
Correct |
254 ms |
18168 KB |
Output is correct |
68 |
Correct |
260 ms |
18084 KB |
Output is correct |
69 |
Correct |
276 ms |
18120 KB |
Output is correct |
70 |
Correct |
33 ms |
4472 KB |
Output is correct |
71 |
Correct |
33 ms |
4408 KB |
Output is correct |
72 |
Correct |
33 ms |
4344 KB |
Output is correct |
73 |
Correct |
35 ms |
4344 KB |
Output is correct |
74 |
Correct |
30 ms |
4264 KB |
Output is correct |
75 |
Correct |
31 ms |
4260 KB |
Output is correct |
76 |
Correct |
30 ms |
4216 KB |
Output is correct |
77 |
Correct |
33 ms |
4344 KB |
Output is correct |
78 |
Correct |
32 ms |
4344 KB |
Output is correct |
79 |
Correct |
31 ms |
4388 KB |
Output is correct |
80 |
Correct |
31 ms |
4344 KB |
Output is correct |
81 |
Correct |
32 ms |
4216 KB |
Output is correct |
82 |
Correct |
31 ms |
4344 KB |
Output is correct |
83 |
Correct |
31 ms |
4380 KB |
Output is correct |
84 |
Correct |
32 ms |
4216 KB |
Output is correct |
85 |
Correct |
32 ms |
4348 KB |
Output is correct |
86 |
Correct |
34 ms |
4216 KB |
Output is correct |
87 |
Correct |
35 ms |
4220 KB |
Output is correct |
88 |
Correct |
34 ms |
4216 KB |
Output is correct |
89 |
Correct |
33 ms |
4344 KB |
Output is correct |
90 |
Correct |
33 ms |
4216 KB |
Output is correct |