#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define MAXNM 3005
#define FOR(i, a, b) for(ll i = a; i <= b; i++)
const int N = 3e3 + 12, MOD = 998244353, M = 3e6 + 12;
char g[N][N];
int n, m, ok[N][N][2], dp[N * 2][3];
vector<array<int, 2>> e[N * 2];
int main(){
cin >> n >> m;
FOR(i, 1, n){
string s; cin >> s;
FOR(j, 1, m) g[i][j] = s[j - 1];
}
for(int i = 1; i <= n; i++) {
for(int j = 1; j <= m; j++) {
if(g[i][j] == 'G' && g[i][j - 1] == 'R' && g[i][j + 1] == 'W') {
ok[i][j][0] = 1;
}
if(g[i][j] == 'G' && g[i - 1][j] == 'R' && g[i + 1][j] == 'W') {
ok[i][j][1] = 1;
}
e[i + j].push_back({i, j});
}
}
int r = 0;
for(int i = 1; i <= n + m; i++) {
int f = (int)e[i].size() - 1;
if(e[i].empty()) continue;
dp[0][0] = ok[e[i][0][0]][e[i][0][1]][0];
dp[0][1] = ok[e[i][0][0]][e[i][0][1]][1];
dp[0][2] = 0;
for(int j = 1; j < (int)e[i].size(); j++) {
int x = e[i][j][0], y = e[i][j][1];
dp[j][2] = max({dp[j - 1][0], dp[j - 1][1], dp[j - 1][2]});
dp[j][0] = max(dp[j - 1][0], dp[j - 1][2]) + ok[x][y][0];
dp[j][1] = max(dp[j - 1][1], dp[j - 1][2]) + ok[x][y][1];
}
// cout << dp[f][1] << '\n';
r += max({dp[f][0], dp[f][1], dp[f][2]});
}
cout << r << endl;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
2640 KB |
Output is correct |
2 |
Correct |
1 ms |
2640 KB |
Output is correct |
3 |
Correct |
1 ms |
2808 KB |
Output is correct |
4 |
Correct |
1 ms |
2640 KB |
Output is correct |
5 |
Correct |
1 ms |
2808 KB |
Output is correct |
6 |
Correct |
1 ms |
4856 KB |
Output is correct |
7 |
Correct |
1 ms |
4688 KB |
Output is correct |
8 |
Correct |
1 ms |
4688 KB |
Output is correct |
9 |
Correct |
1 ms |
4688 KB |
Output is correct |
10 |
Correct |
1 ms |
4688 KB |
Output is correct |
11 |
Correct |
1 ms |
4688 KB |
Output is correct |
12 |
Correct |
1 ms |
4688 KB |
Output is correct |
13 |
Correct |
1 ms |
4688 KB |
Output is correct |
14 |
Correct |
1 ms |
4688 KB |
Output is correct |
15 |
Correct |
1 ms |
4856 KB |
Output is correct |
16 |
Correct |
1 ms |
4688 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
2640 KB |
Output is correct |
2 |
Correct |
1 ms |
2640 KB |
Output is correct |
3 |
Correct |
1 ms |
2808 KB |
Output is correct |
4 |
Correct |
1 ms |
2640 KB |
Output is correct |
5 |
Correct |
1 ms |
2808 KB |
Output is correct |
6 |
Correct |
1 ms |
4856 KB |
Output is correct |
7 |
Correct |
1 ms |
4688 KB |
Output is correct |
8 |
Correct |
1 ms |
4688 KB |
Output is correct |
9 |
Correct |
1 ms |
4688 KB |
Output is correct |
10 |
Correct |
1 ms |
4688 KB |
Output is correct |
11 |
Correct |
1 ms |
4688 KB |
Output is correct |
12 |
Correct |
1 ms |
4688 KB |
Output is correct |
13 |
Correct |
1 ms |
4688 KB |
Output is correct |
14 |
Correct |
1 ms |
4688 KB |
Output is correct |
15 |
Correct |
1 ms |
4856 KB |
Output is correct |
16 |
Correct |
1 ms |
4688 KB |
Output is correct |
17 |
Correct |
1 ms |
4856 KB |
Output is correct |
18 |
Correct |
1 ms |
4688 KB |
Output is correct |
19 |
Correct |
1 ms |
4688 KB |
Output is correct |
20 |
Correct |
1 ms |
4688 KB |
Output is correct |
21 |
Correct |
1 ms |
4688 KB |
Output is correct |
22 |
Correct |
1 ms |
4688 KB |
Output is correct |
23 |
Correct |
1 ms |
4688 KB |
Output is correct |
24 |
Correct |
1 ms |
4856 KB |
Output is correct |
25 |
Correct |
1 ms |
2640 KB |
Output is correct |
26 |
Correct |
1 ms |
2640 KB |
Output is correct |
27 |
Correct |
1 ms |
4688 KB |
Output is correct |
28 |
Correct |
1 ms |
4688 KB |
Output is correct |
29 |
Correct |
1 ms |
4688 KB |
Output is correct |
30 |
Correct |
1 ms |
4856 KB |
Output is correct |
31 |
Correct |
1 ms |
4680 KB |
Output is correct |
32 |
Correct |
1 ms |
4688 KB |
Output is correct |
33 |
Correct |
1 ms |
4688 KB |
Output is correct |
34 |
Correct |
1 ms |
4688 KB |
Output is correct |
35 |
Correct |
1 ms |
4688 KB |
Output is correct |
36 |
Correct |
1 ms |
4688 KB |
Output is correct |
37 |
Correct |
1 ms |
4688 KB |
Output is correct |
38 |
Correct |
1 ms |
4688 KB |
Output is correct |
39 |
Correct |
1 ms |
4688 KB |
Output is correct |
40 |
Correct |
1 ms |
4860 KB |
Output is correct |
41 |
Correct |
1 ms |
4688 KB |
Output is correct |
42 |
Correct |
1 ms |
4688 KB |
Output is correct |
43 |
Correct |
1 ms |
4688 KB |
Output is correct |
44 |
Correct |
1 ms |
4688 KB |
Output is correct |
45 |
Correct |
1 ms |
4688 KB |
Output is correct |
46 |
Correct |
1 ms |
4856 KB |
Output is correct |
47 |
Correct |
1 ms |
4688 KB |
Output is correct |
48 |
Correct |
1 ms |
4688 KB |
Output is correct |
49 |
Correct |
1 ms |
4688 KB |
Output is correct |
50 |
Correct |
1 ms |
4688 KB |
Output is correct |
51 |
Correct |
2 ms |
4688 KB |
Output is correct |
52 |
Correct |
2 ms |
4688 KB |
Output is correct |
53 |
Correct |
1 ms |
4688 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
2640 KB |
Output is correct |
2 |
Correct |
1 ms |
2640 KB |
Output is correct |
3 |
Correct |
1 ms |
2808 KB |
Output is correct |
4 |
Correct |
1 ms |
2640 KB |
Output is correct |
5 |
Correct |
1 ms |
2808 KB |
Output is correct |
6 |
Correct |
1 ms |
4856 KB |
Output is correct |
7 |
Correct |
1 ms |
4688 KB |
Output is correct |
8 |
Correct |
1 ms |
4688 KB |
Output is correct |
9 |
Correct |
1 ms |
4688 KB |
Output is correct |
10 |
Correct |
1 ms |
4688 KB |
Output is correct |
11 |
Correct |
1 ms |
4688 KB |
Output is correct |
12 |
Correct |
1 ms |
4688 KB |
Output is correct |
13 |
Correct |
1 ms |
4688 KB |
Output is correct |
14 |
Correct |
1 ms |
4688 KB |
Output is correct |
15 |
Correct |
1 ms |
4856 KB |
Output is correct |
16 |
Correct |
1 ms |
4688 KB |
Output is correct |
17 |
Correct |
1 ms |
4856 KB |
Output is correct |
18 |
Correct |
1 ms |
4688 KB |
Output is correct |
19 |
Correct |
1 ms |
4688 KB |
Output is correct |
20 |
Correct |
1 ms |
4688 KB |
Output is correct |
21 |
Correct |
1 ms |
4688 KB |
Output is correct |
22 |
Correct |
1 ms |
4688 KB |
Output is correct |
23 |
Correct |
1 ms |
4688 KB |
Output is correct |
24 |
Correct |
1 ms |
4856 KB |
Output is correct |
25 |
Correct |
1 ms |
2640 KB |
Output is correct |
26 |
Correct |
1 ms |
2640 KB |
Output is correct |
27 |
Correct |
1 ms |
4688 KB |
Output is correct |
28 |
Correct |
1 ms |
4688 KB |
Output is correct |
29 |
Correct |
1 ms |
4688 KB |
Output is correct |
30 |
Correct |
1 ms |
4856 KB |
Output is correct |
31 |
Correct |
1 ms |
4680 KB |
Output is correct |
32 |
Correct |
1 ms |
4688 KB |
Output is correct |
33 |
Correct |
1 ms |
4688 KB |
Output is correct |
34 |
Correct |
1 ms |
4688 KB |
Output is correct |
35 |
Correct |
1 ms |
4688 KB |
Output is correct |
36 |
Correct |
1 ms |
4688 KB |
Output is correct |
37 |
Correct |
1 ms |
4688 KB |
Output is correct |
38 |
Correct |
1 ms |
4688 KB |
Output is correct |
39 |
Correct |
1 ms |
4688 KB |
Output is correct |
40 |
Correct |
1 ms |
4860 KB |
Output is correct |
41 |
Correct |
1 ms |
4688 KB |
Output is correct |
42 |
Correct |
1 ms |
4688 KB |
Output is correct |
43 |
Correct |
1 ms |
4688 KB |
Output is correct |
44 |
Correct |
1 ms |
4688 KB |
Output is correct |
45 |
Correct |
1 ms |
4688 KB |
Output is correct |
46 |
Correct |
1 ms |
4856 KB |
Output is correct |
47 |
Correct |
1 ms |
4688 KB |
Output is correct |
48 |
Correct |
1 ms |
4688 KB |
Output is correct |
49 |
Correct |
1 ms |
4688 KB |
Output is correct |
50 |
Correct |
1 ms |
4688 KB |
Output is correct |
51 |
Correct |
2 ms |
4688 KB |
Output is correct |
52 |
Correct |
2 ms |
4688 KB |
Output is correct |
53 |
Correct |
1 ms |
4688 KB |
Output is correct |
54 |
Correct |
1 ms |
4688 KB |
Output is correct |
55 |
Correct |
9 ms |
78516 KB |
Output is correct |
56 |
Correct |
2 ms |
4944 KB |
Output is correct |
57 |
Correct |
7 ms |
56144 KB |
Output is correct |
58 |
Correct |
46 ms |
42572 KB |
Output is correct |
59 |
Correct |
359 ms |
177480 KB |
Output is correct |
60 |
Correct |
331 ms |
172876 KB |
Output is correct |
61 |
Correct |
344 ms |
172872 KB |
Output is correct |
62 |
Correct |
2 ms |
4688 KB |
Output is correct |
63 |
Correct |
340 ms |
174536 KB |
Output is correct |
64 |
Correct |
340 ms |
172872 KB |
Output is correct |
65 |
Correct |
328 ms |
172916 KB |
Output is correct |
66 |
Correct |
306 ms |
172936 KB |
Output is correct |
67 |
Correct |
344 ms |
180040 KB |
Output is correct |
68 |
Correct |
364 ms |
172872 KB |
Output is correct |
69 |
Correct |
339 ms |
177776 KB |
Output is correct |
70 |
Correct |
43 ms |
42576 KB |
Output is correct |
71 |
Correct |
45 ms |
41800 KB |
Output is correct |
72 |
Correct |
47 ms |
42824 KB |
Output is correct |
73 |
Correct |
43 ms |
41800 KB |
Output is correct |
74 |
Correct |
46 ms |
42568 KB |
Output is correct |
75 |
Correct |
45 ms |
41800 KB |
Output is correct |
76 |
Correct |
47 ms |
41756 KB |
Output is correct |
77 |
Correct |
44 ms |
41908 KB |
Output is correct |
78 |
Correct |
46 ms |
41800 KB |
Output is correct |
79 |
Correct |
44 ms |
41800 KB |
Output is correct |
80 |
Correct |
45 ms |
42568 KB |
Output is correct |
81 |
Correct |
45 ms |
42592 KB |
Output is correct |
82 |
Correct |
46 ms |
42824 KB |
Output is correct |
83 |
Correct |
46 ms |
41984 KB |
Output is correct |
84 |
Correct |
46 ms |
42576 KB |
Output is correct |
85 |
Correct |
42 ms |
41868 KB |
Output is correct |
86 |
Correct |
44 ms |
42584 KB |
Output is correct |
87 |
Correct |
42 ms |
41808 KB |
Output is correct |
88 |
Correct |
44 ms |
41800 KB |
Output is correct |
89 |
Correct |
41 ms |
41808 KB |
Output is correct |
90 |
Correct |
44 ms |
41812 KB |
Output is correct |