#include<bits/stdc++.h>
using namespace std;
int dp[3010][5];
pair <bool,bool> tmp[3010]; int n,m;
int get(int x,int y){
if (x < 0)x = 0;
if (y < 0)y = 0;
if (x <= 0 && y <= 0)return 0;
int res = -1;int r = x - y + 2;
if (dp[x][r] != -1)return dp[x][r];
if (x <= 0){
res = get(x,y-1) + tmp[y].second;
}
else if (y <= 0){
res = get(x-1,y) + tmp[x].first;
}
else{
if (x >= y){
res = get(x-1,y);
if (tmp[x].first){
res = max(res,1 + get(x-1,min(x-3,y)));
}
}
else{
res = get(x,y-1);
if (tmp[y].second){
res = max(res,1 + get(x,y-1));
}
}
}
//cout<<x<<' '<<y<<' '<<res<<'\n';
dp[x][r] = res;
return res;
}
int solve(){
memset(dp,-1,sizeof dp);
return get(n,n);
}
char a[3010][3010];
int main(){
ios_base::sync_with_stdio(0);cin.tie(nullptr);cout.tie(nullptr);
cin>>n>>m;
for (int i = 1;i <= n;i ++){
string s;
cin>>s;
for (int j = 1;j <= m;j ++){
a[i][j] = s[j-1];
}
}
int ans = 0;
for (int k = 2;k <= n + m;k ++){
for (int i =1 ;i <= n;i ++){
int j = k - i;
if (1 <= j && j <= m){
tmp[i].first = (a[i][j] == 'R' && a[i][j+1] == 'G' && a[i][j+2] == 'W');
tmp[i].second = (a[i][j] == 'R' && a[i+1][j] == 'G' && a[i+2][j] == 'W');
}
else{
tmp[i] = {0,0};
}
}
/*for (int i = 1;i <= n;i ++){
cout<<tmp[i].first<<' '<<tmp[i].second<<'\n';
}*/
ans += solve();
//cout<<k<<' '<<ans<<'\n';
}
cout<<ans<<'\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 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 |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
0 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
0 ms |
340 KB |
Output is correct |
14 |
Correct |
0 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
16 |
Correct |
0 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 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 |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
0 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
0 ms |
340 KB |
Output is correct |
14 |
Correct |
0 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
16 |
Correct |
0 ms |
340 KB |
Output is correct |
17 |
Correct |
0 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 |
0 ms |
340 KB |
Output is correct |
21 |
Correct |
0 ms |
340 KB |
Output is correct |
22 |
Correct |
0 ms |
340 KB |
Output is correct |
23 |
Correct |
0 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 |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
340 KB |
Output is correct |
28 |
Correct |
1 ms |
332 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
340 KB |
Output is correct |
31 |
Correct |
0 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 |
328 KB |
Output is correct |
35 |
Correct |
1 ms |
324 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 |
340 KB |
Output is correct |
39 |
Correct |
1 ms |
340 KB |
Output is correct |
40 |
Correct |
1 ms |
340 KB |
Output is correct |
41 |
Correct |
1 ms |
340 KB |
Output is correct |
42 |
Correct |
1 ms |
324 KB |
Output is correct |
43 |
Correct |
1 ms |
340 KB |
Output is correct |
44 |
Correct |
1 ms |
340 KB |
Output is correct |
45 |
Correct |
1 ms |
340 KB |
Output is correct |
46 |
Correct |
1 ms |
340 KB |
Output is correct |
47 |
Correct |
1 ms |
340 KB |
Output is correct |
48 |
Correct |
1 ms |
340 KB |
Output is correct |
49 |
Correct |
1 ms |
340 KB |
Output is correct |
50 |
Correct |
1 ms |
328 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 |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 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 |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
0 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
0 ms |
340 KB |
Output is correct |
14 |
Correct |
0 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
16 |
Correct |
0 ms |
340 KB |
Output is correct |
17 |
Correct |
0 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 |
0 ms |
340 KB |
Output is correct |
21 |
Correct |
0 ms |
340 KB |
Output is correct |
22 |
Correct |
0 ms |
340 KB |
Output is correct |
23 |
Correct |
0 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 |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
340 KB |
Output is correct |
28 |
Correct |
1 ms |
332 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
340 KB |
Output is correct |
31 |
Correct |
0 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 |
328 KB |
Output is correct |
35 |
Correct |
1 ms |
324 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 |
340 KB |
Output is correct |
39 |
Correct |
1 ms |
340 KB |
Output is correct |
40 |
Correct |
1 ms |
340 KB |
Output is correct |
41 |
Correct |
1 ms |
340 KB |
Output is correct |
42 |
Correct |
1 ms |
324 KB |
Output is correct |
43 |
Correct |
1 ms |
340 KB |
Output is correct |
44 |
Correct |
1 ms |
340 KB |
Output is correct |
45 |
Correct |
1 ms |
340 KB |
Output is correct |
46 |
Correct |
1 ms |
340 KB |
Output is correct |
47 |
Correct |
1 ms |
340 KB |
Output is correct |
48 |
Correct |
1 ms |
340 KB |
Output is correct |
49 |
Correct |
1 ms |
340 KB |
Output is correct |
50 |
Correct |
1 ms |
328 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 |
5 ms |
332 KB |
Output is correct |
55 |
Correct |
222 ms |
9684 KB |
Output is correct |
56 |
Correct |
5 ms |
340 KB |
Output is correct |
57 |
Correct |
102 ms |
6596 KB |
Output is correct |
58 |
Correct |
58 ms |
4496 KB |
Output is correct |
59 |
Correct |
500 ms |
11268 KB |
Output is correct |
60 |
Correct |
520 ms |
11440 KB |
Output is correct |
61 |
Correct |
520 ms |
11388 KB |
Output is correct |
62 |
Correct |
4 ms |
340 KB |
Output is correct |
63 |
Correct |
509 ms |
11456 KB |
Output is correct |
64 |
Correct |
506 ms |
11392 KB |
Output is correct |
65 |
Correct |
529 ms |
11400 KB |
Output is correct |
66 |
Correct |
552 ms |
11388 KB |
Output is correct |
67 |
Correct |
481 ms |
11388 KB |
Output is correct |
68 |
Correct |
495 ms |
11388 KB |
Output is correct |
69 |
Correct |
524 ms |
11268 KB |
Output is correct |
70 |
Correct |
58 ms |
4436 KB |
Output is correct |
71 |
Correct |
57 ms |
4504 KB |
Output is correct |
72 |
Correct |
58 ms |
4492 KB |
Output is correct |
73 |
Correct |
59 ms |
4488 KB |
Output is correct |
74 |
Correct |
60 ms |
4428 KB |
Output is correct |
75 |
Correct |
56 ms |
4496 KB |
Output is correct |
76 |
Correct |
55 ms |
4428 KB |
Output is correct |
77 |
Correct |
56 ms |
4488 KB |
Output is correct |
78 |
Correct |
66 ms |
4436 KB |
Output is correct |
79 |
Correct |
58 ms |
4488 KB |
Output is correct |
80 |
Correct |
60 ms |
4488 KB |
Output is correct |
81 |
Correct |
60 ms |
4492 KB |
Output is correct |
82 |
Correct |
61 ms |
4492 KB |
Output is correct |
83 |
Correct |
78 ms |
4500 KB |
Output is correct |
84 |
Correct |
73 ms |
4496 KB |
Output is correct |
85 |
Correct |
59 ms |
4436 KB |
Output is correct |
86 |
Correct |
69 ms |
4488 KB |
Output is correct |
87 |
Correct |
65 ms |
4480 KB |
Output is correct |
88 |
Correct |
63 ms |
4492 KB |
Output is correct |
89 |
Correct |
60 ms |
4488 KB |
Output is correct |
90 |
Correct |
59 ms |
4488 KB |
Output is correct |