#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;
}
| # |
Verdict |
Execution time |
Memory |
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 |
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 |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 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 |
1 ms |
340 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
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 |
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 |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 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 |
1 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 |
0 ms |
340 KB |
Output is correct |
| 28 |
Correct |
1 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 |
1 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 |
1 ms |
340 KB |
Output is correct |
| 41 |
Correct |
0 ms |
340 KB |
Output is correct |
| 42 |
Correct |
0 ms |
340 KB |
Output is correct |
| 43 |
Correct |
0 ms |
340 KB |
Output is correct |
| 44 |
Correct |
0 ms |
340 KB |
Output is correct |
| 45 |
Correct |
0 ms |
340 KB |
Output is correct |
| 46 |
Correct |
0 ms |
340 KB |
Output is correct |
| 47 |
Correct |
1 ms |
340 KB |
Output is correct |
| 48 |
Correct |
0 ms |
340 KB |
Output is correct |
| 49 |
Correct |
0 ms |
340 KB |
Output is correct |
| 50 |
Correct |
0 ms |
340 KB |
Output is correct |
| 51 |
Correct |
0 ms |
340 KB |
Output is correct |
| 52 |
Correct |
1 ms |
340 KB |
Output is correct |
| 53 |
Correct |
0 ms |
340 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
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 |
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 |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 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 |
1 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 |
0 ms |
340 KB |
Output is correct |
| 28 |
Correct |
1 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 |
1 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 |
1 ms |
340 KB |
Output is correct |
| 41 |
Correct |
0 ms |
340 KB |
Output is correct |
| 42 |
Correct |
0 ms |
340 KB |
Output is correct |
| 43 |
Correct |
0 ms |
340 KB |
Output is correct |
| 44 |
Correct |
0 ms |
340 KB |
Output is correct |
| 45 |
Correct |
0 ms |
340 KB |
Output is correct |
| 46 |
Correct |
0 ms |
340 KB |
Output is correct |
| 47 |
Correct |
1 ms |
340 KB |
Output is correct |
| 48 |
Correct |
0 ms |
340 KB |
Output is correct |
| 49 |
Correct |
0 ms |
340 KB |
Output is correct |
| 50 |
Correct |
0 ms |
340 KB |
Output is correct |
| 51 |
Correct |
0 ms |
340 KB |
Output is correct |
| 52 |
Correct |
1 ms |
340 KB |
Output is correct |
| 53 |
Correct |
0 ms |
340 KB |
Output is correct |
| 54 |
Correct |
5 ms |
340 KB |
Output is correct |
| 55 |
Correct |
204 ms |
9684 KB |
Output is correct |
| 56 |
Correct |
5 ms |
340 KB |
Output is correct |
| 57 |
Correct |
94 ms |
6484 KB |
Output is correct |
| 58 |
Correct |
61 ms |
3412 KB |
Output is correct |
| 59 |
Correct |
492 ms |
9804 KB |
Output is correct |
| 60 |
Correct |
490 ms |
9720 KB |
Output is correct |
| 61 |
Correct |
542 ms |
9728 KB |
Output is correct |
| 62 |
Correct |
6 ms |
340 KB |
Output is correct |
| 63 |
Correct |
498 ms |
9680 KB |
Output is correct |
| 64 |
Correct |
507 ms |
9684 KB |
Output is correct |
| 65 |
Correct |
517 ms |
9716 KB |
Output is correct |
| 66 |
Correct |
519 ms |
9804 KB |
Output is correct |
| 67 |
Correct |
485 ms |
9716 KB |
Output is correct |
| 68 |
Correct |
473 ms |
9712 KB |
Output is correct |
| 69 |
Correct |
472 ms |
9716 KB |
Output is correct |
| 70 |
Correct |
57 ms |
3508 KB |
Output is correct |
| 71 |
Correct |
57 ms |
3504 KB |
Output is correct |
| 72 |
Correct |
56 ms |
3512 KB |
Output is correct |
| 73 |
Correct |
56 ms |
3508 KB |
Output is correct |
| 74 |
Correct |
55 ms |
3412 KB |
Output is correct |
| 75 |
Correct |
73 ms |
3504 KB |
Output is correct |
| 76 |
Correct |
60 ms |
3412 KB |
Output is correct |
| 77 |
Correct |
58 ms |
3540 KB |
Output is correct |
| 78 |
Correct |
56 ms |
3412 KB |
Output is correct |
| 79 |
Correct |
59 ms |
3508 KB |
Output is correct |
| 80 |
Correct |
56 ms |
3412 KB |
Output is correct |
| 81 |
Correct |
57 ms |
3412 KB |
Output is correct |
| 82 |
Correct |
55 ms |
3412 KB |
Output is correct |
| 83 |
Correct |
60 ms |
3536 KB |
Output is correct |
| 84 |
Correct |
59 ms |
3512 KB |
Output is correct |
| 85 |
Correct |
67 ms |
3412 KB |
Output is correct |
| 86 |
Correct |
59 ms |
3512 KB |
Output is correct |
| 87 |
Correct |
58 ms |
3508 KB |
Output is correct |
| 88 |
Correct |
59 ms |
3412 KB |
Output is correct |
| 89 |
Correct |
57 ms |
3412 KB |
Output is correct |
| 90 |
Correct |
59 ms |
3508 KB |
Output is correct |
