#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) begin(a),end(a)
const int N = (int)3e3+2;
int n, m, ans;
string s[N];
int calc(int i, int j){
int x = i, y = j;
vector<array<int,2>> v; v.clear(); v.pb({x,y});
while(x+1<n and y) x++, y--, v.pb({x,y});
reverse(all(v)); int dp[sz(v)+1][3];
for(int i = 0; i <= sz(v); i++)
for(int j = 0; j < 3; j++) dp[i][j]=-N*N;
dp[0][0] = dp[0][1] = dp[0][2] = 0;
for(i = 1; i <= sz(v); i++){
dp[i][0] = max({dp[i-1][0],dp[i-1][1],dp[i-1][2]});
auto [x,y] = v[i-1];
if(y+2<m and s[x][y]=='R' and s[x][y+1]=='G' and s[x][y+2]=='W')
dp[i][1] = max({dp[i-1][0],dp[i-1][1],dp[i-1][2]})+1;
if(x+2<n and s[x][y]=='R' and s[x+1][y]=='G' and s[x+2][y]=='W'){
dp[i][2] = dp[i-1][2]+1;
if(i>=2) dp[i][2] = max(dp[i][2], max(dp[i-2][0],dp[i-2][2])+1);
}
}
return max({dp[sz(v)][0],dp[sz(v)][1],dp[sz(v)][2]});
}
int main(){
ios_base::sync_with_stdio(false); cin.tie(0);
cin >> n >> m;
for(int i = 0; i < n; i++) cin >> s[i];
for(int j = 0; j < m; j++) ans+=calc(0,j);
for(int i = 1; i < n; i++) ans+=calc(i,m-1);
cout << ans << "\n";
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
336 KB |
Output is correct |
| 2 |
Correct |
1 ms |
336 KB |
Output is correct |
| 3 |
Correct |
1 ms |
336 KB |
Output is correct |
| 4 |
Correct |
1 ms |
336 KB |
Output is correct |
| 5 |
Correct |
1 ms |
336 KB |
Output is correct |
| 6 |
Correct |
1 ms |
336 KB |
Output is correct |
| 7 |
Correct |
1 ms |
336 KB |
Output is correct |
| 8 |
Correct |
1 ms |
336 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
1 ms |
336 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 KB |
Output is correct |
| 12 |
Correct |
1 ms |
336 KB |
Output is correct |
| 13 |
Correct |
1 ms |
504 KB |
Output is correct |
| 14 |
Correct |
1 ms |
336 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 ms |
336 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
336 KB |
Output is correct |
| 2 |
Correct |
1 ms |
336 KB |
Output is correct |
| 3 |
Correct |
1 ms |
336 KB |
Output is correct |
| 4 |
Correct |
1 ms |
336 KB |
Output is correct |
| 5 |
Correct |
1 ms |
336 KB |
Output is correct |
| 6 |
Correct |
1 ms |
336 KB |
Output is correct |
| 7 |
Correct |
1 ms |
336 KB |
Output is correct |
| 8 |
Correct |
1 ms |
336 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
1 ms |
336 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 KB |
Output is correct |
| 12 |
Correct |
1 ms |
336 KB |
Output is correct |
| 13 |
Correct |
1 ms |
504 KB |
Output is correct |
| 14 |
Correct |
1 ms |
336 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 ms |
336 KB |
Output is correct |
| 17 |
Correct |
1 ms |
336 KB |
Output is correct |
| 18 |
Correct |
1 ms |
336 KB |
Output is correct |
| 19 |
Correct |
1 ms |
336 KB |
Output is correct |
| 20 |
Correct |
1 ms |
336 KB |
Output is correct |
| 21 |
Correct |
1 ms |
504 KB |
Output is correct |
| 22 |
Correct |
1 ms |
336 KB |
Output is correct |
| 23 |
Correct |
1 ms |
508 KB |
Output is correct |
| 24 |
Correct |
1 ms |
336 KB |
Output is correct |
| 25 |
Correct |
1 ms |
336 KB |
Output is correct |
| 26 |
Correct |
1 ms |
336 KB |
Output is correct |
| 27 |
Correct |
1 ms |
336 KB |
Output is correct |
| 28 |
Correct |
1 ms |
336 KB |
Output is correct |
| 29 |
Correct |
1 ms |
336 KB |
Output is correct |
| 30 |
Correct |
1 ms |
336 KB |
Output is correct |
| 31 |
Correct |
1 ms |
336 KB |
Output is correct |
| 32 |
Correct |
1 ms |
336 KB |
Output is correct |
| 33 |
Correct |
1 ms |
336 KB |
Output is correct |
| 34 |
Correct |
1 ms |
336 KB |
Output is correct |
| 35 |
Correct |
1 ms |
336 KB |
Output is correct |
| 36 |
Correct |
1 ms |
336 KB |
Output is correct |
| 37 |
Correct |
1 ms |
336 KB |
Output is correct |
| 38 |
Correct |
1 ms |
336 KB |
Output is correct |
| 39 |
Correct |
1 ms |
336 KB |
Output is correct |
| 40 |
Correct |
1 ms |
336 KB |
Output is correct |
| 41 |
Correct |
1 ms |
336 KB |
Output is correct |
| 42 |
Correct |
1 ms |
336 KB |
Output is correct |
| 43 |
Correct |
1 ms |
336 KB |
Output is correct |
| 44 |
Correct |
1 ms |
336 KB |
Output is correct |
| 45 |
Correct |
1 ms |
500 KB |
Output is correct |
| 46 |
Correct |
1 ms |
504 KB |
Output is correct |
| 47 |
Correct |
1 ms |
336 KB |
Output is correct |
| 48 |
Correct |
1 ms |
336 KB |
Output is correct |
| 49 |
Correct |
1 ms |
336 KB |
Output is correct |
| 50 |
Correct |
1 ms |
336 KB |
Output is correct |
| 51 |
Correct |
1 ms |
564 KB |
Output is correct |
| 52 |
Correct |
1 ms |
504 KB |
Output is correct |
| 53 |
Correct |
1 ms |
336 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
336 KB |
Output is correct |
| 2 |
Correct |
1 ms |
336 KB |
Output is correct |
| 3 |
Correct |
1 ms |
336 KB |
Output is correct |
| 4 |
Correct |
1 ms |
336 KB |
Output is correct |
| 5 |
Correct |
1 ms |
336 KB |
Output is correct |
| 6 |
Correct |
1 ms |
336 KB |
Output is correct |
| 7 |
Correct |
1 ms |
336 KB |
Output is correct |
| 8 |
Correct |
1 ms |
336 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
1 ms |
336 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 KB |
Output is correct |
| 12 |
Correct |
1 ms |
336 KB |
Output is correct |
| 13 |
Correct |
1 ms |
504 KB |
Output is correct |
| 14 |
Correct |
1 ms |
336 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 ms |
336 KB |
Output is correct |
| 17 |
Correct |
1 ms |
336 KB |
Output is correct |
| 18 |
Correct |
1 ms |
336 KB |
Output is correct |
| 19 |
Correct |
1 ms |
336 KB |
Output is correct |
| 20 |
Correct |
1 ms |
336 KB |
Output is correct |
| 21 |
Correct |
1 ms |
504 KB |
Output is correct |
| 22 |
Correct |
1 ms |
336 KB |
Output is correct |
| 23 |
Correct |
1 ms |
508 KB |
Output is correct |
| 24 |
Correct |
1 ms |
336 KB |
Output is correct |
| 25 |
Correct |
1 ms |
336 KB |
Output is correct |
| 26 |
Correct |
1 ms |
336 KB |
Output is correct |
| 27 |
Correct |
1 ms |
336 KB |
Output is correct |
| 28 |
Correct |
1 ms |
336 KB |
Output is correct |
| 29 |
Correct |
1 ms |
336 KB |
Output is correct |
| 30 |
Correct |
1 ms |
336 KB |
Output is correct |
| 31 |
Correct |
1 ms |
336 KB |
Output is correct |
| 32 |
Correct |
1 ms |
336 KB |
Output is correct |
| 33 |
Correct |
1 ms |
336 KB |
Output is correct |
| 34 |
Correct |
1 ms |
336 KB |
Output is correct |
| 35 |
Correct |
1 ms |
336 KB |
Output is correct |
| 36 |
Correct |
1 ms |
336 KB |
Output is correct |
| 37 |
Correct |
1 ms |
336 KB |
Output is correct |
| 38 |
Correct |
1 ms |
336 KB |
Output is correct |
| 39 |
Correct |
1 ms |
336 KB |
Output is correct |
| 40 |
Correct |
1 ms |
336 KB |
Output is correct |
| 41 |
Correct |
1 ms |
336 KB |
Output is correct |
| 42 |
Correct |
1 ms |
336 KB |
Output is correct |
| 43 |
Correct |
1 ms |
336 KB |
Output is correct |
| 44 |
Correct |
1 ms |
336 KB |
Output is correct |
| 45 |
Correct |
1 ms |
500 KB |
Output is correct |
| 46 |
Correct |
1 ms |
504 KB |
Output is correct |
| 47 |
Correct |
1 ms |
336 KB |
Output is correct |
| 48 |
Correct |
1 ms |
336 KB |
Output is correct |
| 49 |
Correct |
1 ms |
336 KB |
Output is correct |
| 50 |
Correct |
1 ms |
336 KB |
Output is correct |
| 51 |
Correct |
1 ms |
564 KB |
Output is correct |
| 52 |
Correct |
1 ms |
504 KB |
Output is correct |
| 53 |
Correct |
1 ms |
336 KB |
Output is correct |
| 54 |
Correct |
1 ms |
336 KB |
Output is correct |
| 55 |
Correct |
1 ms |
336 KB |
Output is correct |
| 56 |
Correct |
1 ms |
336 KB |
Output is correct |
| 57 |
Correct |
1 ms |
336 KB |
Output is correct |
| 58 |
Correct |
19 ms |
1616 KB |
Output is correct |
| 59 |
Correct |
205 ms |
10320 KB |
Output is correct |
| 60 |
Correct |
200 ms |
10312 KB |
Output is correct |
| 61 |
Correct |
198 ms |
10316 KB |
Output is correct |
| 62 |
Correct |
1 ms |
336 KB |
Output is correct |
| 63 |
Correct |
187 ms |
9932 KB |
Output is correct |
| 64 |
Correct |
147 ms |
10324 KB |
Output is correct |
| 65 |
Correct |
151 ms |
10320 KB |
Output is correct |
| 66 |
Correct |
165 ms |
10576 KB |
Output is correct |
| 67 |
Correct |
159 ms |
10320 KB |
Output is correct |
| 68 |
Correct |
171 ms |
10320 KB |
Output is correct |
| 69 |
Correct |
176 ms |
10320 KB |
Output is correct |
| 70 |
Correct |
14 ms |
1616 KB |
Output is correct |
| 71 |
Correct |
19 ms |
1616 KB |
Output is correct |
| 72 |
Correct |
16 ms |
1616 KB |
Output is correct |
| 73 |
Correct |
13 ms |
1788 KB |
Output is correct |
| 74 |
Correct |
14 ms |
1616 KB |
Output is correct |
| 75 |
Correct |
14 ms |
1636 KB |
Output is correct |
| 76 |
Correct |
14 ms |
1616 KB |
Output is correct |
| 77 |
Correct |
14 ms |
1616 KB |
Output is correct |
| 78 |
Correct |
14 ms |
1616 KB |
Output is correct |
| 79 |
Correct |
14 ms |
1628 KB |
Output is correct |
| 80 |
Correct |
14 ms |
1616 KB |
Output is correct |
| 81 |
Correct |
13 ms |
1616 KB |
Output is correct |
| 82 |
Correct |
14 ms |
1616 KB |
Output is correct |
| 83 |
Correct |
13 ms |
1648 KB |
Output is correct |
| 84 |
Correct |
13 ms |
1616 KB |
Output is correct |
| 85 |
Correct |
14 ms |
1616 KB |
Output is correct |
| 86 |
Correct |
13 ms |
1616 KB |
Output is correct |
| 87 |
Correct |
13 ms |
1616 KB |
Output is correct |
| 88 |
Correct |
14 ms |
1616 KB |
Output is correct |
| 89 |
Correct |
13 ms |
1784 KB |
Output is correct |
| 90 |
Correct |
13 ms |
1616 KB |
Output is correct |
