#include <bits/stdc++.h>
using namespace std;
template<typename T>
void out(T x) { cout << x << endl; exit(0); }
#define watch(x) cout << (#x) << " is " << (x) << endl
const int maxn = 3002;
int n, m;
string g[maxn];
//RGW
bool can[maxn][maxn][4];
vector<pair<int,int>> diag[maxn+maxn];
int main() {
ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
cin>>n>>m;
for (int i=0; i<n; i++) {
cin>>g[i];
}
// mark centers
for (int i=0; i<n; i++) {
for (int j=0; j<m; j++) {
//vertical
if (i>0 && i+1<n) {
if (g[i-1][j]=='R' && g[i][j]=='G' && g[i+1][j]=='W') {
can[i][j][1]=true;
}
}
//horizontal
if (j>0 && j+1<m) {
if (g[i][j-1]=='R' && g[i][j]=='G' && g[i][j+1]=='W') {
can[i][j][2]=true;
}
}
}
}
for (int i=0; i<n; i++) {
for (int j=0; j<m; j++) {
diag[i+j].push_back({i,j});
}
}
int res = 0;
for (int d=0; d<n+m; d++) {
int len = diag[d].size();
vector<vector<int>> dp(len+1, vector<int>(3, 0)); //0: none, 1: vert, 2: horiz
for (int i=1; i<=len; i++) {
int x = diag[d][i-1].first;
int y = diag[d][i-1].second;
dp[i][0] = max({dp[i-1][0], dp[i-1][1], dp[i-1][2]});
for (int op=1; op<=2; op++) {
if (can[x][y][op]) {
dp[i][op] = max({dp[i][op], 1+dp[i-1][0], 1+dp[i-1][op]}); // vert only compatibile with vert along the diagonal
}
}
}
res += max({dp[len][0],dp[len][1],dp[len][2]});
}
cout<<res<<endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
620 KB |
Output is correct |
2 |
Correct |
1 ms |
620 KB |
Output is correct |
3 |
Correct |
1 ms |
620 KB |
Output is correct |
4 |
Correct |
1 ms |
512 KB |
Output is correct |
5 |
Correct |
1 ms |
620 KB |
Output is correct |
6 |
Correct |
1 ms |
640 KB |
Output is correct |
7 |
Correct |
1 ms |
640 KB |
Output is correct |
8 |
Correct |
1 ms |
620 KB |
Output is correct |
9 |
Correct |
1 ms |
620 KB |
Output is correct |
10 |
Correct |
1 ms |
620 KB |
Output is correct |
11 |
Correct |
1 ms |
620 KB |
Output is correct |
12 |
Correct |
1 ms |
748 KB |
Output is correct |
13 |
Correct |
1 ms |
620 KB |
Output is correct |
14 |
Correct |
1 ms |
620 KB |
Output is correct |
15 |
Correct |
1 ms |
620 KB |
Output is correct |
16 |
Correct |
1 ms |
620 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
620 KB |
Output is correct |
2 |
Correct |
1 ms |
620 KB |
Output is correct |
3 |
Correct |
1 ms |
620 KB |
Output is correct |
4 |
Correct |
1 ms |
512 KB |
Output is correct |
5 |
Correct |
1 ms |
620 KB |
Output is correct |
6 |
Correct |
1 ms |
640 KB |
Output is correct |
7 |
Correct |
1 ms |
640 KB |
Output is correct |
8 |
Correct |
1 ms |
620 KB |
Output is correct |
9 |
Correct |
1 ms |
620 KB |
Output is correct |
10 |
Correct |
1 ms |
620 KB |
Output is correct |
11 |
Correct |
1 ms |
620 KB |
Output is correct |
12 |
Correct |
1 ms |
748 KB |
Output is correct |
13 |
Correct |
1 ms |
620 KB |
Output is correct |
14 |
Correct |
1 ms |
620 KB |
Output is correct |
15 |
Correct |
1 ms |
620 KB |
Output is correct |
16 |
Correct |
1 ms |
620 KB |
Output is correct |
17 |
Correct |
1 ms |
620 KB |
Output is correct |
18 |
Correct |
1 ms |
620 KB |
Output is correct |
19 |
Correct |
1 ms |
620 KB |
Output is correct |
20 |
Correct |
1 ms |
620 KB |
Output is correct |
21 |
Correct |
1 ms |
620 KB |
Output is correct |
22 |
Correct |
3 ms |
620 KB |
Output is correct |
23 |
Correct |
1 ms |
620 KB |
Output is correct |
24 |
Correct |
1 ms |
640 KB |
Output is correct |
25 |
Correct |
1 ms |
620 KB |
Output is correct |
26 |
Correct |
1 ms |
620 KB |
Output is correct |
27 |
Correct |
1 ms |
620 KB |
Output is correct |
28 |
Correct |
1 ms |
620 KB |
Output is correct |
29 |
Correct |
1 ms |
748 KB |
Output is correct |
30 |
Correct |
1 ms |
620 KB |
Output is correct |
31 |
Correct |
1 ms |
620 KB |
Output is correct |
32 |
Correct |
1 ms |
620 KB |
Output is correct |
33 |
Correct |
1 ms |
620 KB |
Output is correct |
34 |
Correct |
1 ms |
620 KB |
Output is correct |
35 |
Correct |
1 ms |
640 KB |
Output is correct |
36 |
Correct |
1 ms |
620 KB |
Output is correct |
37 |
Correct |
1 ms |
620 KB |
Output is correct |
38 |
Correct |
1 ms |
620 KB |
Output is correct |
39 |
Correct |
1 ms |
620 KB |
Output is correct |
40 |
Correct |
1 ms |
620 KB |
Output is correct |
41 |
Correct |
1 ms |
640 KB |
Output is correct |
42 |
Correct |
1 ms |
640 KB |
Output is correct |
43 |
Correct |
1 ms |
620 KB |
Output is correct |
44 |
Correct |
1 ms |
620 KB |
Output is correct |
45 |
Correct |
1 ms |
620 KB |
Output is correct |
46 |
Correct |
1 ms |
620 KB |
Output is correct |
47 |
Correct |
14 ms |
620 KB |
Output is correct |
48 |
Correct |
1 ms |
620 KB |
Output is correct |
49 |
Correct |
1 ms |
620 KB |
Output is correct |
50 |
Correct |
1 ms |
620 KB |
Output is correct |
51 |
Correct |
1 ms |
620 KB |
Output is correct |
52 |
Correct |
1 ms |
620 KB |
Output is correct |
53 |
Correct |
1 ms |
620 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
620 KB |
Output is correct |
2 |
Correct |
1 ms |
620 KB |
Output is correct |
3 |
Correct |
1 ms |
620 KB |
Output is correct |
4 |
Correct |
1 ms |
512 KB |
Output is correct |
5 |
Correct |
1 ms |
620 KB |
Output is correct |
6 |
Correct |
1 ms |
640 KB |
Output is correct |
7 |
Correct |
1 ms |
640 KB |
Output is correct |
8 |
Correct |
1 ms |
620 KB |
Output is correct |
9 |
Correct |
1 ms |
620 KB |
Output is correct |
10 |
Correct |
1 ms |
620 KB |
Output is correct |
11 |
Correct |
1 ms |
620 KB |
Output is correct |
12 |
Correct |
1 ms |
748 KB |
Output is correct |
13 |
Correct |
1 ms |
620 KB |
Output is correct |
14 |
Correct |
1 ms |
620 KB |
Output is correct |
15 |
Correct |
1 ms |
620 KB |
Output is correct |
16 |
Correct |
1 ms |
620 KB |
Output is correct |
17 |
Correct |
1 ms |
620 KB |
Output is correct |
18 |
Correct |
1 ms |
620 KB |
Output is correct |
19 |
Correct |
1 ms |
620 KB |
Output is correct |
20 |
Correct |
1 ms |
620 KB |
Output is correct |
21 |
Correct |
1 ms |
620 KB |
Output is correct |
22 |
Correct |
3 ms |
620 KB |
Output is correct |
23 |
Correct |
1 ms |
620 KB |
Output is correct |
24 |
Correct |
1 ms |
640 KB |
Output is correct |
25 |
Correct |
1 ms |
620 KB |
Output is correct |
26 |
Correct |
1 ms |
620 KB |
Output is correct |
27 |
Correct |
1 ms |
620 KB |
Output is correct |
28 |
Correct |
1 ms |
620 KB |
Output is correct |
29 |
Correct |
1 ms |
748 KB |
Output is correct |
30 |
Correct |
1 ms |
620 KB |
Output is correct |
31 |
Correct |
1 ms |
620 KB |
Output is correct |
32 |
Correct |
1 ms |
620 KB |
Output is correct |
33 |
Correct |
1 ms |
620 KB |
Output is correct |
34 |
Correct |
1 ms |
620 KB |
Output is correct |
35 |
Correct |
1 ms |
640 KB |
Output is correct |
36 |
Correct |
1 ms |
620 KB |
Output is correct |
37 |
Correct |
1 ms |
620 KB |
Output is correct |
38 |
Correct |
1 ms |
620 KB |
Output is correct |
39 |
Correct |
1 ms |
620 KB |
Output is correct |
40 |
Correct |
1 ms |
620 KB |
Output is correct |
41 |
Correct |
1 ms |
640 KB |
Output is correct |
42 |
Correct |
1 ms |
640 KB |
Output is correct |
43 |
Correct |
1 ms |
620 KB |
Output is correct |
44 |
Correct |
1 ms |
620 KB |
Output is correct |
45 |
Correct |
1 ms |
620 KB |
Output is correct |
46 |
Correct |
1 ms |
620 KB |
Output is correct |
47 |
Correct |
14 ms |
620 KB |
Output is correct |
48 |
Correct |
1 ms |
620 KB |
Output is correct |
49 |
Correct |
1 ms |
620 KB |
Output is correct |
50 |
Correct |
1 ms |
620 KB |
Output is correct |
51 |
Correct |
1 ms |
620 KB |
Output is correct |
52 |
Correct |
1 ms |
620 KB |
Output is correct |
53 |
Correct |
1 ms |
620 KB |
Output is correct |
54 |
Correct |
1 ms |
748 KB |
Output is correct |
55 |
Correct |
3 ms |
1132 KB |
Output is correct |
56 |
Correct |
2 ms |
876 KB |
Output is correct |
57 |
Correct |
6 ms |
7788 KB |
Output is correct |
58 |
Correct |
97 ms |
21100 KB |
Output is correct |
59 |
Correct |
896 ms |
147196 KB |
Output is correct |
60 |
Correct |
883 ms |
147180 KB |
Output is correct |
61 |
Correct |
880 ms |
147308 KB |
Output is correct |
62 |
Correct |
1 ms |
748 KB |
Output is correct |
63 |
Correct |
850 ms |
143596 KB |
Output is correct |
64 |
Correct |
786 ms |
147180 KB |
Output is correct |
65 |
Correct |
797 ms |
147308 KB |
Output is correct |
66 |
Correct |
787 ms |
147308 KB |
Output is correct |
67 |
Correct |
768 ms |
127852 KB |
Output is correct |
68 |
Correct |
761 ms |
127980 KB |
Output is correct |
69 |
Correct |
797 ms |
133356 KB |
Output is correct |
70 |
Correct |
81 ms |
21132 KB |
Output is correct |
71 |
Correct |
84 ms |
21228 KB |
Output is correct |
72 |
Correct |
82 ms |
21228 KB |
Output is correct |
73 |
Correct |
83 ms |
21228 KB |
Output is correct |
74 |
Correct |
83 ms |
21228 KB |
Output is correct |
75 |
Correct |
84 ms |
21356 KB |
Output is correct |
76 |
Correct |
83 ms |
21228 KB |
Output is correct |
77 |
Correct |
81 ms |
21228 KB |
Output is correct |
78 |
Correct |
83 ms |
21228 KB |
Output is correct |
79 |
Correct |
81 ms |
21228 KB |
Output is correct |
80 |
Correct |
81 ms |
21228 KB |
Output is correct |
81 |
Correct |
81 ms |
21228 KB |
Output is correct |
82 |
Correct |
82 ms |
21356 KB |
Output is correct |
83 |
Correct |
82 ms |
21228 KB |
Output is correct |
84 |
Correct |
88 ms |
21228 KB |
Output is correct |
85 |
Correct |
81 ms |
21228 KB |
Output is correct |
86 |
Correct |
82 ms |
21228 KB |
Output is correct |
87 |
Correct |
88 ms |
21356 KB |
Output is correct |
88 |
Correct |
84 ms |
21228 KB |
Output is correct |
89 |
Correct |
81 ms |
21228 KB |
Output is correct |
90 |
Correct |
83 ms |
21228 KB |
Output is correct |