#include<bits/stdc++.h>
#define ll long long
#define ld long double
#define cd complex<ld>
#define pll pair<ll,ll>
#define pii pair<int,int>
#define pld pair<ld,ld>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;
ll n, m;
char c[3005][3005];
ll dp[2][3005][3005];
ll ans[3005][3005];
bool chk[2][3005][3005];
//vector<pair<ll,pll>> T[2][3005][3005];
void solve()
{
cin >> n >> m;
for(int i = 1; i<= n; i++)
{
for(int j = 1; j<= m; j++) cin >> c[i][j];
}
for(int i = 1 ;i<= n; i++)
{
for(int j = 3; j<= m; j++)
{
if(c[i][j-1]=='G'&&c[i][j]=='W'&&c[i][j-1]!=c[i][j-2]&&c[i][j-2]!=c[i][j]&&c[i][j]!=c[i][j-1]) chk[0][i][j] = 1;
}
}
for(int i = 3 ;i<= n; i++)
{
for(int j = 1; j<= m; j++)
{
if(c[i-1][j]=='G'&&c[i][j]=='W'&&c[i-1][j]!=c[i-2][j]&&c[i][j]!=c[i-2][j]&&c[i][j]!=c[i-1][j]) chk[1][i][j] = 1;
}
}
for(int i = 1; i<= n; i++)
{
for(int j = 1; j<= m; j++)
{
dp[1][i][j] = chk[1][i][j]+dp[1][i-1][j+1];
if(i-3>=0) dp[1][i][j] = max(dp[1][i][j], dp[0][i-3][j+3]+chk[1][i][j]);
dp[0][i][j] = max(dp[0][i-1][j+1]+chk[0][i][j],dp[1][i][j]);
//cout << i << " " << j << " " << dp[0][i][j] << " " << dp[1][i][j] << " " << chk[0][i][j] << " " << chk[1][i][j] << " " << dp[0][i-1][j+1]<< "\n";
}
}
ll ans = 0;
for(int i = 1; i<= n; i++)
{
for(int j = 1 ; j<= m; j++)
{
if(j==1||i==n)
{
ans += dp[0][i][j];
}
//cout << i << " " << j << " " << dp[0][i][j] << " " << dp[1][i][j] << " " << chk[0][i][j] << " " << chk[1][i][j] << " " << dp[0][i-1][j+1]<< "\n";
}
}
cout << ans;
}
signed main()
{
//freopen("IN.txt","r",stdin);
//freopen("OUT.txt","w",stdout);
ios_base::sync_with_stdio(NULL) ; cin.tie(nullptr) ; cout.tie(nullptr);
ll t = 1;
//cin >> t;
while(t--)
{
solve();
cout << "\n";
}
}
# |
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 |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 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 |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
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 |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 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 |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
0 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
0 ms |
340 KB |
Output is correct |
19 |
Correct |
0 ms |
340 KB |
Output is correct |
20 |
Correct |
0 ms |
468 KB |
Output is correct |
21 |
Correct |
1 ms |
468 KB |
Output is correct |
22 |
Correct |
0 ms |
468 KB |
Output is correct |
23 |
Correct |
1 ms |
468 KB |
Output is correct |
24 |
Correct |
1 ms |
468 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
0 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
468 KB |
Output is correct |
28 |
Correct |
0 ms |
468 KB |
Output is correct |
29 |
Correct |
1 ms |
460 KB |
Output is correct |
30 |
Correct |
0 ms |
456 KB |
Output is correct |
31 |
Correct |
1 ms |
468 KB |
Output is correct |
32 |
Correct |
1 ms |
468 KB |
Output is correct |
33 |
Correct |
1 ms |
468 KB |
Output is correct |
34 |
Correct |
1 ms |
468 KB |
Output is correct |
35 |
Correct |
1 ms |
468 KB |
Output is correct |
36 |
Correct |
1 ms |
468 KB |
Output is correct |
37 |
Correct |
1 ms |
468 KB |
Output is correct |
38 |
Correct |
0 ms |
468 KB |
Output is correct |
39 |
Correct |
0 ms |
468 KB |
Output is correct |
40 |
Correct |
0 ms |
468 KB |
Output is correct |
41 |
Correct |
1 ms |
468 KB |
Output is correct |
42 |
Correct |
1 ms |
468 KB |
Output is correct |
43 |
Correct |
0 ms |
468 KB |
Output is correct |
44 |
Correct |
1 ms |
468 KB |
Output is correct |
45 |
Correct |
1 ms |
456 KB |
Output is correct |
46 |
Correct |
1 ms |
468 KB |
Output is correct |
47 |
Correct |
1 ms |
456 KB |
Output is correct |
48 |
Correct |
1 ms |
468 KB |
Output is correct |
49 |
Correct |
1 ms |
468 KB |
Output is correct |
50 |
Correct |
1 ms |
468 KB |
Output is correct |
51 |
Correct |
1 ms |
468 KB |
Output is correct |
52 |
Correct |
1 ms |
468 KB |
Output is correct |
53 |
Correct |
1 ms |
468 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 |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 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 |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
0 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
0 ms |
340 KB |
Output is correct |
19 |
Correct |
0 ms |
340 KB |
Output is correct |
20 |
Correct |
0 ms |
468 KB |
Output is correct |
21 |
Correct |
1 ms |
468 KB |
Output is correct |
22 |
Correct |
0 ms |
468 KB |
Output is correct |
23 |
Correct |
1 ms |
468 KB |
Output is correct |
24 |
Correct |
1 ms |
468 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
0 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
468 KB |
Output is correct |
28 |
Correct |
0 ms |
468 KB |
Output is correct |
29 |
Correct |
1 ms |
460 KB |
Output is correct |
30 |
Correct |
0 ms |
456 KB |
Output is correct |
31 |
Correct |
1 ms |
468 KB |
Output is correct |
32 |
Correct |
1 ms |
468 KB |
Output is correct |
33 |
Correct |
1 ms |
468 KB |
Output is correct |
34 |
Correct |
1 ms |
468 KB |
Output is correct |
35 |
Correct |
1 ms |
468 KB |
Output is correct |
36 |
Correct |
1 ms |
468 KB |
Output is correct |
37 |
Correct |
1 ms |
468 KB |
Output is correct |
38 |
Correct |
0 ms |
468 KB |
Output is correct |
39 |
Correct |
0 ms |
468 KB |
Output is correct |
40 |
Correct |
0 ms |
468 KB |
Output is correct |
41 |
Correct |
1 ms |
468 KB |
Output is correct |
42 |
Correct |
1 ms |
468 KB |
Output is correct |
43 |
Correct |
0 ms |
468 KB |
Output is correct |
44 |
Correct |
1 ms |
468 KB |
Output is correct |
45 |
Correct |
1 ms |
456 KB |
Output is correct |
46 |
Correct |
1 ms |
468 KB |
Output is correct |
47 |
Correct |
1 ms |
456 KB |
Output is correct |
48 |
Correct |
1 ms |
468 KB |
Output is correct |
49 |
Correct |
1 ms |
468 KB |
Output is correct |
50 |
Correct |
1 ms |
468 KB |
Output is correct |
51 |
Correct |
1 ms |
468 KB |
Output is correct |
52 |
Correct |
1 ms |
468 KB |
Output is correct |
53 |
Correct |
1 ms |
468 KB |
Output is correct |
54 |
Correct |
1 ms |
340 KB |
Output is correct |
55 |
Correct |
15 ms |
33864 KB |
Output is correct |
56 |
Correct |
1 ms |
596 KB |
Output is correct |
57 |
Correct |
12 ms |
30900 KB |
Output is correct |
58 |
Correct |
38 ms |
33728 KB |
Output is correct |
59 |
Correct |
292 ms |
170732 KB |
Output is correct |
60 |
Correct |
285 ms |
170748 KB |
Output is correct |
61 |
Correct |
312 ms |
170740 KB |
Output is correct |
62 |
Correct |
1 ms |
468 KB |
Output is correct |
63 |
Correct |
283 ms |
170784 KB |
Output is correct |
64 |
Correct |
225 ms |
170656 KB |
Output is correct |
65 |
Correct |
246 ms |
170668 KB |
Output is correct |
66 |
Correct |
204 ms |
170692 KB |
Output is correct |
67 |
Correct |
214 ms |
160108 KB |
Output is correct |
68 |
Correct |
202 ms |
160140 KB |
Output is correct |
69 |
Correct |
216 ms |
166524 KB |
Output is correct |
70 |
Correct |
30 ms |
33740 KB |
Output is correct |
71 |
Correct |
32 ms |
33784 KB |
Output is correct |
72 |
Correct |
33 ms |
33740 KB |
Output is correct |
73 |
Correct |
34 ms |
33740 KB |
Output is correct |
74 |
Correct |
34 ms |
33820 KB |
Output is correct |
75 |
Correct |
34 ms |
33728 KB |
Output is correct |
76 |
Correct |
32 ms |
33796 KB |
Output is correct |
77 |
Correct |
31 ms |
33780 KB |
Output is correct |
78 |
Correct |
40 ms |
33740 KB |
Output is correct |
79 |
Correct |
33 ms |
33776 KB |
Output is correct |
80 |
Correct |
32 ms |
33820 KB |
Output is correct |
81 |
Correct |
31 ms |
33744 KB |
Output is correct |
82 |
Correct |
32 ms |
33752 KB |
Output is correct |
83 |
Correct |
35 ms |
33740 KB |
Output is correct |
84 |
Correct |
34 ms |
33780 KB |
Output is correct |
85 |
Correct |
31 ms |
33752 KB |
Output is correct |
86 |
Correct |
31 ms |
33760 KB |
Output is correct |
87 |
Correct |
36 ms |
33744 KB |
Output is correct |
88 |
Correct |
29 ms |
33720 KB |
Output is correct |
89 |
Correct |
30 ms |
33736 KB |
Output is correct |
90 |
Correct |
30 ms |
33760 KB |
Output is correct |