// Cookie197
// the people who invented competitive programming must be ******* crazy
// why am i still here suffering while i can do something else more valuable?
// WHY???
//#pragma GCC optimize("O4,unroll-loops,no-stack-protector")
//#pragma GCC optimize("Ofast")
//#pragma GCC target("avx,avx2,fma")
#include<iostream>
#include<algorithm>
#include<vector>
#include<map>
#include<set>
#include<queue>
#include<stack>
#include<string>
#include<iomanip>
#include<math.h>
#include<unordered_map>
#include<numeric>
#include<random>
using namespace std;
#define Why_does_competitive_programming_even_exist ios::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define ll long long
#define pii pair<ll,ll>
#define pdd pair<double ,double>
#define mp make_pair
//#define mod 998244353
#define mod 1000000007
#define endl "\n"
#define inf (ll)5e18
#define out(x) cout << #x << " = " << x <<endl;
#define out2(a,b) cout<< #a << "[" << b << "]" << " = " << a[b] << endl;
#define outp(x) cout << #x << " first = " << x.first << " second = " << x.second << endl
// 以斜排來看,不論怎麼選,RGW都是「第i斜排,第i+1斜排,第i+2斜排」
// 所以,不同斜排(不同i)的串,是完全獨立的
// 對每個斜排,都做一個dp,再把每一斜排的答案加起來
// 對每個斜排,由左下到右上,考慮G
// 每個G可以選擇:不選(0) 選上下i-1,i,i+1(1) 選左右j-1,j,j+1(2)
int dp[3005][3];
int arr[3005][3005];
int n,m,rcnt;
vector<pii> R;
int ans;
signed main(){
cin>>n>>m;
for (int i=1;i<=n;i++){
for (int j=1;j<=m;j++){
char c; cin>>c;
if (c=='R') arr[i][j] = 1;
if (c=='G') arr[i][j] = 2;
if (c=='W') arr[i][j] = 3;
}
}
for (int z=2;z<=n+m;z++){
int now = 0;
for (int i=1;i<=n;i++) dp[i][0] = dp[i][1] = dp[i][2] = 0;
for (int i=1;i<=n;i++){
int j = z-i;
if (j<=0 || j>m) continue;
dp[i][0] = max(dp[i-1][0], max(dp[i-1][1], dp[i-1][2]));
if (arr[i][j] == 2 && arr[i-1][j] == 1 && arr[i+1][j] == 3){
dp[i][1] = max(dp[i-1][0], dp[i-1][1]) + 1;
}
if (arr[i][j] == 2 && arr[i][j-1] == 1 && arr[i][j+1] == 3){
dp[i][2] = max(dp[i-1][0], dp[i-1][2]) + 1;
}
now = max(now, max(max(dp[i][0], dp[i][1]),dp[i][2]));
}
ans += now;
}
cout<<ans<<endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
300 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
300 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
304 KB |
Output is correct |
21 |
Correct |
0 ms |
340 KB |
Output is correct |
22 |
Correct |
0 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
308 KB |
Output is correct |
24 |
Correct |
0 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
340 KB |
Output is correct |
28 |
Correct |
0 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
340 KB |
Output is correct |
31 |
Correct |
1 ms |
340 KB |
Output is correct |
32 |
Correct |
0 ms |
340 KB |
Output is correct |
33 |
Correct |
0 ms |
312 KB |
Output is correct |
34 |
Correct |
0 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
36 |
Correct |
1 ms |
304 KB |
Output is correct |
37 |
Correct |
1 ms |
340 KB |
Output is correct |
38 |
Correct |
0 ms |
340 KB |
Output is correct |
39 |
Correct |
0 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 |
0 ms |
304 KB |
Output is correct |
43 |
Correct |
0 ms |
340 KB |
Output is correct |
44 |
Correct |
1 ms |
308 KB |
Output is correct |
45 |
Correct |
1 ms |
340 KB |
Output is correct |
46 |
Correct |
1 ms |
308 KB |
Output is correct |
47 |
Correct |
0 ms |
340 KB |
Output is correct |
48 |
Correct |
0 ms |
340 KB |
Output is correct |
49 |
Correct |
1 ms |
340 KB |
Output is correct |
50 |
Correct |
1 ms |
308 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 |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
300 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
304 KB |
Output is correct |
21 |
Correct |
0 ms |
340 KB |
Output is correct |
22 |
Correct |
0 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
308 KB |
Output is correct |
24 |
Correct |
0 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
340 KB |
Output is correct |
28 |
Correct |
0 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
340 KB |
Output is correct |
31 |
Correct |
1 ms |
340 KB |
Output is correct |
32 |
Correct |
0 ms |
340 KB |
Output is correct |
33 |
Correct |
0 ms |
312 KB |
Output is correct |
34 |
Correct |
0 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
36 |
Correct |
1 ms |
304 KB |
Output is correct |
37 |
Correct |
1 ms |
340 KB |
Output is correct |
38 |
Correct |
0 ms |
340 KB |
Output is correct |
39 |
Correct |
0 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 |
0 ms |
304 KB |
Output is correct |
43 |
Correct |
0 ms |
340 KB |
Output is correct |
44 |
Correct |
1 ms |
308 KB |
Output is correct |
45 |
Correct |
1 ms |
340 KB |
Output is correct |
46 |
Correct |
1 ms |
308 KB |
Output is correct |
47 |
Correct |
0 ms |
340 KB |
Output is correct |
48 |
Correct |
0 ms |
340 KB |
Output is correct |
49 |
Correct |
1 ms |
340 KB |
Output is correct |
50 |
Correct |
1 ms |
308 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 |
1 ms |
212 KB |
Output is correct |
55 |
Correct |
23 ms |
12416 KB |
Output is correct |
56 |
Correct |
2 ms |
320 KB |
Output is correct |
57 |
Correct |
12 ms |
8384 KB |
Output is correct |
58 |
Correct |
80 ms |
9088 KB |
Output is correct |
59 |
Correct |
708 ms |
44548 KB |
Output is correct |
60 |
Correct |
704 ms |
44540 KB |
Output is correct |
61 |
Correct |
698 ms |
44428 KB |
Output is correct |
62 |
Correct |
1 ms |
340 KB |
Output is correct |
63 |
Correct |
707 ms |
44308 KB |
Output is correct |
64 |
Correct |
676 ms |
44428 KB |
Output is correct |
65 |
Correct |
677 ms |
44432 KB |
Output is correct |
66 |
Correct |
673 ms |
44376 KB |
Output is correct |
67 |
Correct |
594 ms |
44468 KB |
Output is correct |
68 |
Correct |
593 ms |
44424 KB |
Output is correct |
69 |
Correct |
624 ms |
44428 KB |
Output is correct |
70 |
Correct |
78 ms |
9148 KB |
Output is correct |
71 |
Correct |
76 ms |
9200 KB |
Output is correct |
72 |
Correct |
75 ms |
9176 KB |
Output is correct |
73 |
Correct |
74 ms |
9208 KB |
Output is correct |
74 |
Correct |
76 ms |
9208 KB |
Output is correct |
75 |
Correct |
78 ms |
9196 KB |
Output is correct |
76 |
Correct |
76 ms |
9200 KB |
Output is correct |
77 |
Correct |
77 ms |
9112 KB |
Output is correct |
78 |
Correct |
76 ms |
9208 KB |
Output is correct |
79 |
Correct |
78 ms |
9088 KB |
Output is correct |
80 |
Correct |
76 ms |
9172 KB |
Output is correct |
81 |
Correct |
74 ms |
9204 KB |
Output is correct |
82 |
Correct |
78 ms |
9128 KB |
Output is correct |
83 |
Correct |
78 ms |
9104 KB |
Output is correct |
84 |
Correct |
76 ms |
9140 KB |
Output is correct |
85 |
Correct |
76 ms |
9164 KB |
Output is correct |
86 |
Correct |
82 ms |
9152 KB |
Output is correct |
87 |
Correct |
74 ms |
9112 KB |
Output is correct |
88 |
Correct |
80 ms |
9304 KB |
Output is correct |
89 |
Correct |
75 ms |
9196 KB |
Output is correct |
90 |
Correct |
77 ms |
9172 KB |
Output is correct |