#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define debug(x) cerr << #x << " " << x << "\n"
#define debugs(x) cerr << #x << " " << x << " "
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
typedef pair <int, int> pii;
typedef pair <long double, pii> muchie;
typedef tree <ll, null_type, less_equal <ll>, rb_tree_tag, tree_order_statistics_node_update> OST;
const ll NMAX = 300001;
const ll INF = (1LL << 60);
const ll HALF = (1LL << 59);
const ll MOD = 1000000007;
const ll BLOCK = 318;
const ll base = 31;
const ll nr_of_bits = 21;
const ll LIMIT = 1000;
char mat[3002][3002];
int dp[3002][3002][3];
int n, m;
bool abil[3001][3001][3];
void bagadp(int i, int j){
while(i >= 1 && i <= n && j >= 1 && j <= m){
dp[i][j][0] = max({dp[i - 1][j + 1][1], dp[i - 1][j + 1][0], dp[i - 1][j + 1][2]});
dp[i][j][1] = max({dp[i - 1][j + 1][1], dp[i - 1][j + 1][0]}) + 1;
dp[i][j][2] = max({dp[i - 1][j + 1][2], dp[i - 1][j + 1][0]}) + 1;
if(!abil[i][j][1])
dp[i][j][1] = -2e9;
if(!abil[i][j][2])
dp[i][j][2] = -2e9;
i++;
j--;
}
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int i, j;
cin >> n >> m;
for(i = 1; i <= n; i++){
for(j = 1; j <= m; j++){
cin >> mat[i][j];
}
}
for(i = 1; i <= n; i++){
for(j = 1; j <= m; j++){
abil[i][j][0] = 1;
if(mat[i][j] != 'G')
continue;
if(mat[i][j - 1] == 'R' && mat[i][j + 1] == 'W')
abil[i][j][1] = 1;
if(mat[i - 1][j] == 'R' && mat[i + 1][j] == 'W')
abil[i][j][2] = 1;
}
}
for(j = 1; j <= m; j++){
bagadp(1, j);
}
for(i = 1; i <= n; i++){
bagadp(i, m);
}
int sum = 0;
for(i = 1; i <= n; i++){
sum += max({dp[i][1][0], dp[i][1][1], dp[i][1][2]});
}
for(i = 2; i <= m; i++){
sum += max({dp[n][i][0], dp[n][i][1], dp[n][i][2]});
}
cout << sum;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
0 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
332 KB |
Output is correct |
13 |
Correct |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
1 ms |
332 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
0 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
332 KB |
Output is correct |
13 |
Correct |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
1 ms |
332 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
332 KB |
Output is correct |
17 |
Correct |
1 ms |
332 KB |
Output is correct |
18 |
Correct |
1 ms |
320 KB |
Output is correct |
19 |
Correct |
1 ms |
332 KB |
Output is correct |
20 |
Correct |
1 ms |
332 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
1 ms |
332 KB |
Output is correct |
24 |
Correct |
1 ms |
332 KB |
Output is correct |
25 |
Correct |
1 ms |
448 KB |
Output is correct |
26 |
Correct |
0 ms |
332 KB |
Output is correct |
27 |
Correct |
1 ms |
332 KB |
Output is correct |
28 |
Correct |
1 ms |
332 KB |
Output is correct |
29 |
Correct |
1 ms |
332 KB |
Output is correct |
30 |
Correct |
1 ms |
332 KB |
Output is correct |
31 |
Correct |
1 ms |
332 KB |
Output is correct |
32 |
Correct |
1 ms |
332 KB |
Output is correct |
33 |
Correct |
1 ms |
332 KB |
Output is correct |
34 |
Correct |
1 ms |
332 KB |
Output is correct |
35 |
Correct |
1 ms |
332 KB |
Output is correct |
36 |
Correct |
1 ms |
332 KB |
Output is correct |
37 |
Correct |
1 ms |
332 KB |
Output is correct |
38 |
Correct |
1 ms |
332 KB |
Output is correct |
39 |
Correct |
1 ms |
332 KB |
Output is correct |
40 |
Correct |
1 ms |
332 KB |
Output is correct |
41 |
Correct |
1 ms |
332 KB |
Output is correct |
42 |
Correct |
1 ms |
332 KB |
Output is correct |
43 |
Correct |
1 ms |
332 KB |
Output is correct |
44 |
Correct |
1 ms |
448 KB |
Output is correct |
45 |
Correct |
1 ms |
448 KB |
Output is correct |
46 |
Correct |
1 ms |
332 KB |
Output is correct |
47 |
Correct |
1 ms |
448 KB |
Output is correct |
48 |
Correct |
1 ms |
332 KB |
Output is correct |
49 |
Correct |
1 ms |
332 KB |
Output is correct |
50 |
Correct |
1 ms |
332 KB |
Output is correct |
51 |
Correct |
1 ms |
332 KB |
Output is correct |
52 |
Correct |
1 ms |
332 KB |
Output is correct |
53 |
Correct |
1 ms |
448 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
0 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
332 KB |
Output is correct |
13 |
Correct |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
1 ms |
332 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
332 KB |
Output is correct |
17 |
Correct |
1 ms |
332 KB |
Output is correct |
18 |
Correct |
1 ms |
320 KB |
Output is correct |
19 |
Correct |
1 ms |
332 KB |
Output is correct |
20 |
Correct |
1 ms |
332 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
1 ms |
332 KB |
Output is correct |
24 |
Correct |
1 ms |
332 KB |
Output is correct |
25 |
Correct |
1 ms |
448 KB |
Output is correct |
26 |
Correct |
0 ms |
332 KB |
Output is correct |
27 |
Correct |
1 ms |
332 KB |
Output is correct |
28 |
Correct |
1 ms |
332 KB |
Output is correct |
29 |
Correct |
1 ms |
332 KB |
Output is correct |
30 |
Correct |
1 ms |
332 KB |
Output is correct |
31 |
Correct |
1 ms |
332 KB |
Output is correct |
32 |
Correct |
1 ms |
332 KB |
Output is correct |
33 |
Correct |
1 ms |
332 KB |
Output is correct |
34 |
Correct |
1 ms |
332 KB |
Output is correct |
35 |
Correct |
1 ms |
332 KB |
Output is correct |
36 |
Correct |
1 ms |
332 KB |
Output is correct |
37 |
Correct |
1 ms |
332 KB |
Output is correct |
38 |
Correct |
1 ms |
332 KB |
Output is correct |
39 |
Correct |
1 ms |
332 KB |
Output is correct |
40 |
Correct |
1 ms |
332 KB |
Output is correct |
41 |
Correct |
1 ms |
332 KB |
Output is correct |
42 |
Correct |
1 ms |
332 KB |
Output is correct |
43 |
Correct |
1 ms |
332 KB |
Output is correct |
44 |
Correct |
1 ms |
448 KB |
Output is correct |
45 |
Correct |
1 ms |
448 KB |
Output is correct |
46 |
Correct |
1 ms |
332 KB |
Output is correct |
47 |
Correct |
1 ms |
448 KB |
Output is correct |
48 |
Correct |
1 ms |
332 KB |
Output is correct |
49 |
Correct |
1 ms |
332 KB |
Output is correct |
50 |
Correct |
1 ms |
332 KB |
Output is correct |
51 |
Correct |
1 ms |
332 KB |
Output is correct |
52 |
Correct |
1 ms |
332 KB |
Output is correct |
53 |
Correct |
1 ms |
448 KB |
Output is correct |
54 |
Correct |
1 ms |
332 KB |
Output is correct |
55 |
Correct |
15 ms |
33320 KB |
Output is correct |
56 |
Correct |
1 ms |
588 KB |
Output is correct |
57 |
Correct |
12 ms |
22572 KB |
Output is correct |
58 |
Correct |
71 ms |
26892 KB |
Output is correct |
59 |
Correct |
558 ms |
143368 KB |
Output is correct |
60 |
Correct |
547 ms |
142512 KB |
Output is correct |
61 |
Correct |
556 ms |
142512 KB |
Output is correct |
62 |
Correct |
1 ms |
332 KB |
Output is correct |
63 |
Correct |
528 ms |
142468 KB |
Output is correct |
64 |
Correct |
527 ms |
142656 KB |
Output is correct |
65 |
Correct |
535 ms |
142532 KB |
Output is correct |
66 |
Correct |
529 ms |
142532 KB |
Output is correct |
67 |
Correct |
491 ms |
142560 KB |
Output is correct |
68 |
Correct |
504 ms |
142628 KB |
Output is correct |
69 |
Correct |
505 ms |
142532 KB |
Output is correct |
70 |
Correct |
57 ms |
26764 KB |
Output is correct |
71 |
Correct |
57 ms |
26672 KB |
Output is correct |
72 |
Correct |
58 ms |
26704 KB |
Output is correct |
73 |
Correct |
57 ms |
26668 KB |
Output is correct |
74 |
Correct |
55 ms |
26732 KB |
Output is correct |
75 |
Correct |
54 ms |
26664 KB |
Output is correct |
76 |
Correct |
59 ms |
26708 KB |
Output is correct |
77 |
Correct |
55 ms |
26756 KB |
Output is correct |
78 |
Correct |
56 ms |
26704 KB |
Output is correct |
79 |
Correct |
55 ms |
26744 KB |
Output is correct |
80 |
Correct |
55 ms |
26700 KB |
Output is correct |
81 |
Correct |
56 ms |
26708 KB |
Output is correct |
82 |
Correct |
59 ms |
26748 KB |
Output is correct |
83 |
Correct |
57 ms |
26772 KB |
Output is correct |
84 |
Correct |
53 ms |
26652 KB |
Output is correct |
85 |
Correct |
55 ms |
26656 KB |
Output is correct |
86 |
Correct |
55 ms |
26684 KB |
Output is correct |
87 |
Correct |
55 ms |
26692 KB |
Output is correct |
88 |
Correct |
54 ms |
26748 KB |
Output is correct |
89 |
Correct |
54 ms |
26720 KB |
Output is correct |
90 |
Correct |
56 ms |
26704 KB |
Output is correct |