#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>
#define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
#define fb(i,a,b) for(int (i) = (a); (i) >= (b); --(i))
#define mod 998244353
#define xx first
#define yy second
#define all(a) (a).begin(), (a).end()
#define pb push_back
#define ll long long
#define pii pair<int,int>
using namespace std;
using namespace __gnu_pbds;
typedef tree<int, null_type, less<int>,rb_tree_tag, tree_order_statistics_node_update> ordered_set;/// find_by_order(x)(x+1th) , order_of_key() (strictly less)
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
int n,m;
int mat[3005][3005];
bool moze[3005][3005][2];
int dp[3005][3];
pii kurac[6005];
int main()
{
ios_base::sync_with_stdio(false); cin.tie(0);
cin >> n >> m;
ff(i,1,n){
string x;
cin >> x;
ff(j,0,m - 1){
if(x[j] == 'R')mat[i][j + 1] = 0;
else if(x[j] == 'G')mat[i][j + 1] = 1;
else if(x[j] == 'W')mat[i][j + 1] = 2;
}
}
ff(i,1,6000)kurac[i] = {1e9,0};
ff(i,1,n){
ff(j,1,m){
kurac[i + j].xx = min(kurac[i + j].xx, j);
kurac[i + j].yy = max(kurac[i + j].yy, j);
}
}
ff(i,1,n){
ff(j,1,m){
if(mat[i][j] != 1)continue;
if(mat[i][j - 1] == 0 && mat[i][j + 1] == 2 && j > 1 ){
moze[i][j][0] = 1;
}
if(mat[i - 1][j] == 0 && mat[i + 1][j] == 2 && i > 1){
moze[i][j][1] = 1;
}
}
}
int res = 0;
ff(s,2,n + m){
ff(i,1,m)dp[i][0] = dp[i][1] = dp[i][2] = 0;
int l = kurac[s].xx;
int r = kurac[s].yy;
dp[l][0] = 0;
if(moze[s - l][l][0])dp[l][1] = 1;
else dp[l][1] = -1e9;
if(moze[s - l][l][1])dp[l][2] = 1;
else dp[l][2] = -1e9;
ff(j,l + 1,r){
dp[j][0] = max(dp[j - 1][0], max(dp[j - 1][1], dp[j - 1][2]));
dp[j][0] = max(dp[j][0], 0);
dp[j][1] = dp[j][2] = -1e9;
if(moze[s - j][j][0])dp[j][1] = max(dp[j - 1][0], dp[j - 1][1]) + 1;
if(moze[s - j][j][1])dp[j][2] = max(dp[j - 1][0], dp[j - 1][2]) + 1;
}
res += max(dp[r][0], max(dp[r][1], dp[r][2]));
}
cout << res << "\n";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
0 ms |
384 KB |
Output is correct |
3 |
Correct |
0 ms |
384 KB |
Output is correct |
4 |
Correct |
0 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
0 ms |
384 KB |
Output is correct |
7 |
Correct |
0 ms |
384 KB |
Output is correct |
8 |
Correct |
0 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
0 ms |
384 KB |
Output is correct |
12 |
Correct |
0 ms |
384 KB |
Output is correct |
13 |
Correct |
0 ms |
384 KB |
Output is correct |
14 |
Correct |
0 ms |
384 KB |
Output is correct |
15 |
Correct |
0 ms |
384 KB |
Output is correct |
16 |
Correct |
0 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
0 ms |
384 KB |
Output is correct |
3 |
Correct |
0 ms |
384 KB |
Output is correct |
4 |
Correct |
0 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
0 ms |
384 KB |
Output is correct |
7 |
Correct |
0 ms |
384 KB |
Output is correct |
8 |
Correct |
0 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
0 ms |
384 KB |
Output is correct |
12 |
Correct |
0 ms |
384 KB |
Output is correct |
13 |
Correct |
0 ms |
384 KB |
Output is correct |
14 |
Correct |
0 ms |
384 KB |
Output is correct |
15 |
Correct |
0 ms |
384 KB |
Output is correct |
16 |
Correct |
0 ms |
384 KB |
Output is correct |
17 |
Correct |
0 ms |
404 KB |
Output is correct |
18 |
Correct |
0 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
1 ms |
512 KB |
Output is correct |
21 |
Correct |
1 ms |
512 KB |
Output is correct |
22 |
Correct |
0 ms |
512 KB |
Output is correct |
23 |
Correct |
1 ms |
384 KB |
Output is correct |
24 |
Correct |
1 ms |
512 KB |
Output is correct |
25 |
Correct |
1 ms |
384 KB |
Output is correct |
26 |
Correct |
1 ms |
384 KB |
Output is correct |
27 |
Correct |
1 ms |
512 KB |
Output is correct |
28 |
Correct |
1 ms |
512 KB |
Output is correct |
29 |
Correct |
1 ms |
512 KB |
Output is correct |
30 |
Correct |
1 ms |
384 KB |
Output is correct |
31 |
Correct |
0 ms |
384 KB |
Output is correct |
32 |
Correct |
1 ms |
384 KB |
Output is correct |
33 |
Correct |
1 ms |
512 KB |
Output is correct |
34 |
Correct |
1 ms |
512 KB |
Output is correct |
35 |
Correct |
0 ms |
512 KB |
Output is correct |
36 |
Correct |
1 ms |
512 KB |
Output is correct |
37 |
Correct |
0 ms |
512 KB |
Output is correct |
38 |
Correct |
1 ms |
512 KB |
Output is correct |
39 |
Correct |
0 ms |
512 KB |
Output is correct |
40 |
Correct |
1 ms |
512 KB |
Output is correct |
41 |
Correct |
1 ms |
512 KB |
Output is correct |
42 |
Correct |
1 ms |
512 KB |
Output is correct |
43 |
Correct |
0 ms |
512 KB |
Output is correct |
44 |
Correct |
1 ms |
512 KB |
Output is correct |
45 |
Correct |
0 ms |
512 KB |
Output is correct |
46 |
Correct |
1 ms |
512 KB |
Output is correct |
47 |
Correct |
1 ms |
512 KB |
Output is correct |
48 |
Correct |
0 ms |
512 KB |
Output is correct |
49 |
Correct |
0 ms |
512 KB |
Output is correct |
50 |
Correct |
1 ms |
512 KB |
Output is correct |
51 |
Correct |
1 ms |
512 KB |
Output is correct |
52 |
Correct |
1 ms |
640 KB |
Output is correct |
53 |
Correct |
1 ms |
512 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
0 ms |
384 KB |
Output is correct |
3 |
Correct |
0 ms |
384 KB |
Output is correct |
4 |
Correct |
0 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
0 ms |
384 KB |
Output is correct |
7 |
Correct |
0 ms |
384 KB |
Output is correct |
8 |
Correct |
0 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
0 ms |
384 KB |
Output is correct |
12 |
Correct |
0 ms |
384 KB |
Output is correct |
13 |
Correct |
0 ms |
384 KB |
Output is correct |
14 |
Correct |
0 ms |
384 KB |
Output is correct |
15 |
Correct |
0 ms |
384 KB |
Output is correct |
16 |
Correct |
0 ms |
384 KB |
Output is correct |
17 |
Correct |
0 ms |
404 KB |
Output is correct |
18 |
Correct |
0 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
1 ms |
512 KB |
Output is correct |
21 |
Correct |
1 ms |
512 KB |
Output is correct |
22 |
Correct |
0 ms |
512 KB |
Output is correct |
23 |
Correct |
1 ms |
384 KB |
Output is correct |
24 |
Correct |
1 ms |
512 KB |
Output is correct |
25 |
Correct |
1 ms |
384 KB |
Output is correct |
26 |
Correct |
1 ms |
384 KB |
Output is correct |
27 |
Correct |
1 ms |
512 KB |
Output is correct |
28 |
Correct |
1 ms |
512 KB |
Output is correct |
29 |
Correct |
1 ms |
512 KB |
Output is correct |
30 |
Correct |
1 ms |
384 KB |
Output is correct |
31 |
Correct |
0 ms |
384 KB |
Output is correct |
32 |
Correct |
1 ms |
384 KB |
Output is correct |
33 |
Correct |
1 ms |
512 KB |
Output is correct |
34 |
Correct |
1 ms |
512 KB |
Output is correct |
35 |
Correct |
0 ms |
512 KB |
Output is correct |
36 |
Correct |
1 ms |
512 KB |
Output is correct |
37 |
Correct |
0 ms |
512 KB |
Output is correct |
38 |
Correct |
1 ms |
512 KB |
Output is correct |
39 |
Correct |
0 ms |
512 KB |
Output is correct |
40 |
Correct |
1 ms |
512 KB |
Output is correct |
41 |
Correct |
1 ms |
512 KB |
Output is correct |
42 |
Correct |
1 ms |
512 KB |
Output is correct |
43 |
Correct |
0 ms |
512 KB |
Output is correct |
44 |
Correct |
1 ms |
512 KB |
Output is correct |
45 |
Correct |
0 ms |
512 KB |
Output is correct |
46 |
Correct |
1 ms |
512 KB |
Output is correct |
47 |
Correct |
1 ms |
512 KB |
Output is correct |
48 |
Correct |
0 ms |
512 KB |
Output is correct |
49 |
Correct |
0 ms |
512 KB |
Output is correct |
50 |
Correct |
1 ms |
512 KB |
Output is correct |
51 |
Correct |
1 ms |
512 KB |
Output is correct |
52 |
Correct |
1 ms |
640 KB |
Output is correct |
53 |
Correct |
1 ms |
512 KB |
Output is correct |
54 |
Correct |
11 ms |
512 KB |
Output is correct |
55 |
Correct |
8 ms |
12928 KB |
Output is correct |
56 |
Correct |
13 ms |
512 KB |
Output is correct |
57 |
Correct |
8 ms |
15488 KB |
Output is correct |
58 |
Correct |
38 ms |
15180 KB |
Output is correct |
59 |
Correct |
299 ms |
62200 KB |
Output is correct |
60 |
Correct |
301 ms |
62200 KB |
Output is correct |
61 |
Correct |
294 ms |
62200 KB |
Output is correct |
62 |
Correct |
11 ms |
416 KB |
Output is correct |
63 |
Correct |
284 ms |
62060 KB |
Output is correct |
64 |
Correct |
170 ms |
62200 KB |
Output is correct |
65 |
Correct |
173 ms |
62200 KB |
Output is correct |
66 |
Correct |
182 ms |
62200 KB |
Output is correct |
67 |
Correct |
166 ms |
54392 KB |
Output is correct |
68 |
Correct |
171 ms |
54540 KB |
Output is correct |
69 |
Correct |
181 ms |
58360 KB |
Output is correct |
70 |
Correct |
23 ms |
15232 KB |
Output is correct |
71 |
Correct |
22 ms |
15224 KB |
Output is correct |
72 |
Correct |
22 ms |
15232 KB |
Output is correct |
73 |
Correct |
23 ms |
15232 KB |
Output is correct |
74 |
Correct |
25 ms |
15232 KB |
Output is correct |
75 |
Correct |
23 ms |
15232 KB |
Output is correct |
76 |
Correct |
24 ms |
15232 KB |
Output is correct |
77 |
Correct |
24 ms |
15232 KB |
Output is correct |
78 |
Correct |
24 ms |
15232 KB |
Output is correct |
79 |
Correct |
23 ms |
15232 KB |
Output is correct |
80 |
Correct |
26 ms |
15232 KB |
Output is correct |
81 |
Correct |
24 ms |
15352 KB |
Output is correct |
82 |
Correct |
24 ms |
15232 KB |
Output is correct |
83 |
Correct |
23 ms |
15232 KB |
Output is correct |
84 |
Correct |
25 ms |
15232 KB |
Output is correct |
85 |
Correct |
22 ms |
15232 KB |
Output is correct |
86 |
Correct |
24 ms |
15232 KB |
Output is correct |
87 |
Correct |
27 ms |
15232 KB |
Output is correct |
88 |
Correct |
23 ms |
15232 KB |
Output is correct |
89 |
Correct |
23 ms |
15232 KB |
Output is correct |
90 |
Correct |
21 ms |
15232 KB |
Output is correct |