#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
template<class T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
template<class A> ostream& operator<<(ostream &cout, vector<A> const &v) {cout << "["; for(int i = 0; i < v.size(); i++) {if (i) cout << ", "; cout << v[i];} return cout << "]";};
template<class A, class B> ostream& operator<<(ostream &cout, const pair<A,B> &x) {return cout << "(" <<x.first << ", " << x.second << ")";};
template<class T> void pv(T a, T b) {cerr << "["; for (T i = a; i != b; ++i) cerr << *i << " "; cerr << "]\n";}
void _print() {cerr << "]\n";}
template<class T, class... V> void _print(T t, V... v) {cerr << t; if (sizeof...(v)) cerr << ", "; _print(v...);}
#define debug(x...) cerr << "[" << #x << "] = [", _print(x)
#define fi first
#define se second
#define SZ(x) (int)((x).size())
#define pii pair<int,int>
int n,m;
string grid[3000];
bool exist(int a, int b, int c) {
if (a < 0 || a >= n || b < 0 || b >= m) return false;
if (c == 0) {
if (a-1 >= 0 && a+1 < n && grid[a-1][b] == 'R' && grid[a][b] == 'G' && grid[a+1][b] == 'W') return true;
} else {
if (b-1 >= 0 && b+1 < m && grid[a][b-1] == 'R' && grid[a][b] == 'G' && grid[a][b+1] == 'W') return true;
}
return false;
}
vector<pii> diag[6005];
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
cin >> n >> m;
for (int q = 0; q < n; q++) cin >> grid[q];
for (int q = 0; q < n; q++) {
for (int w = 0; w < m; w++) {
diag[q+w].emplace_back(q,w);
}
}
int ans = 0;
for (int q = 0; q < n+m-1; q++) {
vector<vector<int>> dp(SZ(diag[q])+3, vector<int>(2));
for (int w = 2; w <= SZ(diag[q])+1; w++) {
int x = diag[q][w-2].fi, y = diag[q][w-2].se;
dp[w][0] = dp[w-1][0];
dp[w][1] = dp[w-1][1];
if (exist(x,y,0)) dp[w][0] = max(dp[w][0], max(dp[w-1][0], dp[w-2][1])+1);
if (exist(x,y,1)) dp[w][1] = max(dp[w][1], max(dp[w-2][0], dp[w-1][1])+1);
}
ans += max(dp[SZ(diag[q])+1][0], dp[SZ(diag[q])+1][1]);
}
cout << ans << '\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
460 KB |
Output is correct |
2 |
Correct |
1 ms |
460 KB |
Output is correct |
3 |
Correct |
1 ms |
460 KB |
Output is correct |
4 |
Correct |
1 ms |
460 KB |
Output is correct |
5 |
Correct |
1 ms |
460 KB |
Output is correct |
6 |
Correct |
1 ms |
460 KB |
Output is correct |
7 |
Correct |
1 ms |
460 KB |
Output is correct |
8 |
Correct |
1 ms |
460 KB |
Output is correct |
9 |
Correct |
1 ms |
460 KB |
Output is correct |
10 |
Correct |
1 ms |
460 KB |
Output is correct |
11 |
Correct |
1 ms |
460 KB |
Output is correct |
12 |
Correct |
1 ms |
460 KB |
Output is correct |
13 |
Correct |
1 ms |
460 KB |
Output is correct |
14 |
Correct |
1 ms |
560 KB |
Output is correct |
15 |
Correct |
1 ms |
460 KB |
Output is correct |
16 |
Correct |
1 ms |
460 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
460 KB |
Output is correct |
2 |
Correct |
1 ms |
460 KB |
Output is correct |
3 |
Correct |
1 ms |
460 KB |
Output is correct |
4 |
Correct |
1 ms |
460 KB |
Output is correct |
5 |
Correct |
1 ms |
460 KB |
Output is correct |
6 |
Correct |
1 ms |
460 KB |
Output is correct |
7 |
Correct |
1 ms |
460 KB |
Output is correct |
8 |
Correct |
1 ms |
460 KB |
Output is correct |
9 |
Correct |
1 ms |
460 KB |
Output is correct |
10 |
Correct |
1 ms |
460 KB |
Output is correct |
11 |
Correct |
1 ms |
460 KB |
Output is correct |
12 |
Correct |
1 ms |
460 KB |
Output is correct |
13 |
Correct |
1 ms |
460 KB |
Output is correct |
14 |
Correct |
1 ms |
560 KB |
Output is correct |
15 |
Correct |
1 ms |
460 KB |
Output is correct |
16 |
Correct |
1 ms |
460 KB |
Output is correct |
17 |
Correct |
1 ms |
460 KB |
Output is correct |
18 |
Correct |
1 ms |
460 KB |
Output is correct |
19 |
Correct |
1 ms |
460 KB |
Output is correct |
20 |
Correct |
1 ms |
460 KB |
Output is correct |
21 |
Correct |
1 ms |
460 KB |
Output is correct |
22 |
Correct |
1 ms |
460 KB |
Output is correct |
23 |
Correct |
1 ms |
460 KB |
Output is correct |
24 |
Correct |
1 ms |
460 KB |
Output is correct |
25 |
Correct |
1 ms |
460 KB |
Output is correct |
26 |
Correct |
1 ms |
556 KB |
Output is correct |
27 |
Correct |
1 ms |
460 KB |
Output is correct |
28 |
Correct |
1 ms |
460 KB |
Output is correct |
29 |
Correct |
1 ms |
460 KB |
Output is correct |
30 |
Correct |
1 ms |
460 KB |
Output is correct |
31 |
Correct |
1 ms |
460 KB |
Output is correct |
32 |
Correct |
1 ms |
460 KB |
Output is correct |
33 |
Correct |
1 ms |
460 KB |
Output is correct |
34 |
Correct |
1 ms |
460 KB |
Output is correct |
35 |
Correct |
1 ms |
460 KB |
Output is correct |
36 |
Correct |
1 ms |
464 KB |
Output is correct |
37 |
Correct |
1 ms |
460 KB |
Output is correct |
38 |
Correct |
1 ms |
560 KB |
Output is correct |
39 |
Correct |
1 ms |
460 KB |
Output is correct |
40 |
Correct |
1 ms |
460 KB |
Output is correct |
41 |
Correct |
1 ms |
460 KB |
Output is correct |
42 |
Correct |
1 ms |
556 KB |
Output is correct |
43 |
Correct |
1 ms |
568 KB |
Output is correct |
44 |
Correct |
1 ms |
460 KB |
Output is correct |
45 |
Correct |
1 ms |
460 KB |
Output is correct |
46 |
Correct |
1 ms |
460 KB |
Output is correct |
47 |
Correct |
1 ms |
460 KB |
Output is correct |
48 |
Correct |
1 ms |
460 KB |
Output is correct |
49 |
Correct |
1 ms |
460 KB |
Output is correct |
50 |
Correct |
1 ms |
460 KB |
Output is correct |
51 |
Correct |
1 ms |
460 KB |
Output is correct |
52 |
Correct |
1 ms |
460 KB |
Output is correct |
53 |
Correct |
1 ms |
460 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
460 KB |
Output is correct |
2 |
Correct |
1 ms |
460 KB |
Output is correct |
3 |
Correct |
1 ms |
460 KB |
Output is correct |
4 |
Correct |
1 ms |
460 KB |
Output is correct |
5 |
Correct |
1 ms |
460 KB |
Output is correct |
6 |
Correct |
1 ms |
460 KB |
Output is correct |
7 |
Correct |
1 ms |
460 KB |
Output is correct |
8 |
Correct |
1 ms |
460 KB |
Output is correct |
9 |
Correct |
1 ms |
460 KB |
Output is correct |
10 |
Correct |
1 ms |
460 KB |
Output is correct |
11 |
Correct |
1 ms |
460 KB |
Output is correct |
12 |
Correct |
1 ms |
460 KB |
Output is correct |
13 |
Correct |
1 ms |
460 KB |
Output is correct |
14 |
Correct |
1 ms |
560 KB |
Output is correct |
15 |
Correct |
1 ms |
460 KB |
Output is correct |
16 |
Correct |
1 ms |
460 KB |
Output is correct |
17 |
Correct |
1 ms |
460 KB |
Output is correct |
18 |
Correct |
1 ms |
460 KB |
Output is correct |
19 |
Correct |
1 ms |
460 KB |
Output is correct |
20 |
Correct |
1 ms |
460 KB |
Output is correct |
21 |
Correct |
1 ms |
460 KB |
Output is correct |
22 |
Correct |
1 ms |
460 KB |
Output is correct |
23 |
Correct |
1 ms |
460 KB |
Output is correct |
24 |
Correct |
1 ms |
460 KB |
Output is correct |
25 |
Correct |
1 ms |
460 KB |
Output is correct |
26 |
Correct |
1 ms |
556 KB |
Output is correct |
27 |
Correct |
1 ms |
460 KB |
Output is correct |
28 |
Correct |
1 ms |
460 KB |
Output is correct |
29 |
Correct |
1 ms |
460 KB |
Output is correct |
30 |
Correct |
1 ms |
460 KB |
Output is correct |
31 |
Correct |
1 ms |
460 KB |
Output is correct |
32 |
Correct |
1 ms |
460 KB |
Output is correct |
33 |
Correct |
1 ms |
460 KB |
Output is correct |
34 |
Correct |
1 ms |
460 KB |
Output is correct |
35 |
Correct |
1 ms |
460 KB |
Output is correct |
36 |
Correct |
1 ms |
464 KB |
Output is correct |
37 |
Correct |
1 ms |
460 KB |
Output is correct |
38 |
Correct |
1 ms |
560 KB |
Output is correct |
39 |
Correct |
1 ms |
460 KB |
Output is correct |
40 |
Correct |
1 ms |
460 KB |
Output is correct |
41 |
Correct |
1 ms |
460 KB |
Output is correct |
42 |
Correct |
1 ms |
556 KB |
Output is correct |
43 |
Correct |
1 ms |
568 KB |
Output is correct |
44 |
Correct |
1 ms |
460 KB |
Output is correct |
45 |
Correct |
1 ms |
460 KB |
Output is correct |
46 |
Correct |
1 ms |
460 KB |
Output is correct |
47 |
Correct |
1 ms |
460 KB |
Output is correct |
48 |
Correct |
1 ms |
460 KB |
Output is correct |
49 |
Correct |
1 ms |
460 KB |
Output is correct |
50 |
Correct |
1 ms |
460 KB |
Output is correct |
51 |
Correct |
1 ms |
460 KB |
Output is correct |
52 |
Correct |
1 ms |
460 KB |
Output is correct |
53 |
Correct |
1 ms |
460 KB |
Output is correct |
54 |
Correct |
1 ms |
588 KB |
Output is correct |
55 |
Correct |
1 ms |
588 KB |
Output is correct |
56 |
Correct |
2 ms |
844 KB |
Output is correct |
57 |
Correct |
2 ms |
716 KB |
Output is correct |
58 |
Correct |
86 ms |
13228 KB |
Output is correct |
59 |
Correct |
905 ms |
111952 KB |
Output is correct |
60 |
Correct |
897 ms |
111780 KB |
Output is correct |
61 |
Correct |
912 ms |
112076 KB |
Output is correct |
62 |
Correct |
1 ms |
588 KB |
Output is correct |
63 |
Correct |
908 ms |
108168 KB |
Output is correct |
64 |
Correct |
861 ms |
111764 KB |
Output is correct |
65 |
Correct |
826 ms |
111848 KB |
Output is correct |
66 |
Correct |
821 ms |
111736 KB |
Output is correct |
67 |
Correct |
794 ms |
111816 KB |
Output is correct |
68 |
Correct |
789 ms |
111884 KB |
Output is correct |
69 |
Correct |
812 ms |
111780 KB |
Output is correct |
70 |
Correct |
80 ms |
13124 KB |
Output is correct |
71 |
Correct |
78 ms |
13240 KB |
Output is correct |
72 |
Correct |
78 ms |
13288 KB |
Output is correct |
73 |
Correct |
80 ms |
13248 KB |
Output is correct |
74 |
Correct |
85 ms |
13132 KB |
Output is correct |
75 |
Correct |
77 ms |
13188 KB |
Output is correct |
76 |
Correct |
76 ms |
13132 KB |
Output is correct |
77 |
Correct |
78 ms |
13236 KB |
Output is correct |
78 |
Correct |
76 ms |
13128 KB |
Output is correct |
79 |
Correct |
76 ms |
13132 KB |
Output is correct |
80 |
Correct |
77 ms |
13144 KB |
Output is correct |
81 |
Correct |
78 ms |
13132 KB |
Output is correct |
82 |
Correct |
76 ms |
13184 KB |
Output is correct |
83 |
Correct |
79 ms |
13252 KB |
Output is correct |
84 |
Correct |
77 ms |
13236 KB |
Output is correct |
85 |
Correct |
77 ms |
13132 KB |
Output is correct |
86 |
Correct |
77 ms |
13132 KB |
Output is correct |
87 |
Correct |
76 ms |
13240 KB |
Output is correct |
88 |
Correct |
76 ms |
13132 KB |
Output is correct |
89 |
Correct |
80 ms |
13172 KB |
Output is correct |
90 |
Correct |
77 ms |
13244 KB |
Output is correct |