#include <bits/stdc++.h>
using namespace std;
#define EmiliaMyWife ios::sync_with_stdio(0); cin.tie(0);
using ll = int64_t;
using uint = uint32_t;
using ull = uint64_t;
using ld = long double;
const int INF = 0x3f3f3f3f;
const int MOD = 1e9 + 7;
const double EPS = 1e-8;
const ll LINF = ll(4e18) + ll(2e15);
static int LamyIsCute = []() {
EmiliaMyWife
return 48763;
}();
signed main() {
int n, m;
cin >> n >> m;
vector<string> arr(n);
for(int i = 0; i < n; i++)
cin >> arr[i];
vector<vector<bool>> ver(n, vector<bool>(m)), hor = ver;
for(int i = 0; i + 2 < n; i++)
for(int j = 0; j < m; j++)
if(arr[i][j] == 'R' && arr[i + 1][j] == 'G' && arr[i + 2][j] == 'W')
ver[i][j] = ver[i + 1][j] = ver[i + 2][j] = true;
for(int i = 0; i < n; i++)
for(int j = 0; j + 2 < m; j++)
if(arr[i][j] == 'R' && arr[i][j + 1] == 'G' && arr[i][j + 2] == 'W')
hor[i][j] = hor[i][j + 1] = hor[i][j + 2] = true;
vector<array<int, 3>> dp(n);
int ans = 0;
for(int s = 1; s < n + m - 1; s++) {
fill(dp.begin(), dp.end(), array<int, 3>());
for(int i = max(0, s - m + 1); i <= min(n - 1, s); i++) {
int j = s - i;
if(i)
dp[i][0] = max({dp[i - 1][0], dp[i - 1][1], dp[i - 1][2]});
if(arr[i][j] == 'G' && ver[i][j])
dp[i][1] = (i ? max(dp[i - 1][0], dp[i - 1][1]) : 0) + 1;
if(arr[i][j] == 'G' && hor[i][j])
dp[i][2] = (i ? max(dp[i - 1][0], dp[i - 1][2]) : 0) + 1;
}
int x = min(n - 1, s);
ans += max({dp[x][0], dp[x][1], dp[x][2]});
}
cout << ans << '\n';
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
312 KB |
Output is correct |
| 6 |
Correct |
1 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
1 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
1 ms |
204 KB |
Output is correct |
| 11 |
Correct |
1 ms |
204 KB |
Output is correct |
| 12 |
Correct |
0 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
312 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
0 ms |
204 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
312 KB |
Output is correct |
| 6 |
Correct |
1 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
1 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
1 ms |
204 KB |
Output is correct |
| 11 |
Correct |
1 ms |
204 KB |
Output is correct |
| 12 |
Correct |
0 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
312 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
0 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
308 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
1 ms |
312 KB |
Output is correct |
| 20 |
Correct |
0 ms |
204 KB |
Output is correct |
| 21 |
Correct |
1 ms |
308 KB |
Output is correct |
| 22 |
Correct |
1 ms |
304 KB |
Output is correct |
| 23 |
Correct |
1 ms |
204 KB |
Output is correct |
| 24 |
Correct |
1 ms |
204 KB |
Output is correct |
| 25 |
Correct |
0 ms |
312 KB |
Output is correct |
| 26 |
Correct |
1 ms |
204 KB |
Output is correct |
| 27 |
Correct |
1 ms |
204 KB |
Output is correct |
| 28 |
Correct |
1 ms |
204 KB |
Output is correct |
| 29 |
Correct |
1 ms |
204 KB |
Output is correct |
| 30 |
Correct |
1 ms |
316 KB |
Output is correct |
| 31 |
Correct |
0 ms |
204 KB |
Output is correct |
| 32 |
Correct |
0 ms |
204 KB |
Output is correct |
| 33 |
Correct |
0 ms |
316 KB |
Output is correct |
| 34 |
Correct |
0 ms |
204 KB |
Output is correct |
| 35 |
Correct |
0 ms |
204 KB |
Output is correct |
| 36 |
Correct |
1 ms |
204 KB |
Output is correct |
| 37 |
Correct |
1 ms |
308 KB |
Output is correct |
| 38 |
Correct |
0 ms |
204 KB |
Output is correct |
| 39 |
Correct |
0 ms |
204 KB |
Output is correct |
| 40 |
Correct |
1 ms |
204 KB |
Output is correct |
| 41 |
Correct |
0 ms |
204 KB |
Output is correct |
| 42 |
Correct |
0 ms |
204 KB |
Output is correct |
| 43 |
Correct |
1 ms |
204 KB |
Output is correct |
| 44 |
Correct |
1 ms |
204 KB |
Output is correct |
| 45 |
Correct |
0 ms |
204 KB |
Output is correct |
| 46 |
Correct |
1 ms |
204 KB |
Output is correct |
| 47 |
Correct |
1 ms |
204 KB |
Output is correct |
| 48 |
Correct |
1 ms |
308 KB |
Output is correct |
| 49 |
Correct |
1 ms |
312 KB |
Output is correct |
| 50 |
Correct |
1 ms |
204 KB |
Output is correct |
| 51 |
Correct |
1 ms |
204 KB |
Output is correct |
| 52 |
Correct |
0 ms |
204 KB |
Output is correct |
| 53 |
Correct |
0 ms |
204 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
312 KB |
Output is correct |
| 6 |
Correct |
1 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
1 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
1 ms |
204 KB |
Output is correct |
| 11 |
Correct |
1 ms |
204 KB |
Output is correct |
| 12 |
Correct |
0 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
312 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
0 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
308 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
1 ms |
312 KB |
Output is correct |
| 20 |
Correct |
0 ms |
204 KB |
Output is correct |
| 21 |
Correct |
1 ms |
308 KB |
Output is correct |
| 22 |
Correct |
1 ms |
304 KB |
Output is correct |
| 23 |
Correct |
1 ms |
204 KB |
Output is correct |
| 24 |
Correct |
1 ms |
204 KB |
Output is correct |
| 25 |
Correct |
0 ms |
312 KB |
Output is correct |
| 26 |
Correct |
1 ms |
204 KB |
Output is correct |
| 27 |
Correct |
1 ms |
204 KB |
Output is correct |
| 28 |
Correct |
1 ms |
204 KB |
Output is correct |
| 29 |
Correct |
1 ms |
204 KB |
Output is correct |
| 30 |
Correct |
1 ms |
316 KB |
Output is correct |
| 31 |
Correct |
0 ms |
204 KB |
Output is correct |
| 32 |
Correct |
0 ms |
204 KB |
Output is correct |
| 33 |
Correct |
0 ms |
316 KB |
Output is correct |
| 34 |
Correct |
0 ms |
204 KB |
Output is correct |
| 35 |
Correct |
0 ms |
204 KB |
Output is correct |
| 36 |
Correct |
1 ms |
204 KB |
Output is correct |
| 37 |
Correct |
1 ms |
308 KB |
Output is correct |
| 38 |
Correct |
0 ms |
204 KB |
Output is correct |
| 39 |
Correct |
0 ms |
204 KB |
Output is correct |
| 40 |
Correct |
1 ms |
204 KB |
Output is correct |
| 41 |
Correct |
0 ms |
204 KB |
Output is correct |
| 42 |
Correct |
0 ms |
204 KB |
Output is correct |
| 43 |
Correct |
1 ms |
204 KB |
Output is correct |
| 44 |
Correct |
1 ms |
204 KB |
Output is correct |
| 45 |
Correct |
0 ms |
204 KB |
Output is correct |
| 46 |
Correct |
1 ms |
204 KB |
Output is correct |
| 47 |
Correct |
1 ms |
204 KB |
Output is correct |
| 48 |
Correct |
1 ms |
308 KB |
Output is correct |
| 49 |
Correct |
1 ms |
312 KB |
Output is correct |
| 50 |
Correct |
1 ms |
204 KB |
Output is correct |
| 51 |
Correct |
1 ms |
204 KB |
Output is correct |
| 52 |
Correct |
0 ms |
204 KB |
Output is correct |
| 53 |
Correct |
0 ms |
204 KB |
Output is correct |
| 54 |
Correct |
1 ms |
204 KB |
Output is correct |
| 55 |
Correct |
11 ms |
828 KB |
Output is correct |
| 56 |
Correct |
1 ms |
332 KB |
Output is correct |
| 57 |
Correct |
6 ms |
712 KB |
Output is correct |
| 58 |
Correct |
26 ms |
2740 KB |
Output is correct |
| 59 |
Correct |
255 ms |
21420 KB |
Output is correct |
| 60 |
Correct |
275 ms |
21572 KB |
Output is correct |
| 61 |
Correct |
236 ms |
21508 KB |
Output is correct |
| 62 |
Correct |
1 ms |
304 KB |
Output is correct |
| 63 |
Correct |
273 ms |
20652 KB |
Output is correct |
| 64 |
Correct |
143 ms |
21316 KB |
Output is correct |
| 65 |
Correct |
167 ms |
21316 KB |
Output is correct |
| 66 |
Correct |
142 ms |
21404 KB |
Output is correct |
| 67 |
Correct |
126 ms |
21420 KB |
Output is correct |
| 68 |
Correct |
132 ms |
21516 KB |
Output is correct |
| 69 |
Correct |
162 ms |
21424 KB |
Output is correct |
| 70 |
Correct |
15 ms |
2752 KB |
Output is correct |
| 71 |
Correct |
15 ms |
2656 KB |
Output is correct |
| 72 |
Correct |
14 ms |
2632 KB |
Output is correct |
| 73 |
Correct |
15 ms |
2620 KB |
Output is correct |
| 74 |
Correct |
16 ms |
2636 KB |
Output is correct |
| 75 |
Correct |
15 ms |
2632 KB |
Output is correct |
| 76 |
Correct |
15 ms |
2636 KB |
Output is correct |
| 77 |
Correct |
15 ms |
2616 KB |
Output is correct |
| 78 |
Correct |
16 ms |
2604 KB |
Output is correct |
| 79 |
Correct |
19 ms |
2640 KB |
Output is correct |
| 80 |
Correct |
18 ms |
2752 KB |
Output is correct |
| 81 |
Correct |
14 ms |
2724 KB |
Output is correct |
| 82 |
Correct |
15 ms |
2628 KB |
Output is correct |
| 83 |
Correct |
15 ms |
2644 KB |
Output is correct |
| 84 |
Correct |
15 ms |
2616 KB |
Output is correct |
| 85 |
Correct |
15 ms |
2616 KB |
Output is correct |
| 86 |
Correct |
14 ms |
2628 KB |
Output is correct |
| 87 |
Correct |
16 ms |
2624 KB |
Output is correct |
| 88 |
Correct |
19 ms |
2748 KB |
Output is correct |
| 89 |
Correct |
15 ms |
2748 KB |
Output is correct |
| 90 |
Correct |
15 ms |
2628 KB |
Output is correct |
