#include <bits/stdc++.h>
using namespace std;
const int MXN = 3005;
int n, m;
int grid[MXN][MXN];
int can[MXN][MXN];
int dp[MXN][3];
signed main() {
cin >> n >> m;
for (int i=1; i<=n; i++) {
string s;
cin >> s;
for (int j=1; j<=m; j++) {
if (s[j-1] == 'R') grid[i][j] = 1;
if (s[j-1] == 'G') grid[i][j] = 2;
if (s[j-1] == 'W') grid[i][j] = 3;
}
}
for (int i=1; i<=n; i++) {
for (int j=1; j<=m; j++) {
if (grid[i][j] == 2) {
if (grid[i-1][j] == 1 && grid[i+1][j] == 3) {
can[i][j] += 1;
}
if (grid[i][j-1] == 1 && grid[i][j+1] == 3) {
can[i][j] += 2;
}
}
}
}
int ans = 0;
for (int diag=2; diag<=n+m; diag++) {
dp[0][0] = dp[0][1] = dp[0][2] = 0;
int here = 0;
vector<int> vc;
vc.push_back(-1);
for (int i=1; i<=n; i++) {
int j = diag - i;
if (j >= 1 && j <= m) {
vc.push_back(can[i][j]);
}
}
for (int i=1; i<vc.size(); i++) {
dp[i][0] = dp[i][1] = dp[i][2] = 0;
dp[i][0] = max(max(dp[i-1][0], dp[i-1][1]), dp[i-1][2]);
if (vc[i] & 1) {
dp[i][1] = max(dp[i][1], 1 + max(dp[i-1][0], dp[i-1][1]));
}
if (vc[i] & 2) {
dp[i][2] = max(dp[i][2], 1 + max(dp[i-1][0], dp[i-1][2]));
}
here = max(here, max(max(dp[i][0], dp[i][1]), dp[i][2]));
}
ans += here;
}
cout << ans << endl;
}
Compilation message
dango_maker.cpp: In function 'int main()':
dango_maker.cpp:50:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
50 | for (int i=1; i<vc.size(); i++) {
| ~^~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 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 |
0 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 |
0 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 |
1 ms |
384 KB |
Output is correct |
15 |
Correct |
0 ms |
384 KB |
Output is correct |
16 |
Correct |
1 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 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 |
0 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 |
0 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 |
1 ms |
384 KB |
Output is correct |
15 |
Correct |
0 ms |
384 KB |
Output is correct |
16 |
Correct |
1 ms |
384 KB |
Output is correct |
17 |
Correct |
0 ms |
384 KB |
Output is correct |
18 |
Correct |
0 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
0 ms |
384 KB |
Output is correct |
21 |
Correct |
1 ms |
384 KB |
Output is correct |
22 |
Correct |
0 ms |
384 KB |
Output is correct |
23 |
Correct |
0 ms |
384 KB |
Output is correct |
24 |
Correct |
0 ms |
384 KB |
Output is correct |
25 |
Correct |
0 ms |
384 KB |
Output is correct |
26 |
Correct |
0 ms |
384 KB |
Output is correct |
27 |
Correct |
0 ms |
384 KB |
Output is correct |
28 |
Correct |
0 ms |
384 KB |
Output is correct |
29 |
Correct |
0 ms |
384 KB |
Output is correct |
30 |
Correct |
0 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 |
0 ms |
384 KB |
Output is correct |
34 |
Correct |
1 ms |
384 KB |
Output is correct |
35 |
Correct |
0 ms |
384 KB |
Output is correct |
36 |
Correct |
1 ms |
384 KB |
Output is correct |
37 |
Correct |
1 ms |
384 KB |
Output is correct |
38 |
Correct |
1 ms |
384 KB |
Output is correct |
39 |
Correct |
1 ms |
384 KB |
Output is correct |
40 |
Correct |
1 ms |
384 KB |
Output is correct |
41 |
Correct |
1 ms |
384 KB |
Output is correct |
42 |
Correct |
1 ms |
384 KB |
Output is correct |
43 |
Correct |
1 ms |
384 KB |
Output is correct |
44 |
Correct |
1 ms |
384 KB |
Output is correct |
45 |
Correct |
1 ms |
384 KB |
Output is correct |
46 |
Correct |
0 ms |
384 KB |
Output is correct |
47 |
Correct |
1 ms |
384 KB |
Output is correct |
48 |
Correct |
0 ms |
384 KB |
Output is correct |
49 |
Correct |
1 ms |
384 KB |
Output is correct |
50 |
Correct |
1 ms |
384 KB |
Output is correct |
51 |
Correct |
1 ms |
384 KB |
Output is correct |
52 |
Correct |
1 ms |
384 KB |
Output is correct |
53 |
Correct |
1 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 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 |
0 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 |
0 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 |
1 ms |
384 KB |
Output is correct |
15 |
Correct |
0 ms |
384 KB |
Output is correct |
16 |
Correct |
1 ms |
384 KB |
Output is correct |
17 |
Correct |
0 ms |
384 KB |
Output is correct |
18 |
Correct |
0 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
0 ms |
384 KB |
Output is correct |
21 |
Correct |
1 ms |
384 KB |
Output is correct |
22 |
Correct |
0 ms |
384 KB |
Output is correct |
23 |
Correct |
0 ms |
384 KB |
Output is correct |
24 |
Correct |
0 ms |
384 KB |
Output is correct |
25 |
Correct |
0 ms |
384 KB |
Output is correct |
26 |
Correct |
0 ms |
384 KB |
Output is correct |
27 |
Correct |
0 ms |
384 KB |
Output is correct |
28 |
Correct |
0 ms |
384 KB |
Output is correct |
29 |
Correct |
0 ms |
384 KB |
Output is correct |
30 |
Correct |
0 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 |
0 ms |
384 KB |
Output is correct |
34 |
Correct |
1 ms |
384 KB |
Output is correct |
35 |
Correct |
0 ms |
384 KB |
Output is correct |
36 |
Correct |
1 ms |
384 KB |
Output is correct |
37 |
Correct |
1 ms |
384 KB |
Output is correct |
38 |
Correct |
1 ms |
384 KB |
Output is correct |
39 |
Correct |
1 ms |
384 KB |
Output is correct |
40 |
Correct |
1 ms |
384 KB |
Output is correct |
41 |
Correct |
1 ms |
384 KB |
Output is correct |
42 |
Correct |
1 ms |
384 KB |
Output is correct |
43 |
Correct |
1 ms |
384 KB |
Output is correct |
44 |
Correct |
1 ms |
384 KB |
Output is correct |
45 |
Correct |
1 ms |
384 KB |
Output is correct |
46 |
Correct |
0 ms |
384 KB |
Output is correct |
47 |
Correct |
1 ms |
384 KB |
Output is correct |
48 |
Correct |
0 ms |
384 KB |
Output is correct |
49 |
Correct |
1 ms |
384 KB |
Output is correct |
50 |
Correct |
1 ms |
384 KB |
Output is correct |
51 |
Correct |
1 ms |
384 KB |
Output is correct |
52 |
Correct |
1 ms |
384 KB |
Output is correct |
53 |
Correct |
1 ms |
384 KB |
Output is correct |
54 |
Correct |
1 ms |
384 KB |
Output is correct |
55 |
Correct |
21 ms |
12928 KB |
Output is correct |
56 |
Correct |
2 ms |
512 KB |
Output is correct |
57 |
Correct |
15 ms |
15488 KB |
Output is correct |
58 |
Correct |
85 ms |
17076 KB |
Output is correct |
59 |
Correct |
750 ms |
79932 KB |
Output is correct |
60 |
Correct |
754 ms |
79992 KB |
Output is correct |
61 |
Correct |
759 ms |
80012 KB |
Output is correct |
62 |
Correct |
1 ms |
384 KB |
Output is correct |
63 |
Correct |
724 ms |
79736 KB |
Output is correct |
64 |
Correct |
629 ms |
79744 KB |
Output is correct |
65 |
Correct |
650 ms |
80008 KB |
Output is correct |
66 |
Correct |
635 ms |
79864 KB |
Output is correct |
67 |
Correct |
609 ms |
60408 KB |
Output is correct |
68 |
Correct |
607 ms |
60536 KB |
Output is correct |
69 |
Correct |
632 ms |
66040 KB |
Output is correct |
70 |
Correct |
73 ms |
17272 KB |
Output is correct |
71 |
Correct |
72 ms |
17144 KB |
Output is correct |
72 |
Correct |
71 ms |
17144 KB |
Output is correct |
73 |
Correct |
72 ms |
17144 KB |
Output is correct |
74 |
Correct |
71 ms |
17144 KB |
Output is correct |
75 |
Correct |
73 ms |
17184 KB |
Output is correct |
76 |
Correct |
75 ms |
17144 KB |
Output is correct |
77 |
Correct |
74 ms |
17196 KB |
Output is correct |
78 |
Correct |
72 ms |
17144 KB |
Output is correct |
79 |
Correct |
78 ms |
17136 KB |
Output is correct |
80 |
Correct |
71 ms |
17168 KB |
Output is correct |
81 |
Correct |
70 ms |
17200 KB |
Output is correct |
82 |
Correct |
72 ms |
17252 KB |
Output is correct |
83 |
Correct |
72 ms |
17272 KB |
Output is correct |
84 |
Correct |
73 ms |
17144 KB |
Output is correct |
85 |
Correct |
71 ms |
17192 KB |
Output is correct |
86 |
Correct |
71 ms |
17144 KB |
Output is correct |
87 |
Correct |
71 ms |
17144 KB |
Output is correct |
88 |
Correct |
71 ms |
17324 KB |
Output is correct |
89 |
Correct |
73 ms |
17144 KB |
Output is correct |
90 |
Correct |
72 ms |
17144 KB |
Output is correct |