#include <cstdio>
#include <algorithm>
#include <vector>
using namespace std;
const int N = 3010;
int n, m;
char C[N][N];
bool stick(int x, int y, int d) {
if(d == 1) return y > 0 && y < m - 1 && C[x][y] == 'G' && C[x][y - 1] == 'R' && C[x][y + 1] == 'W';
return x > 0 && x < n - 1 && C[x][y] == 'G' && C[x - 1][y] == 'R' && C[x + 1][y] == 'W';
}
int DP[N][N][3];
int main() {
scanf("%d%d", &n, &m);
for(int i = 0; i < n; ++i)
for(int j = 0; j < m; ++j) scanf(" %c", &C[i][j]);
int ans = 0;
for(int i = 0; i < n; ++i)
for(int j = 0; j < m; ++j) {
int *u = DP[i][j];
u[0] = 0;
u[1] = stick(i, j, 1);
u[2] = stick(i, j, 2);
if(i > 0 && j < m - 1) {
int *v = DP[i - 1][j + 1];
u[0] = max(u[0], max({v[0], v[1], v[2]}));
u[1] = max(u[1], stick(i, j, 1) + max(v[0], v[1]));
u[2] = max(u[2], stick(i, j, 2) + max(v[0], v[2]));
// if(i == 3 && j == 1) printf("%d %d %d\n", v[0], v[1], v[2]);
}
if(i == n - 1 || j == 0) ans += max({u[0], u[1], u[2]});
// printf("{%d %d %d}%c", u[0], u[1], u[2], " \n"[j == m - 1]);
}
printf("%d\n", ans);
return 0;
}
Compilation message
dango_maker.cpp: In function 'int main()':
dango_maker.cpp:20:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
20 | scanf("%d%d", &n, &m);
| ~~~~~^~~~~~~~~~~~~~~~
dango_maker.cpp:22:35: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
22 | for(int j = 0; j < m; ++j) scanf(" %c", &C[i][j]);
| ~~~~~^~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2400 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2476 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
0 ms |
2392 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
0 ms |
2392 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
0 ms |
2396 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2400 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2476 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
0 ms |
2392 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
0 ms |
2392 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
0 ms |
2476 KB |
Output is correct |
| 21 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 23 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 25 |
Correct |
2 ms |
2648 KB |
Output is correct |
| 26 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 27 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 28 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 29 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 30 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 31 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 32 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 33 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 34 |
Correct |
0 ms |
2476 KB |
Output is correct |
| 35 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 36 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 37 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 38 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 39 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 40 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 41 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 42 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 43 |
Correct |
1 ms |
2480 KB |
Output is correct |
| 44 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 45 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 46 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 47 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 48 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 49 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 50 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 51 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 52 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 53 |
Correct |
0 ms |
2396 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2400 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2476 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
0 ms |
2392 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
0 ms |
2392 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
0 ms |
2476 KB |
Output is correct |
| 21 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 23 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 25 |
Correct |
2 ms |
2648 KB |
Output is correct |
| 26 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 27 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 28 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 29 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 30 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 31 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 32 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 33 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 34 |
Correct |
0 ms |
2476 KB |
Output is correct |
| 35 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 36 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 37 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 38 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 39 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 40 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 41 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 42 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 43 |
Correct |
1 ms |
2480 KB |
Output is correct |
| 44 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 45 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 46 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 47 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 48 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 49 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 50 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 51 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 52 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 53 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 54 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 55 |
Correct |
26 ms |
76348 KB |
Output is correct |
| 56 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 57 |
Correct |
9 ms |
69212 KB |
Output is correct |
| 58 |
Correct |
51 ms |
40860 KB |
Output is correct |
| 59 |
Correct |
432 ms |
124240 KB |
Output is correct |
| 60 |
Correct |
460 ms |
124304 KB |
Output is correct |
| 61 |
Correct |
440 ms |
124336 KB |
Output is correct |
| 62 |
Correct |
2 ms |
2392 KB |
Output is correct |
| 63 |
Correct |
421 ms |
123988 KB |
Output is correct |
| 64 |
Correct |
380 ms |
124244 KB |
Output is correct |
| 65 |
Correct |
378 ms |
124296 KB |
Output is correct |
| 66 |
Correct |
393 ms |
124528 KB |
Output is correct |
| 67 |
Correct |
374 ms |
124280 KB |
Output is correct |
| 68 |
Correct |
386 ms |
124300 KB |
Output is correct |
| 69 |
Correct |
409 ms |
124244 KB |
Output is correct |
| 70 |
Correct |
44 ms |
40788 KB |
Output is correct |
| 71 |
Correct |
44 ms |
40788 KB |
Output is correct |
| 72 |
Correct |
44 ms |
40788 KB |
Output is correct |
| 73 |
Correct |
48 ms |
40788 KB |
Output is correct |
| 74 |
Correct |
44 ms |
40792 KB |
Output is correct |
| 75 |
Correct |
46 ms |
40784 KB |
Output is correct |
| 76 |
Correct |
55 ms |
40848 KB |
Output is correct |
| 77 |
Correct |
45 ms |
40856 KB |
Output is correct |
| 78 |
Correct |
43 ms |
40784 KB |
Output is correct |
| 79 |
Correct |
51 ms |
40788 KB |
Output is correct |
| 80 |
Correct |
44 ms |
40788 KB |
Output is correct |
| 81 |
Correct |
44 ms |
40856 KB |
Output is correct |
| 82 |
Correct |
48 ms |
40788 KB |
Output is correct |
| 83 |
Correct |
56 ms |
40728 KB |
Output is correct |
| 84 |
Correct |
44 ms |
40828 KB |
Output is correct |
| 85 |
Correct |
44 ms |
40712 KB |
Output is correct |
| 86 |
Correct |
46 ms |
40888 KB |
Output is correct |
| 87 |
Correct |
47 ms |
40876 KB |
Output is correct |
| 88 |
Correct |
43 ms |
40852 KB |
Output is correct |
| 89 |
Correct |
48 ms |
40788 KB |
Output is correct |
| 90 |
Correct |
44 ms |
40788 KB |
Output is correct |
