#include <stdio.h>
#include <string.h>
#define N 3000
#define M 3000
int min(int a, int b) { return a < b ? a : b; }
int max(int a, int b) { return a > b ? a : b; }
int ft[N];
void update(int i, int n, int x) {
while (i < n) {
ft[i] = max(ft[i], x);
i |= i + 1;
}
}
int query(int i) {
int x = 0;
while (i >= 0) {
x = max(x, ft[i]);
i &= i + 1, i--;
}
return x;
}
int main() {
static char cc[N][M + 1];
int n, m, i, j, ij, k;
scanf("%d%d", &n, &m);
for (i = 0; i < n; i++)
scanf("%s", cc[i]);
k = 0;
for (ij = 0; ij <= (n - 1) + (m - 1); ij++) {
memset(ft, 0, m * sizeof *ft);
for (i = min(ij, n - 1), j = ij - i; i >= 0 && j < m; i--, j++) {
if (j + 2 < m && cc[i][j] == 'R' && cc[i][j + 1] == 'G' && cc[i][j + 2] == 'W')
update(j + 2, m, query(j + 1) + 1);
if (i + 2 < n && cc[i][j] == 'R' && cc[i + 1][j] == 'G' && cc[i + 2][j] == 'W')
update(j, m, query(j - 1) + 1);
}
k += query(m - 1);
}
printf("%d\n", k);
return 0;
}
Compilation message
dango_maker.c: In function 'main':
dango_maker.c:33:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
33 | scanf("%d%d", &n, &m);
| ^~~~~~~~~~~~~~~~~~~~~
dango_maker.c:35:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
35 | scanf("%s", cc[i]);
| ^~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Correct |
1 ms |
212 KB |
Output is correct |
| 24 |
Correct |
0 ms |
212 KB |
Output is correct |
| 25 |
Correct |
1 ms |
296 KB |
Output is correct |
| 26 |
Correct |
0 ms |
212 KB |
Output is correct |
| 27 |
Correct |
0 ms |
212 KB |
Output is correct |
| 28 |
Correct |
1 ms |
288 KB |
Output is correct |
| 29 |
Correct |
1 ms |
212 KB |
Output is correct |
| 30 |
Correct |
0 ms |
292 KB |
Output is correct |
| 31 |
Correct |
1 ms |
304 KB |
Output is correct |
| 32 |
Correct |
0 ms |
212 KB |
Output is correct |
| 33 |
Correct |
1 ms |
212 KB |
Output is correct |
| 34 |
Correct |
0 ms |
212 KB |
Output is correct |
| 35 |
Correct |
0 ms |
212 KB |
Output is correct |
| 36 |
Correct |
0 ms |
212 KB |
Output is correct |
| 37 |
Correct |
0 ms |
212 KB |
Output is correct |
| 38 |
Correct |
0 ms |
212 KB |
Output is correct |
| 39 |
Correct |
1 ms |
212 KB |
Output is correct |
| 40 |
Correct |
0 ms |
212 KB |
Output is correct |
| 41 |
Correct |
0 ms |
212 KB |
Output is correct |
| 42 |
Correct |
0 ms |
212 KB |
Output is correct |
| 43 |
Correct |
0 ms |
212 KB |
Output is correct |
| 44 |
Correct |
0 ms |
212 KB |
Output is correct |
| 45 |
Correct |
0 ms |
212 KB |
Output is correct |
| 46 |
Correct |
1 ms |
212 KB |
Output is correct |
| 47 |
Correct |
1 ms |
212 KB |
Output is correct |
| 48 |
Correct |
0 ms |
288 KB |
Output is correct |
| 49 |
Correct |
0 ms |
212 KB |
Output is correct |
| 50 |
Correct |
1 ms |
212 KB |
Output is correct |
| 51 |
Correct |
1 ms |
288 KB |
Output is correct |
| 52 |
Correct |
1 ms |
292 KB |
Output is correct |
| 53 |
Correct |
1 ms |
288 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Correct |
1 ms |
212 KB |
Output is correct |
| 24 |
Correct |
0 ms |
212 KB |
Output is correct |
| 25 |
Correct |
1 ms |
296 KB |
Output is correct |
| 26 |
Correct |
0 ms |
212 KB |
Output is correct |
| 27 |
Correct |
0 ms |
212 KB |
Output is correct |
| 28 |
Correct |
1 ms |
288 KB |
Output is correct |
| 29 |
Correct |
1 ms |
212 KB |
Output is correct |
| 30 |
Correct |
0 ms |
292 KB |
Output is correct |
| 31 |
Correct |
1 ms |
304 KB |
Output is correct |
| 32 |
Correct |
0 ms |
212 KB |
Output is correct |
| 33 |
Correct |
1 ms |
212 KB |
Output is correct |
| 34 |
Correct |
0 ms |
212 KB |
Output is correct |
| 35 |
Correct |
0 ms |
212 KB |
Output is correct |
| 36 |
Correct |
0 ms |
212 KB |
Output is correct |
| 37 |
Correct |
0 ms |
212 KB |
Output is correct |
| 38 |
Correct |
0 ms |
212 KB |
Output is correct |
| 39 |
Correct |
1 ms |
212 KB |
Output is correct |
| 40 |
Correct |
0 ms |
212 KB |
Output is correct |
| 41 |
Correct |
0 ms |
212 KB |
Output is correct |
| 42 |
Correct |
0 ms |
212 KB |
Output is correct |
| 43 |
Correct |
0 ms |
212 KB |
Output is correct |
| 44 |
Correct |
0 ms |
212 KB |
Output is correct |
| 45 |
Correct |
0 ms |
212 KB |
Output is correct |
| 46 |
Correct |
1 ms |
212 KB |
Output is correct |
| 47 |
Correct |
1 ms |
212 KB |
Output is correct |
| 48 |
Correct |
0 ms |
288 KB |
Output is correct |
| 49 |
Correct |
0 ms |
212 KB |
Output is correct |
| 50 |
Correct |
1 ms |
212 KB |
Output is correct |
| 51 |
Correct |
1 ms |
288 KB |
Output is correct |
| 52 |
Correct |
1 ms |
292 KB |
Output is correct |
| 53 |
Correct |
1 ms |
288 KB |
Output is correct |
| 54 |
Correct |
1 ms |
212 KB |
Output is correct |
| 55 |
Correct |
4 ms |
9000 KB |
Output is correct |
| 56 |
Correct |
1 ms |
212 KB |
Output is correct |
| 57 |
Correct |
4 ms |
6100 KB |
Output is correct |
| 58 |
Correct |
15 ms |
4136 KB |
Output is correct |
| 59 |
Correct |
137 ms |
17784 KB |
Output is correct |
| 60 |
Correct |
135 ms |
17880 KB |
Output is correct |
| 61 |
Correct |
124 ms |
17776 KB |
Output is correct |
| 62 |
Correct |
1 ms |
212 KB |
Output is correct |
| 63 |
Correct |
124 ms |
17548 KB |
Output is correct |
| 64 |
Correct |
190 ms |
17780 KB |
Output is correct |
| 65 |
Correct |
150 ms |
17868 KB |
Output is correct |
| 66 |
Correct |
171 ms |
17876 KB |
Output is correct |
| 67 |
Correct |
104 ms |
17940 KB |
Output is correct |
| 68 |
Correct |
113 ms |
17876 KB |
Output is correct |
| 69 |
Correct |
114 ms |
17876 KB |
Output is correct |
| 70 |
Correct |
15 ms |
4160 KB |
Output is correct |
| 71 |
Correct |
15 ms |
4144 KB |
Output is correct |
| 72 |
Correct |
15 ms |
4128 KB |
Output is correct |
| 73 |
Correct |
15 ms |
4100 KB |
Output is correct |
| 74 |
Correct |
15 ms |
4144 KB |
Output is correct |
| 75 |
Correct |
18 ms |
4176 KB |
Output is correct |
| 76 |
Correct |
15 ms |
4180 KB |
Output is correct |
| 77 |
Correct |
14 ms |
4180 KB |
Output is correct |
| 78 |
Correct |
14 ms |
4184 KB |
Output is correct |
| 79 |
Correct |
15 ms |
4196 KB |
Output is correct |
| 80 |
Correct |
15 ms |
4148 KB |
Output is correct |
| 81 |
Correct |
14 ms |
4168 KB |
Output is correct |
| 82 |
Correct |
15 ms |
4176 KB |
Output is correct |
| 83 |
Correct |
16 ms |
4136 KB |
Output is correct |
| 84 |
Correct |
15 ms |
4160 KB |
Output is correct |
| 85 |
Correct |
15 ms |
4192 KB |
Output is correct |
| 86 |
Correct |
17 ms |
4184 KB |
Output is correct |
| 87 |
Correct |
14 ms |
4144 KB |
Output is correct |
| 88 |
Correct |
15 ms |
4208 KB |
Output is correct |
| 89 |
Correct |
15 ms |
4204 KB |
Output is correct |
| 90 |
Correct |
15 ms |
4144 KB |
Output is correct |
