#include <bits/stdc++.h>
using namespace std;
const int MAXN = 3 * 1000 + 10;
char tab[MAXN][MAXN];
bool peut[MAXN][MAXN][2];
// 0 -> droite
// 1 -> bas
//
int mod3(int n)
{
return ((n % 3) + 3) % 3;
}
int main()
{
ios::sync_with_stdio(false);
int N , M;
cin >> N >> M;
for (int i = 0 ; i < N ; i++)
{
for (int j = 0 ; j < M ; j++)
{
cin >> tab[i][j];
}
}
for (int i = 0 ; i < N ; i++)
{
for (int j = 0 ; j < M ; j++)
{
if (j + 2 < M && tab[i][j] == 'R' && tab[i][j + 1] == 'G' && tab[i][j + 2] == 'W')
{
peut[i][j][0] = true;
}
if (i + 2 < N && tab[i][j] == 'R' && tab[i + 1][j] == 'G' && tab[i + 2][j] == 'W')
{
peut[i][j][1] = true;
}
}
}
int sol = 0;
int i0 = 0;
int j0 = 0;
while (j0 < M && i0 < N)
{
int nb[3];
nb[0] = nb[1] = nb[2] = 0;
int ofs = 0;
int i = i0;
int j = j0;
while (i < N && j >= 0)
{
int valb = max(nb[ofs] , max(nb[mod3(ofs - 1)] , nb[mod3(ofs - 2)])) + 1;
int vald = nb[ofs] + 1;
nb[mod3(ofs - 2)] = max(nb[mod3(ofs - 2)] , nb[ofs]);
nb[mod3(ofs - 1)] = max(nb[mod3(ofs - 1)] , nb[mod3(ofs - 2)]);
if (peut[i][j][0])
{
nb[mod3(ofs - 2)] = max(nb[mod3(ofs - 2)] , vald);
nb[mod3(ofs - 1)] = max(nb[mod3(ofs - 1)] , vald);
nb[mod3(ofs - 0)] = max(nb[mod3(ofs - 0)] , vald);
}
if (peut[i][j][1])
{
nb[ofs] = valb;
}
// if (j0 == 7)
// {
// cout<<nb[ofs]<<" "<<nb[mod3(ofs - 1)]<<" "<<nb[mod3(ofs - 2)]<<endl;
// }
i++;
j--;
ofs = mod3(ofs + 1);
}
int aj = max(nb[0] , max(nb[1] , nb[2]));
sol += aj;
// cout<<aj<<endl;
j0++;
if (j0 == M)
{
i0++;
j0 = M - 1;
}
}
cout<<sol<<endl;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
0 ms |
328 KB |
Output is correct |
| 15 |
Correct |
1 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
328 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
0 ms |
328 KB |
Output is correct |
| 15 |
Correct |
1 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
328 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
0 ms |
340 KB |
Output is correct |
| 19 |
Correct |
0 ms |
324 KB |
Output is correct |
| 20 |
Correct |
1 ms |
340 KB |
Output is correct |
| 21 |
Correct |
1 ms |
340 KB |
Output is correct |
| 22 |
Correct |
1 ms |
340 KB |
Output is correct |
| 23 |
Correct |
1 ms |
340 KB |
Output is correct |
| 24 |
Correct |
1 ms |
340 KB |
Output is correct |
| 25 |
Correct |
0 ms |
340 KB |
Output is correct |
| 26 |
Correct |
0 ms |
212 KB |
Output is correct |
| 27 |
Correct |
1 ms |
340 KB |
Output is correct |
| 28 |
Correct |
1 ms |
340 KB |
Output is correct |
| 29 |
Correct |
1 ms |
340 KB |
Output is correct |
| 30 |
Correct |
1 ms |
340 KB |
Output is correct |
| 31 |
Correct |
0 ms |
340 KB |
Output is correct |
| 32 |
Correct |
0 ms |
340 KB |
Output is correct |
| 33 |
Correct |
0 ms |
340 KB |
Output is correct |
| 34 |
Correct |
0 ms |
340 KB |
Output is correct |
| 35 |
Correct |
1 ms |
340 KB |
Output is correct |
| 36 |
Correct |
1 ms |
340 KB |
Output is correct |
| 37 |
Correct |
1 ms |
340 KB |
Output is correct |
| 38 |
Correct |
0 ms |
340 KB |
Output is correct |
| 39 |
Correct |
1 ms |
340 KB |
Output is correct |
| 40 |
Correct |
1 ms |
340 KB |
Output is correct |
| 41 |
Correct |
1 ms |
340 KB |
Output is correct |
| 42 |
Correct |
0 ms |
340 KB |
Output is correct |
| 43 |
Correct |
5 ms |
340 KB |
Output is correct |
| 44 |
Correct |
0 ms |
340 KB |
Output is correct |
| 45 |
Correct |
0 ms |
340 KB |
Output is correct |
| 46 |
Correct |
0 ms |
340 KB |
Output is correct |
| 47 |
Correct |
0 ms |
340 KB |
Output is correct |
| 48 |
Correct |
1 ms |
340 KB |
Output is correct |
| 49 |
Correct |
0 ms |
340 KB |
Output is correct |
| 50 |
Correct |
0 ms |
340 KB |
Output is correct |
| 51 |
Correct |
0 ms |
340 KB |
Output is correct |
| 52 |
Correct |
0 ms |
340 KB |
Output is correct |
| 53 |
Correct |
0 ms |
340 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
0 ms |
328 KB |
Output is correct |
| 15 |
Correct |
1 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
328 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
0 ms |
340 KB |
Output is correct |
| 19 |
Correct |
0 ms |
324 KB |
Output is correct |
| 20 |
Correct |
1 ms |
340 KB |
Output is correct |
| 21 |
Correct |
1 ms |
340 KB |
Output is correct |
| 22 |
Correct |
1 ms |
340 KB |
Output is correct |
| 23 |
Correct |
1 ms |
340 KB |
Output is correct |
| 24 |
Correct |
1 ms |
340 KB |
Output is correct |
| 25 |
Correct |
0 ms |
340 KB |
Output is correct |
| 26 |
Correct |
0 ms |
212 KB |
Output is correct |
| 27 |
Correct |
1 ms |
340 KB |
Output is correct |
| 28 |
Correct |
1 ms |
340 KB |
Output is correct |
| 29 |
Correct |
1 ms |
340 KB |
Output is correct |
| 30 |
Correct |
1 ms |
340 KB |
Output is correct |
| 31 |
Correct |
0 ms |
340 KB |
Output is correct |
| 32 |
Correct |
0 ms |
340 KB |
Output is correct |
| 33 |
Correct |
0 ms |
340 KB |
Output is correct |
| 34 |
Correct |
0 ms |
340 KB |
Output is correct |
| 35 |
Correct |
1 ms |
340 KB |
Output is correct |
| 36 |
Correct |
1 ms |
340 KB |
Output is correct |
| 37 |
Correct |
1 ms |
340 KB |
Output is correct |
| 38 |
Correct |
0 ms |
340 KB |
Output is correct |
| 39 |
Correct |
1 ms |
340 KB |
Output is correct |
| 40 |
Correct |
1 ms |
340 KB |
Output is correct |
| 41 |
Correct |
1 ms |
340 KB |
Output is correct |
| 42 |
Correct |
0 ms |
340 KB |
Output is correct |
| 43 |
Correct |
5 ms |
340 KB |
Output is correct |
| 44 |
Correct |
0 ms |
340 KB |
Output is correct |
| 45 |
Correct |
0 ms |
340 KB |
Output is correct |
| 46 |
Correct |
0 ms |
340 KB |
Output is correct |
| 47 |
Correct |
0 ms |
340 KB |
Output is correct |
| 48 |
Correct |
1 ms |
340 KB |
Output is correct |
| 49 |
Correct |
0 ms |
340 KB |
Output is correct |
| 50 |
Correct |
0 ms |
340 KB |
Output is correct |
| 51 |
Correct |
0 ms |
340 KB |
Output is correct |
| 52 |
Correct |
0 ms |
340 KB |
Output is correct |
| 53 |
Correct |
0 ms |
340 KB |
Output is correct |
| 54 |
Correct |
1 ms |
340 KB |
Output is correct |
| 55 |
Correct |
5 ms |
9556 KB |
Output is correct |
| 56 |
Correct |
1 ms |
340 KB |
Output is correct |
| 57 |
Correct |
5 ms |
13184 KB |
Output is correct |
| 58 |
Correct |
32 ms |
9036 KB |
Output is correct |
| 59 |
Correct |
293 ms |
26808 KB |
Output is correct |
| 60 |
Correct |
284 ms |
26792 KB |
Output is correct |
| 61 |
Correct |
294 ms |
26808 KB |
Output is correct |
| 62 |
Correct |
1 ms |
340 KB |
Output is correct |
| 63 |
Correct |
279 ms |
26712 KB |
Output is correct |
| 64 |
Correct |
245 ms |
26712 KB |
Output is correct |
| 65 |
Correct |
280 ms |
35624 KB |
Output is correct |
| 66 |
Correct |
250 ms |
35628 KB |
Output is correct |
| 67 |
Correct |
218 ms |
27836 KB |
Output is correct |
| 68 |
Correct |
237 ms |
27904 KB |
Output is correct |
| 69 |
Correct |
255 ms |
31644 KB |
Output is correct |
| 70 |
Correct |
27 ms |
10048 KB |
Output is correct |
| 71 |
Correct |
28 ms |
10068 KB |
Output is correct |
| 72 |
Correct |
30 ms |
10128 KB |
Output is correct |
| 73 |
Correct |
25 ms |
10092 KB |
Output is correct |
| 74 |
Correct |
31 ms |
10120 KB |
Output is correct |
| 75 |
Correct |
32 ms |
10124 KB |
Output is correct |
| 76 |
Correct |
26 ms |
10132 KB |
Output is correct |
| 77 |
Correct |
35 ms |
10136 KB |
Output is correct |
| 78 |
Correct |
34 ms |
10100 KB |
Output is correct |
| 79 |
Correct |
34 ms |
10080 KB |
Output is correct |
| 80 |
Correct |
31 ms |
10108 KB |
Output is correct |
| 81 |
Correct |
32 ms |
10128 KB |
Output is correct |
| 82 |
Correct |
29 ms |
10124 KB |
Output is correct |
| 83 |
Correct |
28 ms |
10060 KB |
Output is correct |
| 84 |
Correct |
30 ms |
10124 KB |
Output is correct |
| 85 |
Correct |
32 ms |
10076 KB |
Output is correct |
| 86 |
Correct |
34 ms |
10024 KB |
Output is correct |
| 87 |
Correct |
26 ms |
10096 KB |
Output is correct |
| 88 |
Correct |
32 ms |
10124 KB |
Output is correct |
| 89 |
Correct |
35 ms |
10132 KB |
Output is correct |
| 90 |
Correct |
31 ms |
10192 KB |
Output is correct |
