| 1 | def main(): |
| 2 | with open ("grid.txt", "r") as f: |
| 3 | l = [] |
| 4 | for i in range(20): |
| 5 | l.append([int(x) for x in f.readline().split()]) |
| 6 | |
| 7 | maximum = 0 |
| 8 | |
| 9 | # right |
| 10 | for i in range(20): |
| 11 | for j in range(17): |
| 12 | temp = l[i][j] * l[i][j+1] * l[i][j+2] * l[i][j+3] |
| 13 | if temp > maximum: |
| 14 | maximum = temp |
| 15 | |
| 16 | # down |
| 17 | for i in range(17): |
| 18 | for j in range(20): |
| 19 | temp = l[i][j] * l[i+1][j] * l[i+2][j] * l[i+3][j] |
| 20 | if temp > maximum: |
| 21 | maximum = temp |
| 22 | |
| 23 | #diagonal 1 |
| 24 | for i in range(17): |
| 25 | for j in range(17): |
| 26 | temp = l[i][j] * l[i+1][j+1] * l[i+2][j+2] * l[i+3][j+3] |
| 27 | if temp > maximum: |
| 28 | maximum = temp |
| 29 | |
| 30 | #diagonal 2 |
| 31 | for i in range(17): |
| 32 | for j in range(3, 20): |
| 33 | temp = l[i][j] * l[i+1][j-1] * l[i+2][j-2] * l[i+3][j-3] |
| 34 | if temp > maximum: |
| 35 | maximum = temp |
| 36 | print(maximum) |
| 37 | |
| 38 | if __name__ == '__main__': |
| 39 | main() |