1.2 KB | 1231 chars
import sys
from math import sqrt, pi, sin, factorial, ceil, floor
from decimal import Decimal
BLANK = " "
inp = input
# inp = lambda : sys.stdin.readline()[:-1].strip()
mii = lambda x = BLANK : [*map(int,inp().split(x))]
mfi = lambda x = BLANK : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print
def solve():
z = [
[-1, -1, '\\'],
[-1, 0, '|'],
[-1, 1, '/'],
[0, -1, '-'],
[0, 1, '-'],
[1, -1, '/'],
[1, 0, '|'],
[1, 1, '\\'],
]
n, m = mii()
l = [input() for _ in range(n)]
ans = 0
for i in range(n):
for j in range(m):
if l[i][j] == '+':
cnt = 0
for k in range(1, max(n, m)):
chk = True
for d in range(8):
ny = i + z[d][0] * k
nx = j + z[d][1] * k
if ny < 0 or nx < 0 or ny >= n or nx >= m:
chk = False
break
if l[ny][nx] != z[d][2]:
chk = False
break
if chk:
cnt += 1
else:
break
ans = max(ans, cnt)
p(ans)
if __name__ == "__main__":
tc = 1
for t in range(1, tc+1):
ret = solve()