Submission #5657233

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Source Code Expand

import sys
H,W=map(int,input().split())
#H×Wのマス目入力の周りに"."を付け加える関数
def pixel_input(H,W,border="."):
    pixel = [[border]*(W+2)] + \
    [[border] + list(input()) + [border] for _ in range(H)] + \
    [[border]*(W+2)]
    return pixel
S=pixel_input(H,W)
flag=0
for i in range(1,H+1):
    for j in range(1,W+1):
        if S[i][j]=="#":
            if S[i-1][j]==S[i+1][j]==S[i][j-1]==S[i][j+1]==".":
                print("No")
                sys.exit()
print("Yes")

Submission Info

Judge Result