Submission #6110929

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Source Code Expand

H, W = map(int, input().split())

line_list = []

for i in range(H):
    line = input()
    line_list.append(line)

flag = True
for i in range(len(line_list)):
    for j in range(len(line_list[i])):
        if flag == False:
            break
        if line_list[i][j] == "#":
            if i == 0:
                if j == 0:
                    if "#" not in [line_list[i + 1][j], line_list[i][j + 1]]:
                        flag = False
                elif j == W - 1:
                    if "#" not in [line_list[i + 1][j], line_list[i][j - 1]]:
                        flag = False
                else:
                    if "#" not in [line_list[i + 1][j], line_list[i][j - 1], line_list[i][j + 1]]:
                        flag = False
            elif i == H - 1:
                if j == 0:
                    if "#" not in [line_list[i - 1][j], line_list[i][j + 1]]:
                        flag = False
                elif j == W - 1:
                    if "#" not in [line_list[i - 1][j], line_list[i][j - 1]]:
                        flag = False
                else:
                    if "#" not in [line_list[i - 1][j], line_list[i][j - 1], line_list[i][j + 1]]:
                        flag = False
            else:
                if j == 0:
                    if "#" not in [line_list[i - 1][j], line_list[i + 1][j], line_list[i][j + 1]]:
                        flag = False
                elif j == W - 1:
                    if "#" not in [line_list[i - 1][j], line_list[i + 1][j], line_list[i][j - 1]]:
                        flag = False
                else:
                    if "#" not in [line_list[i - 1][j], line_list[i + 1][j], line_list[i][j - 1], line_list[i][j + 1]]:
                        flag = False

print("Yes" if flag else "No")

Submission Info

Judge Result