题解 | BFS
BFS
https://www.nowcoder.com/practice/22da7730da5d4a129a188ba24d22f2bf
S = input().strip().lower()
position = S.find("bob")
print(position)
lower都转换成小写
BFS
https://www.nowcoder.com/practice/22da7730da5d4a129a188ba24d22f2bf
S = input().strip().lower()
position = S.find("bob")
print(position)
lower都转换成小写
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