题解 | #字符个数统计#
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
def de_weight(num): """ 用集合的性质去重 """ print(len(set(num))) de_weight(input())
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
def de_weight(num): """ 用集合的性质去重 """ print(len(set(num))) de_weight(input())
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