题解 | 字符个数统计
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
print(len({ord(c) for c in input() if 0 <= ord(c)<=127}))
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
print(len({ord(c) for c in input() if 0 <= ord(c)<=127}))
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