题解 | #字符个数统计#
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
s=input() dic=[] ans=0 for i in s: if i in dic: continue else: dic.append(i) ans+=1 print(ans)
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
s=input() dic=[] ans=0 for i in s: if i in dic: continue else: dic.append(i) ans+=1 print(ans)
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