题解 | #提取不重复的整数#
提取不重复的整数
https://www.nowcoder.com/practice/253986e66d114d378ae8de2e6c4577c1
import sys if __name__=="__main__": string=input().strip() result="" for char in string[::-1]: if char not in result: result+=char result=result.rstrip("0") print(result)