题解 | #提取不重复的整数#
提取不重复的整数
https://www.nowcoder.com/practice/253986e66d114d378ae8de2e6c4577c1
l = str(input()) l = l[::-1] num=[] for i in l: if i in num: continue else: num.append(i) str_num = ''.join(num).lstrip('0') int_num = int(str_num) print(int_num)