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
num_lt_trv = input()[::-1]
new_str=''
N=len(num_lt_trv)
j = 1
while j <= N:
j+=1
i = num_lt_trv[0]
if i not in new_str:
new_str+=i
num_lt_trv=num_lt_trv[1::]
if j>N:
break
print(int(new_str))
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