题解 | #提取不重复的整数#
提取不重复的整数
https://www.nowcoder.com/practice/253986e66d114d378ae8de2e6c4577c1
data = input()
arr_data = data[::-1]
arr_list = []
for i in arr_data:
if i in arr_list:
continue
else:
arr_list.append(i)
for i in arr_list:
print(i,end='')

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