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
for line in sys.stdin:
a = line.split()[0]
dic={}
#print(a)
#print(reversed(a))
for i in reversed(a):
#print(i)
if i not in dic:
print(f'{i}',end='')
dic[i]=1
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