Problem3421--【Div3】abc408b - Compression

3421: 【Div3】abc408b - Compression

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Time Limit : 1.000 sec  Memory Limit : 128 MB

SubmitSolved: 5Submit Num: 9Statistics

Description



Sample Input Copy 

4
3 1 4 1

Sample Output Copy 

3
1 3 4

Source/Category

Div3 排序 数据结构 set 桶 
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