Problem3601--【Div3】深搜练习-abc453C- Sneaking Glances

3601: 【Div3】深搜练习-abc453C- Sneaking Glances

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Time Limit : 1.000 sec  Memory Limit : 128 MB

SubmitSolved: 1Submit Num: 1Statistics

Description

Sample Input Copy 

5
2 5 2 2 1

Sample Output Copy 

4

Source/Category

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