Problem3495--【Div4】abc429b - N - 1

3495: 【Div4】abc429b - N - 1

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Time Limit : 1.000 sec  Memory Limit : 128 MB

SubmitSolved: 3Submit Num: 5Statistics

Description



Sample Input Copy 

4 10
3 2 3 4

Sample Output Copy 

Yes

Source/Category

Div4 数组 
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