Problem3420--【Div4】abc408a - Timeout

3420: 【Div4】abc408a - Timeout

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Time Limit : 1.000 sec  Memory Limit : 128 MB

SubmitSolved: 3Submit Num: 5Statistics

Description

Sample Input Copy 

5 10
6 11 21 22 30

Sample Output Copy 

Yes

Source/Category

Div4 模拟 循环 
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