Problem2842-- [CSP-S 2021] P3 回文

2842: [CSP-S 2021] P3 回文

[Creator : ]
Time Limit : 1.000 sec  Memory Limit : 128 MB

SubmitSolved: 0Submit Num: 4Statistics

Description




Sample Input Copy 

2
5
4 1 2 4 5 3 1 2 3 5
3
3 2 1 2 1 3

Sample Output Copy 

LRRLLRRRRL
-1

Source/Category

CSP-S 
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