Giving wrong ans in some test cases

#1
#2

You have not considered the fact that An and A1 are also adjacent (It’s a circular list). Consider this testcase
3
10 20 1
Output should be 42 { 10+1 = 11 => (11,20), 11+20 =31 so total penalty=11+31 =42 } but your code is giving 52.

#3

how to add such case in loop??

#4

You can also put the first element after then last element so that it is circular.

#5

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