Not able to clear one test cases just?

#1
#2

Okay i got it, wait let me debug it.

#3

See for this test case
10
1 2 3 5 7 2 4 6 3 8

Expected output is:
1 3 5 7 3 2 2 4 6 8

Yours is giving is:
1 2 3 5 7 2 4 6 3 8

Check your logic again. Also this can be implemented using STL by creating linked list for odd members then for even members and then you merge them.
Try to approach like this.

#4

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