HELP NEEDED in SHUFFLE

Can anybody give me any corner-case for SHUFFLE problem of LTIME April 2020 Div - 2B, where this code might be giving wrong output !

7 6
3 1 1 1 1 1 1
Try this.

o/p is ‘yes’

Can u explain ur approach??

I have hashed all the numbers in increasing order with the index they will be placed after being sorted and have done the same thing as in subtask 1.