D - Rasode Me Binod Tha

Kokila really like arrays which contains equal integers. On her birthday, Binod decided to gift her an array of integers of length $N$ and purchased it from nearby shop after paying rupees $X$. But the elements of this array may not be all equal and in order to make all numbers unique he will have to pay some extra cost. Binod can replace an integer $p$ with another integer $q$ by paying an ext