K Median

You have an array $A$ of $N$ integers, and an integer $K$. You must delete exactly $K$ elements from the array. After deleting $K$ elements, you wonder what are the possible median values of the remaining array. Print all of the possible median values. --- The median of an array $B$ of length $M$ is the $\lceil \dfrac{M}{2} \rceil$ smallest element. For example the median of $[2, 4, 3, 1]$ is $