Design a class to find the kth largest element in a stream. Note that it is the kth largest element in the sorted order, not the kth distinct element.
Implement KthLargest class:
KthLargest(int k, int[] nums)Initializes the object with the integerkand the stream of integersnums.int add(int val)Appends the integervalto the stream and returns the element representing thekthlargest element in the stream.