Kth Largest Element in an Array.cpp

/*
Kth Largest Element in an Array
===============================

Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element.

Example 1:
Input: [3,2,1,5,6,4] and k = 2
Output: 5

Example 2:
Input: [3,2,3,1,2,4,5,5,6] and k = 4
Output: 4

Note:
You may assume k is always valid, 1 ≤ k ≤ array's length.
*/

class Solution
{
public:
  int findKthLargest(vector<int> &nums, int k)
  {
    priority_queue<int> pq;
    for (auto &i : nums)
      pq.push(i);

    while (--k > 0)
      pq.pop();
    return pq.top();
  }
};