Leetcode: Kth Largest Element in an Array

Kth Largest Element in an Array



Similar Problems:


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.
For example,
Given [3,2,1,5,6,4] and k = 2, return 5.

Note:
You may assume k is always valid, 1 <= k <= array’s length.

Github: code.dennyzhang.com

Credits To: leetcode.com

Leave me comments, if you have better ways to solve.


## Blog link: https://code.dennyzhang.com/kth-largest-element-in-an-array
## Basic Ideas: heap
##
## Complexity: Time O(n*log(n)), Space O(n)
import heapq
class Solution(object):
    def findKthLargest(self, nums, k):
        """
        :type nums: List[int]
        :type k: int
        :rtype: int
        """
        q = []
        for num in nums: heapq.heappush(q, num)
        return heapq.nlargest(k, q)[-1]

# s = Solution()
# print s.findKthLargest([3,2,1,5,6,4], 2) # 5
linkedin
github
slack

Share It, If You Like It.

Leave a Reply

Your email address will not be published.