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Problem: Find the Kth Largest Integer in the Array

Medium
30 min
Explore the approach to find the kth largest integer in an array of numeric strings. Learn how to handle duplicates and apply the top k elements pattern using heaps to solve this problem efficiently. This lesson helps you implement a clear solution strategy suitable for coding interviews.

Statement

Given an array of strings, nums, where each string represents an integer without leading zeros, and an integer k, your task is to find and return the string representing the kth^{th} largest integer in the array.

Note: Treat duplicate integers as distinct entities. For instance, if nums =[“2”, “3”, “3”]= [\text{\lq\lq2\rq\rq, \lq\lq3\rq\rq, \lq\lq3\rq\rq]}, the first largest integer is “3”\text{\lq\lq3\rq\rq}, the second largest is also “3”\text{\lq\lq3\rq\rq}, and the third largest is “2”\text{\lq\lq2\rq\rq}.

Constraints:

  • 1<=1 <= k <=<= nums.length <=103<= 10^3

  • 1<=1 <= nums[i].length <=100<= 100

  • nums[i] consists of only digits.

  • nums[i] will not have any leading zeros.

Problem
Ask
Submissions

Problem: Find the Kth Largest Integer in the Array

Medium
30 min
Explore the approach to find the kth largest integer in an array of numeric strings. Learn how to handle duplicates and apply the top k elements pattern using heaps to solve this problem efficiently. This lesson helps you implement a clear solution strategy suitable for coding interviews.

Statement

Given an array of strings, nums, where each string represents an integer without leading zeros, and an integer k, your task is to find and return the string representing the kth^{th} largest integer in the array.

Note: Treat duplicate integers as distinct entities. For instance, if nums =[“2”, “3”, “3”]= [\text{\lq\lq2\rq\rq, \lq\lq3\rq\rq, \lq\lq3\rq\rq]}, the first largest integer is “3”\text{\lq\lq3\rq\rq}, the second largest is also “3”\text{\lq\lq3\rq\rq}, and the third largest is “2”\text{\lq\lq2\rq\rq}.

Constraints:

  • 1<=1 <= k <=<= nums.length <=103<= 10^3

  • 1<=1 <= nums[i].length <=100<= 100

  • nums[i] consists of only digits.

  • nums[i] will not have any leading zeros.