Search⌘ K
AI Features
Home
Courses
Grokking the Coding Interview Patterns in Go

Solution: Top K Frequent Elements

Explore how to identify the top k frequent elements in an integer array by using a frequency hash map combined with a min-heap. Understand both naive and optimized approaches to mastering this common coding problem, including tradeoffs in time and space complexity. This lesson equips you with practical skills for efficient problem-solving during coding interviews.

We'll cover the following...

Statement

Given an array of integers, arr, and an integer, k, return the kk most frequent elements.

Note: You can return the answer in any order.

Constraints:

  • 11 ≤\leq arr.length ≤\leq 10310^{3}
  • −10−4-10^{-4} ≤\leq arr[i] ≤\leq 10410^{4}
...