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Grokking the Coding Interview Patterns in JavaScript

Solution: Kth Smallest Prime Fraction

Understand how to identify the kth smallest fraction formed from prime numbers in a sorted array by using a heap-based k-way merge. This lesson teaches you to implement a min-heap to efficiently track the next smallest fraction and extract the desired result, while analyzing time and space complexity for optimal coding interview performance.

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Statement

You are given a sorted array of unique integers, arr, which includes the number 11 and other prime numbers. You are also given an integer kk.

For every index ii and jj where 0≤i<j<0 \leq i < j < arr.length, you can form a fraction by taking the number at index ii ...