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Solution: Kth Smallest Prime Fraction

Explore the approach to find the kth smallest prime fraction formed from a sorted array of unique integers including 1 and prime numbers. Understand how to use a min-heap in the k-way merge pattern to efficiently generate and track fractions in ascending order, enabling you to solve this problem with optimal time complexity. This lesson demonstrates the process of maintaining and updating a heap to identify the desired fraction through repeated extraction and insertion methods.

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 0i<j<0 \leq i < j < arr.length, you can form a fraction by taking the number at index ii as the numerator and the number at index ...