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Solution: Kth Smallest Prime Fraction

Explore how to determine the kth smallest fraction formed by elements in a sorted array consisting of 1 and prime numbers. Learn to use a heap-based k-way merge approach to generate fractions in order, allowing you to solve this problem optimally. Understand the process of managing fractions and updating candidates efficiently, with insights into time and space complexity.

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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 as the numerator and the number at index ...