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Solution: Kth Smallest Prime Fraction

Explore how to efficiently compute the kth smallest prime fraction formed from a sorted array using a heap and k-way merge technique. This lesson walks you through initializing fractions, updating the min heap, and achieving an optimized solution with detailed time and space analysis.

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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 ...