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Grokking the Coding Interview Patterns in C++

Solution: Kth Smallest Prime Fraction

Explore a method to find the kth smallest prime fraction from a sorted array. This lesson teaches how to use a min heap to merge sequences of fractions, efficiently identifying the kth smallest by expanding fractions based on numerator and denominator indices. You will understand how to balance heap operations and indexing to optimize 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 jj ...