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Grokking the Coding Interview Patterns in JavaScript

Solution: Smallest Range Covering Elements from K Lists

Explore how to determine the smallest range that includes at least one element from each of k sorted lists. Learn to use a min heap to dynamically track minimum and maximum values and update the range efficiently. Understand the underlying logic and tradeoffs, while grasping the time and space complexity of the approach to solve this coding challenge.

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Statement

You are given kk sorted lists of integers, nums, where each list in nums is in non-decreasing order. Your task is to find the smallest range that contains at least one element from each of the kk lists.

A range [a,b][a,b] is considered smaller than another range [c,d][c,d] if ...