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Data Structures for Coding Interviews in C++

Solution: Find k Smallest Elements in an Array

Explore how to use a MinHeap to find the k smallest elements in an unsorted array. Learn step-by-step implementation in C++ and analyze the time and space complexity to understand why this method is efficient for coding interviews and practical applications.

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Statement

Given an unsorted array arr and an integer k, find the k smallest elements from the array using a Heap.

Constraints:

  • 1≤1 \leq arr.length ≤103\leq 10^3
  • 1≤1 \leq k ≤103\leq 10^3
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