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DIY: Random Pick Index

Explore implementing a memory-efficient algorithm that randomly selects an index of a given target in an array with duplicates. Understand the problem constraints and practice the coding skills necessary to solve this common interview question, enhancing your preparation for real-world scenarios.

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Problem statement

In this challenge, you are given an array of integers with possible duplicate values. Your task is to output a randomly picked index of a given target number present in the array. The solution ...