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Grokking the Coding Interview Patterns in Go

Solution: Remove Element

Understand how to use the two pointers technique to remove all occurrences of a given value from an integer array in place. Learn to efficiently overwrite unwanted elements without additional space. This lesson guides you through modifying the array and returning the count of remaining valid elements, mastering an essential pattern in coding interviews.

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Statement

You are given an integer array, nums, and an integer, val. Your task is to remove all occurrences of val from nums in place, meaning no additional memory allocation should be used. The relative order of the elements in the array may be changed. After modifying the array, return the number of elements that are not equal to val.

Let ...