Solution: Remove Element
Understand how to apply the two pointers technique to remove all instances of a specified value from an integer array without extra memory allocation. This lesson helps you modify the array in place, maintain the order of remaining elements, and return the count of valid elements. You will learn to use two iterators to efficiently shift elements and improve your skills in array manipulation and coding interview patterns.
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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.
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