Remove Element

Problem

Given an array and a value, remove all instances of that value in place and return the new length.

The order of elements can be changed. It doesn't matter what you leave beyond the new length

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Ideas

The problem is a little difficult to understand (my poor English - -!). if A[]={1,2,2,3} elem:2, you should return 2 and A[] = {1,3}.

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Solution

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