Remove Element

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.

#include<iostream>
#include<vector>
using namespace std;

int removeElement(int A[], int n, int elem) {
  int newlength = 0;
  for (int i = 0; i < n;++i)
  {
    if (A[i] != elem)
    {
      A[newlength] = A[i];
      newlength++;
    }
  }
  return newlength;
}

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