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.

C++:
01 class Solution {
02 public:
03     int removeElement(int A[], int n, int elem) {
04         // Start typing your C/C++ solution below
05         // DO NOT write int main() function
06         int j=0;
07         for(int i=0;i<n;i++)
08         {
09             if(A[i]!=elem)
10             {
11                 A[j++]=A[i];
12             }
13         }
14         return j;
15     }
16 };
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