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.

 

 

 1 int removeElement(int* nums, int numsSize, int val) {
 2     if(numsSize<1)
 3     return 0;
 4     int size=0;
 5     for(int i=0;i<numsSize;i++)
 6     {
 7         if(nums[i]!=val)
 8         nums[size++]=nums[i];  
 9     }
10     return size;
11     
12 }