Move Zeroes @LeetCode

PROBLEM :

Given an array nums, write a function to move all 0's to the end of it while maintaining the relative order of the non-zero elements.

For example, given nums = [0, 1, 0, 3, 12], after calling your function, nums should be [1, 3, 12, 0, 0].

Note:
You must do this in-place without making a copy of the array.
Minimize the total number of operations.

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SIMPLE c++ IMPLEMENTATION :
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class Solution {
public:
    void moveZeroes(vector<int>& nums) {
        int i ;
        i=0 ;
       
        for(int j=0;j<nums.size();j++){
            if(nums[j]!=0)
                nums[i++]=nums[j] ;
        }
       
        for(int j=i;j<nums.size();j++)
            nums[j]=0 ;
    }
};

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