Leetcode 283: Move Zeroes

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:

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

public class Solution {
    public void MoveZeroes(int[] nums) {
        int i = 0, j = 0;
        
        while (j < nums.Length)
        {
            if (nums[j] != 0)
            {
                if (i != j)
                {
                    var tmp = nums[i];
                    nums[i] = nums[j];
                    nums[j] = tmp;
                }
                
                i++;
            }
            
            j++;
        }
    }
}