Move Zeros at the end.txt

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

Note that you must do this in-place without making a copy of the array.

 

Example 1:

Input: nums = [0,1,0,3,12]
Output: [1,3,12,0,0]
Example 2:

Input: nums = [0]
Output: [0]
 

Constraints:

1 <= nums.length <= 104
-231 <= nums[i] <= 231 - 1



Solution:

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