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

URL:https://leetcode.com/problems/move-zeroes/

class Solution(object):
    def moveZeroes(self, nums):
        """
        :type nums: List[int]
        :rtype: void Do not return anything, modify nums in-place instead.
        """

        i = 0
        j = 0
        while j < len(nums):
            if nums[j] == 0:
                j += 1
            else:
                nums[i] = nums[j]
                i += 1
                j += 1

        while i < len(nums):
            nums[i] = 0
            i += 1