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.

class Solution(object):
    def moveZeroes(self, nums):
        c = 0
        for i in range(len(nums)):
            if nums[i] != 0:
                nums[c] = nums[i]
                c += 1
        for i in range(c,len(nums)):
            nums[i] = 0