283. Move Zeroes

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]

def moveZeroes(self, nums: List[int]) -> None:
	non_zero_index = 0
	for i in range(len(nums)):
		if nums[i] != 0:
			nums[non_zero_index], nums[i] = nums[i], nums[non_zero_index]
			non_zero_index += 1