LeetCode #27 Remove Element

class Solution:    # @param {integer[]} nums    # @param {integer} val    # @return {integer}    def removeElement(self, nums, val):        size = 0         for i in range(0,len(nums)):            if nums[i] != val:                size+=1        j = 0        for i in range(size,len(nums)):            if nums[i] != val:                while nums[j] != val:                    j+=1                nums[j] = nums[i]                nums[i] = val                        return size