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027_Remove_Element.py

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# class Solution(object):

# def removeElement(self, nums, val):

# """

# :type nums: List[int]

# :type val: int

# :rtype: int

# """

class Solution(object):

# def removeElement(self, nums, val):

# ls = len(nums)

# if ls == 0:

# return ls

# pos = 0

# for i in range(ls):

# if nums[i] == val:

# continue

# else:

# nums[pos] = nums[i]

# pos += 1

# # del nums[pos:]

# return pos

def removeElement(self, nums, val):

ls = len(nums)

if ls == 0:

return ls

count = 0

index = 0

while index < ls - count:

if nums[index] == val:

nums[index] = nums[ls - 1 - count]

count += 1

else:

index += 1

return ls - count

if __name__ == '__main__':

# begin

s = Solution()

print s.removeElement([1], 1)