class Solution(object):
def removeDuplicates(self, nums):
"""
:type nums: List[int]
:rtype: int
"""
i = 0
for n in nums:
if i < 2 or n > nums[i - 2]:
nums[i] = n
i += 1
return i
if __name__ == "__main__":
answer=Solution()
print answer.removeDuplicates([1,1,1,2,2,3])
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