66. Plus One

Given a non-negative integer represented as a non-empty array of digits, plus one to the integer.

You may assume the integer do not contain any leading zero, except the number 0 itself.

The digits are stored such that the most significant digit is at the head of the list.

 

class Solution(object):
    def plusOne(self, digits):
        """
        :type digits: List[int]
        :rtype: List[int]
        """
        
        num = 0
        for i in range(len(digits)):
            num = num*10+digits[i]
        return [int(i) for i in str(num+1)]
            

先将digits转换成数字，加1，然后再转换成列表