My simple Python code

  • 0

    This is an easy problem. Just follow the arithmetic rules and be careful of the carry.

    class Solution(object):
        def plusOne(self, digits):
            :type digits: List[int]
            :rtype: List[int]
            n = len(digits)
            i = n-1
            carry = 1
            while i>=0 and carry!=0:
                digits[i], carry = (digits[i]+carry)%10, (digits[i]+carry)//10
                i -= 1
            if i<0 and carry!=0: 
                digits.insert(0, carry)
            return digits

  • 0

    @HuTuo pretty brilliant one

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