Leetcode 66. Plus One

文章作者：Tyan
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1. Description

Plus One

2. Solution

class Solution {
public:
    vector plusOne(vector& digits) {
        int length = digits.size();
        int index = length - 1;
        while(index >= 0) {
            int sum = digits[index] + 1;
            if(sum == 10) {
                digits[index] = 0;
                index--;
            }
            else {
                digits[index] = sum;
                return digits;
            }
        }
        digits.insert(digits.begin(), 1);
        return digits;
    }
};

Reference

1. https://leetcode.com/problems/plus-one/description/