LeetCode：Plus One

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

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

// https://oj.leetcode.com/problems/plus-one/
// Author : Chao Zeng
// Date   : 2015-1-29
class Solution {
public:
    vector plusOne(vector &digits) {
        vector  numbers;
        reverse(digits.begin(),digits.end());
        int length = digits.size();
        digits[0]++;
        int temp;
        for (int i = 0; i < length; i++){
            //注意語句的順序
            temp = digits[i] / 10;
            digits[i] = digits[i] % 10;
            numbers.push_back(digits[i]);
            //進位的處理
            if (i == length - 1 && temp > 0){
                numbers.push_back(temp);
            }
            else{
                digits[i+1] = digits[i+1] + temp;
            }
        }
        reverse(numbers.begin(),numbers.end());
        return numbers;
    }
};