题解 | #递增的产奶量#

class Solution {
public:
    /**
     * 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
     *
     * 
     * @param milk int整型vector 
     * @return int整型vector
     */
    vector<int> tomorrowMilk(vector<int>& milk) {
        // write code here
        int len = milk.size();
        int a = 1;
        for (int i = len-1; i >= 0; i--) {
            int t = milk[i] + a;
            milk[i] = t % 10;
            a = t/10;
        }
        if (a) {
            vector<int> ans;
            ans.push_back(a);
            for (int i = 0; i < len; i++) {
                ans.push_back(milk[i]);
            }
            return ans;
        }
        return milk;
    }
};