Plus One

class Solution {
public:
    vector<int> plusOne(vector<int>& digits) {
        vector<int> res;
        int s= digits.size();
        if(s==0) return res;
        int temp=1;
        for(int i=s-1;i>=0;i--){
            temp += digits[i];
            if(temp>9) {
                res.push_back(temp-10);
                temp=1;
            }
            else {
                res.push_back(temp);
                temp = 0;
            }
        }
        if(temp) res.push_back(1);
        reverse(res.begin(),res.end());
        return res;
    }
};