fast as fuck solution
\nclass Solution {\npublic:\n    \n    vector<int> plusOne(vector<int>& digits) {\n        for(int i = digits.size()-1; i>=0; i--){\n                    if(digi
```\nclass Solution {\npublic:\n    \n    vector<int> plusOne(vector<int>& digits) {\n        for(int i = digits.size()-1; i>=0; i--){\n                    if(digits[i]<9){\n                    digits[i]++;\n                    return digits;\n                    }\n                    else\n                            digits[i] = 0;\n                    \n            }\n            digits.push_back(0);\n            digits[0] = 1;\n            return digits;\n    }\n};\n```\nupvote if useful
['C']