338. counting bits

class  {
public:
    vector<int> countBits(int num) {
        int temp,count;
        vector<int>result;
        for(int i=0;i<=num;i++){
            temp=i;
            count=0;
            while(temp){
                count+=temp&1;
                temp>>=1;
            }
            result.push_back(count);
            
            
        }
        return result;
        
    }
};