class Solution {

public:

    vector<int> countBits(int num) {

        vector<int> result{};

        for(int i = ;i <= num;i++){

            if(i %  == )

                result.push_back(result[i/]);

            else

                result.push_back(result[i/] + );

        }

        return result;

    }

};

class Solution {

public:

     int  NumberOf1(int n) {

         int count = ;

         while(n){

             n = (n-) & n;

             count++;

         }

         return count;

     }

};