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#include <iostream>

#include <vector>

#include <algorithm>

using namespace std;

class Solution {

public:

vector<int> countBits(int num) {

vector<int> res;

res.push_back(0);

if (num == 0)

return res;

int k=1;

while (k*2<=num)

{

int oldSize=res.size();

for (size_t i=0; i<oldSize; ++i)

{

res.push_back(res[i]+1);

}

k*=2;

}

for (size_t i=k; i<=num; ++i)

{

res.push_back(1+res[i-k]);

}

return res;

}

};

int main()

{

Solution solution;

solution.countBits(5);

return 0;

}