Write a function to determine the number of bits required to convert integer A to integer B.

CareerCup5.5.cpp

#include <iostream>
#include <bitset>

int GetNumber(int, int);

int main()
{
  std::cout<<GetNumber(31,14)<<std::endl;
}

int GetNumber(int num1,int num2)
{
	using namespace std;
	int num3 = num1^num2;
	bitset<32> btres(num3);
	return btres.count();
}