取一个数的第i位

#include <iostream>

using namespace std;
typedef unsigned long long ull;
ull bits(ull x,int i)
{
return (x >> i) & 1ULL;
}
int main()
{
int testCase,i;
while (cin>>testCase>>i)
{
cout<<bits(testCase,i)<<endl;
}
return 0;
}