/*
  Name:
  Lab Section:
  TA:
*/

#include <stdio.h>

int bitCount (unsigned int n);

int main ( )
{
  printf ("# 1-bits in base 2 representation of %u = %d, should be 0\n",
          0, bitCount (0));
  printf ("# 1-bits in base 2 representation of %u = %d, should be 1\n",
          1, bitCount (1));
  printf ("# 1-bits in base 2 representation of %u = %d, should be 16\n",
          2863311530u, bitCount (2863311530u));
  printf ("# 1-bits in base 2 representation of %u = %d, should be 1\n",
          536870912, bitCount (536870912));
  printf ("# 1-bits in base 2 representation of %u = %d, should be 32\n",
          4294967295u, bitCount (4294967295u));
  return 0;
}

int bitCount (unsigned int n)
{
  /* your code here */
}