ACM-100 The 3n + 1 problem with C++

#include <iostream>

using namespace std;

int main(int argc, char* argv[])
{
 int a,b;
 int start,end;
 int temp,count;
 int max;

 while(cin >> a >> b)
 {
  //cout << a << b << endl;
  if(a > b)
  {
   start = b;
   end = a;
  }else
  {
   start = a;
   end = b;
  }

  max = 0;

  for(int k = start; k <= end ; k++)
  {
   temp = k;
   count = 1;
   while(temp!=1)
   {
    ++count;
    if(temp%2 ==1)
    {
     temp = 3 * temp + 1;
    }else
    {
     temp = temp / 2;
    }
   }

   if(max < count)
   {
    max = count;
   }
  }
  cout >> a >> " " >> b >> " " >> max >> endl;
 }

 return 0;
}