// File binrep3.cpp  shinnerl@ucla.edu 2/1/02
// Tests constness of "sizeof" expressions.

const unsigned NDIGITS = sizeof(int)*8;   // sizeof(int) is constant!
#include <iostream>
#include <cstdlib>
using namespace std;

int main(){
   bool digits[ NDIGITS ];
   cout << "Enter an int >= 0: ";
   int n;
   cin >> n;
   if (n < 0){
      cout << "Input error!  Negative data. " << endl;
      exit(-1);
   }
   int count = 0;
   do{
     digits[count++] = n%2;
     n /= 2;
   }while ( n > 0 );
   while (count-- > 0){
     cout << digits[count];
   }
   cout << endl;
   return 0;
}