CSCI 1300 Quiz: 6 Feb 2007

Special Weird Instructions:
On any question, you may write the word UNCERTAIN 
beside your answer.  
For any UNCERTAIN answer you will receive:
  30% credit even if you are wrong!
  But only 90% credit if you are right!

1. Write an example of an infinite loop.
   int i = 1;
   while(i > 0)
   {
     ++i;
   }
   

2. What is the output of this loop when it appears in a
   complete program?

   int n = 0;
   while (n <= 20)
   {
      cout << n << endl;
      ++n;
    }
 
3. Complete this program by completing the missing loop:
#include <iostream>
#include <cstdlib>
using namespace std;

int main( )
{
    int i = 1;
    int count = 0;

    // Complete this while loop so that it sets count
    // equal to the number of times that i must be
    // doubled (that is, multiplied by two) before
    // i gets bigger than one million:
    while (i <= 1000000) // Fill in the Boolean expression
    {
        ...              // AND ALSO fill in the loop body
        i = 2*i;
        ++count;
    }

    cout << "If you double 1 " << count << " times, "
         << "you'll have more than a million!" << endl;
}







































    cout << "If you double 1 " << count << " times, "
         << "it will surpass one million!' << endl;

    return EXIT_SUCCESS;
}