ex3_13.cpp

Visual C++ 2005的源代码

// Ex3_13.cpp
// Demonstrating nested loops to compute factorials
#include <iostream>

using std::cin;
using std::cout;
using std::endl;

int main()
{
   char indicator = 'n';
   long value = 0,
        factorial = 0;

   do
   {
      cout << endl
           << "Enter an integer value: ";
      cin >> value;

      factorial = 1;
      for(int i = 2; i <= value; i++)
         factorial *= i;

      cout << "Factorial " << value << " is " << factorial;
      cout << endl
           << "Do you want to enter another value (y or n)? ";
      cin >> indicator;
   } while((indicator == 'y') || (indicator == 'Y'));

   return 0;
}