// This program prints addition and muiltiplication tables for
// the range of numbers entered. The numbers must be positive
// and the upper value of the range must be greater then the lower
// value of the range.

#include <iostream>
#include <iomanip>

using namespace std;

int main()
{
  char choice;
  int i, j, low = 0, high = 0;
  cout  << setprecision(0);
  do {
    cout << "\n\t\tArithmetic Table Printing\n"   // Print menu.
         << "\tR = Enter Range\n"
         << "\tA = Print Addition Table\n"
         << "\tM = Print Multiplication Table\n"
         << "\tQ = Quit\n\n"
         << "Enter your choice: ";
    cin >> choice;
    cout << "\n\n";

    void enterRange2()
    {
    switch (choice) {
      case('R') :
      case('r') : cout << "Enter low number: ";   // Get high and low numbers.
                  cin  >> low;
                  cout << "Enter high number: ";
                  cin  >> high;
                  if ((low >= 1) && (high > low)   // If range is good, proceed.
                       && (high < 32))
                    break;                         // Otherwise, process the error.
                  else if (high <= low) {
                    cout << "Error! High number must be greater than Low number.\n\n";
                  } else if (high <= 1) {
                    cout << "Error! High number must be greater than 1.\n\n";
                   }
                   else if (low <= 0) {
                   cout << "Error! Low number must be greater than 0.\n\n";
                  } else if (high > 31) {
                  }
                  high = 0;
                  low = 0;
               }
     void printAdditionTable3()
     {
      case('A') :
      case('a') :  if ((high == 0) || (low == 0))  {       // Stop if we don't have
                      cout << "Error! Invalid range!\n";    // a good range.
                      break;
                    }
                   cout << "  Addition Table\n";            // Print addition table.
                   for (i = 0; i <= (high - low) + 2; i++)
                     cout << "-----";
                   cout << "\n    ";
                   for (i = low; i <= high; i++)
                     cout << setw(5) << i;
                   cout << "\n";
                   for (i = 0; i <= (high - low) + 2; i++)
                     cout << "-----";
                   cout << "\n";
                    for (i = low; i <= high; i++) {
                      cout << setw(2) << i << " |" ;
                      for (j = low; j <= high; j++)
                        cout << setw(5) << i+j;
                      cout << "\n";
                    }
              }
     void printMultipicationTable4()
     {
      case('M') :
      case('m') :  if ((high == 0) || (low == 0))  {       // Stop if we don't have
                      cout << "Error! Invalid range!\n";    // a good range.
                      break;
                    }
                   cout << "  Multiplication Table\n";     // Print multiplication table.
                   for (i = 0; i <= (high - low) + 2; i++)
                     cout << "------";
                   cout << "\n    ";
                   for (i = low; i <= high; i++)
                     cout << setw(6) << i;
                   cout << "\n";
                   for (i = 0; i <= (high - low) + 2; i++)
                     cout << "------";
                   cout << "\n";
                    for (i = low; i <= high; i++) {
                      cout << setw(2) << i << " |" ;
                      for (j = low; j <= high; j++)
                        cout << setw(6) << i*j;
                      cout << "\n";
                    }
        }
     void quit5()
     {
      case('Q') :
      case('q') : break;
      default : cout << "Enter \"R\", \"A\", \"M\", or \"Q\"";
    }
  } while ((choice != 'Q') && (choice != 'q'));
} // main()
}