fork(1) download
copy 
  1. //Nicolas Ruano                  CS1A                    Chapter 4, Pp. 220, #2
  2. //
  3. /******************************************************************************
  4.  * 
  5.  * CONVERTING TO ROMAN NUMERALS
  6.  * ____________________________________________________________________________
  7.  * The program converts numbers n a set of 1-10 into a set of roman numerals,
  8.  * based on the set of numbers listed 
  9.  * 
  10.  *_____________________________________________________________________________
  11.  * INPUT
  12.  *		NumVal                        :number value enter by the user
  13.  * 
  14.  * OUTPUT
  15.  *		number roman of numbers in a set of 1-10
  16. ******************************************************************************/
  17. #include <iostream>
  18. using namespace std;
  19.  
  20. int main() {
  21.     int number;
  22.     char choice;  // For menu option
  23.  
  24.     cout << "Welcome to the Roman Numeral Converter!\n";
  25.  
  26.     do {
  27.         // Step 1: Ask user for a number
  28.         cout << "\nPlease enter a number from 1 to 10: ";
  29.         cin >> number;
  30.  
  31.         // Step 2: Input validation with nested if statements
  32.         if (number < 1) {
  33.             cout << "Oops! The number is too small. Try a number between 1 and 10.\n";
  34.         } else if (number > 10) {
  35.             cout << "Oops! The number is too big. Try a number between 1 and 10.\n";
  36.         } else {
  37.             // Step 3: Use switch to convert number to Roman numeral
  38.             cout << "The Roman numeral for " << number << " is ";
  39.             switch(number) {
  40.                 case 1:  cout << "I\n"; break;
  41.                 case 2:  cout << "II\n"; break;
  42.                 case 3:  cout << "III\n"; break;
  43.                 case 4:  cout << "IV\n"; break;
  44.                 case 5:  cout << "V\n"; break;
  45.                 case 6:  cout << "VI\n"; break;
  46.                 case 7:  cout << "VII\n"; break;
  47.                 case 8:  cout << "VIII\n"; break;
  48.                 case 9:  cout << "IX\n"; break;
  49.                 case 10: cout << "X\n"; break;
  50.                 default: cout << "Error\n";  // Safety net
  51.             }
  52.         }
  53.  
  54.         // Step 4: Ask if the user wants to convert another number
  55.         cout << "\nDo you want to convert another number? (Y/N): ";
  56.         cin >> choice;
  57.  
  58.         // Use conditional operator to display a friendly message
  59.         cout << ((choice == 'Y' || choice == 'y') ? "Great! Let's do another one." : "Okay! Thanks for using the converter.\n");
  60.  
  61.     } while(choice == 'Y' || choice == 'y');
  62.  
  63.     cout << "Goodbye!\n";
  64.     return 0;
  65. }
  66.  
Success #stdin #stdout 0.01s 5328KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Welcome to the Roman Numeral Converter!

Please enter a number from 1 to 10: Oops! The number is too big. Try a number between 1 and 10.

Do you want to convert another number? (Y/N): Okay! Thanks for using the converter.
Goodbye!
https://ideone.com/NTjFAj
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!