fork download
copy 
  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. int main ()
  4. {
  5. 	int digit_count, // the number of digits
  6. 	digit_10, // determine digit value of 10, ones,
  7. 	          // tens, hundreds, thousands, etc
  8. 	i,  // loop counter
  9. 	left_digit, // the leftmost digit of the current number
  10. 	new_num, // temporary number value
  11. 	number, // current number
  12. 	orig_number; // the number the user typed in
  13.  
  14. 	// initialize variables
  15. 	digit_count = 0;
  16. 	digit_10 = 1;
  17.  
  18. 	// prompt for a number 
  19. 	printf ("Enter your number: ");
  20. 	scanf ("%d", &number);
  21.  
  22. 	// save the original number for later
  23. 	orig_number = number;
  24.  
  25. 	// echo the number entered to the screen
  26. 	printf ("\nThe number %i is: ", number);
  27.  
  28. 	// Print zero and exit if the number is 0
  29. 	if (orig_number ==0)
  30. 	{
  31. 		printf ("zero \n");
  32. 		exit (0);
  33. 	}
  34. 	else if (orig_number < 0)
  35. 	{
  36. 		fprintf (stderr, "Error, neg numbers are not allowed \n");
  37. 		exit (EXIT_FAILURE);
  38. 	}
  39.  
  40. 	// determine the number of digits
  41. 	while (number != 0)
  42. 	{
  43. 		number = number / 10;
  44. 		digit_count++;
  45. 		digit_10 = digit_10 * 10;
  46. 	}  // digit count while loop
  47.  
  48. 	// determine each digit starting from the left, one digit at a time
  49. 	i = digit_count;
  50. 	new_num = orig_number;
  51. 	digit_10/=10;
  52.  
  53. 	while (i != 0)
  54. 	{
  55. 		left_digit = new_num / digit_10;
  56. 		new_num = new_num % digit_10;
  57. 		digit_10 /=10;
  58. 		i--;
  59.  
  60. 		// print the English value of the current left digit
  61. 		switch(left_digit)
  62. 		{
  63. 			case 0:
  64. 				printf ("zero ");
  65. 				break;
  66. 			case 1:
  67. 				printf ("one ");
  68. 				break;
  69. 			case 2:
  70. 				printf ("two ");
  71. 				break;
  72. 			case 3:
  73. 				printf ("three ");
  74. 				break;
  75. 			case 4:
  76. 				printf ("four ");
  77. 				break;
  78. 			case 5:
  79. 				printf ("five ");
  80. 				break;
  81. 			case 6:
  82. 				printf ("six ");
  83. 				break;
  84. 			case 7:
  85. 				printf ("seven ");
  86. 				break;
  87. 			case 8:
  88. 				printf ("eight ");
  89. 				break;
  90. 			case 9:
  91. 				printf ("nine ");
  92. 				break;
  93. 			default:
  94. 				printf ("invalid ");
  95. 				break;
  96. 		} // end switch
  97.  
  98.  
  99. 	} // while loop for left digits
  100.  
  101. 	printf ("\n"); // new line before quitting
  102. 	return (0);
  103. } // end main
Success #stdin #stdout 0.01s 5328KB
comments (?)
stdin
copy 
932
stdout
copy 
Enter your number: 
The number 932 is: nine three two
https://ideone.com/vLjC0Q
language:
C (clang 8.0)
created:
3 hours 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!