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  1. //Nathan Dominguez                    	CSC5                Chapter 8, P.487, #1
  2. //
  3. /*******************************************************************************
  4. *
  5. * Validate an Account Charge with a Linear Search
  6. *_______________________________________________________________________________
  7. * This program prompts the user to enter a charge account number, the program
  8. * then uses a linear seach method to determine if the entered number is a valid 
  9. * account charge number.
  10. *_______________________________________________________________________________
  11. * INPUT
  12. *	number        : the input number
  13. *   acc_num[]     :	the array holds 18 charge account numbers
  14. * OUTPUT
  15. *	
  16. *	result        : the variable stores the values 0-17 and -1 from the 
  17. *                   LinearSearch function.
  18. *	LinearSearch  : it is a function that returns 0-17 or -1. If this function
  19. *				    returns 0-17 then the user's input is a winning ticket, if 
  20. *                   it returns -1 then the user's input is not a winning ticket.
  21. *	index         :	stores the index number of the acc_num[] array in the 
  22. *                   LinearSearch() function.
  23. *	position      :	the variable returns the position of the user's number. If 
  24. *				    position = -1 then the user's number was not found
  25. * 
  26. *******************************************************************************/
  27. #include <iostream>
  28. using namespace std;
  29.  
  30. //LinearSearch() prototype
  31. int LinearSearch(int array[], int size, int number); 
  32.  
  33. int main() 
  34. {
  35. 	//CONSTANT - array with 18 valid account charge numbers
  36. 	int acc_num[] = {5658845, 4520125, 7895122, 8777541, 8451277, 1302850, 
  37. 					8080152, 4562555, 5552012, 5050552, 7825877, 1250255,
  38. 					1005231, 6545231, 3852085, 7576651, 7881200, 4581002};
  39.  
  40. 	int number;
  41. 	//
  42.     //user input variable
  43. 	cout << "Enter your charge account number: ";
  44. 	cin >> number;
  45.     //
  46. 	//Input Validation
  47. 	while (number < 0 || number > 9999999)
  48. 	{
  49. 		cout << number << endl;
  50. 		cout << "Not a valid entry, please enter a positive 7-digit number: ";
  51. 		cin >> number;
  52. 	}
  53. 	cout << number << endl;
  54.  
  55. 	//setting a variable to hold the LinearSearch output
  56. 	int result = LinearSearch(acc_num, 18, number);
  57.  
  58. 	//VALIDATE
  59. 	if (result >= 0)
  60. 	{
  61. 		cout << number << " is a valid number." << endl;
  62. 	}
  63. 	else
  64. 	{
  65. 		cout << number << " is not a valid number." << endl;
  66. 	}
  67. 	return 0;
  68. }
  69. //
  70. //LinearSearch function definition
  71. int LinearSearch(int array[], int size, int number)
  72. {
  73. 	int index = 0;
  74. 	int position = -1;
  75. 	bool found = false;
  76. 	//
  77. 	//LOOP - find user input
  78. 	while (index < size && !found)
  79. 	{
  80. 		if (array[index] == number)
  81. 		{
  82. 			found = true;
  83. 			position = index;
  84. 		}
  85. 		index++;
  86. 	}
  87. 	return position;
  88. }
Success #stdin #stdout 0.01s 5304KB
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stdin
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5658845
stdout
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Enter your charge account number: 5658845
5658845 is a valid number.
https://ideone.com/3y2egB
language:
C++ (gcc 8.3)
created:
1 year ago
visibility:
secret

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