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  1. //Roman Lara Delgado					CSC5				Chapter 8, P.487, #1
  2. //
  3. /*******************************************************************************
  4. *
  5. * Determine Invalid Account Number
  6. *_______________________________________________________________________________
  7. * This program determines if an account number is invalid meaning it does not 
  8. * exist in a set of account numbers.
  9. * ______________________________________________________________________________
  10. * INPUT
  11. *	accNumber_user : Account number entered by the user.
  12. *
  13. * OUTPUT
  14. *	A message that says whether the account number entered
  15. *	is valid or not.
  16. * ******************************************************************************
  17. *							FUNCTION
  18. * ******************************************************************************
  19. *	int searchList(const int [], int, int)
  20. * ------------------------------------------------------------------------------
  21. *   This function locates if a value exists in an array.
  22. * 
  23. *		PARAMETERS:
  24. *			array[] : receives the values of an array.
  25. *			size	: receives the number of elements
  26. *				      of the array.
  27. *			value	: receives a value that the user 
  28. *					  wanted to determine whether the
  29. *					  value exists in the array or not.
  30. *			
  31. *******************************************************************************/
  32. #include <iostream>
  33. using namespace std;
  34.  
  35. int searchList(const int [], int, int);	//Function prototype
  36. const int SIZE = 18; //GLOBAL VARIABLE - Number of elements of an array.
  37.  
  38. int main () //Start main
  39. {
  40. 	//Array that stores the account numbers of the data base.
  41. 	int accNumber_saved[SIZE] = {5658845, 8080152, 1005231, 4520125, 4562555,
  42. 							 	 6545231, 7895122, 5552012, 3852085, 8777541,
  43. 								 5050552, 7576651, 8451277, 7825877, 7881200,
  44. 								 1302850, 1250255, 4581002};
  45. 	int accNumber_user;	//INPUT - Account number entered by the user.
  46. 	int results;		//Variable that determines if a number is valid or not.
  47.  
  48. 	//Enter the account number by the user.
  49. 	cout << "Enter your account number: " << endl;
  50. 	cin >> accNumber_user;
  51.  
  52. 	//Assign a value to results by calling the function searchList
  53. 	results = searchList(accNumber_saved, SIZE, accNumber_user);
  54.  
  55. 	//if results is -1, then the number is invalid.
  56. 	if(results == -1)
  57. 	{
  58. 		cout << "The number is invalid.";
  59. 	}
  60. 	else //Otherwise is valid.
  61. 	{
  62. 		cout << "The number is valid.";
  63. 	}
  64. 	return 0;
  65. } //End main
  66.  
  67. //searchList definition
  68. int searchList(const int array[], int size, int value) //Start seachList
  69. {
  70. 	int index = 0;	//subscript of the array
  71. 	int position = -1; //To record position of search value
  72. 	bool found = false; //Flag to indicate if the value was found
  73.  
  74. 	while (index < size && !found)
  75. 	{
  76. 		if (array[index] == value) //If the value us found
  77. 		{
  78. 			found = true; //Set the flag
  79. 			position = index;	//Record the value's subscript
  80. 		}
  81. 		index++;	//Go to the next element
  82. 	}
  83. 	return position;	//Return the position, or -1.
  84. }	//End searchList
  85.  
Success #stdin #stdout 0.01s 5288KB
comments (?)
stdin 
2635172
stdout 
Enter your account number: 
The number is invalid.
https://ideone.com/xzt97K
Determine Invalid Account Number
language:
C++ (gcc 8.3)
created:
14 days ago
visibility:
public

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