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  1. //Tahmidur Rahman                      CSC5                 ch.8  pg. 487 #2
  2.  
  3. #include <iostream>
  4. using namespace std;
  5.  
  6. /******************************************************************************
  7.  * 
  8.  * Lottery Winners
  9.  * ____________________________________________________________________________
  10.  * A lottery ticket buyer purchases 10 tickets a week, always playing the same
  11.  * 10 5-digit "lucky" combinations. Write a program that initializes an array
  12.  * or a vector with these numbers and then lets the player enter tis week's
  13.  * winning 5 digit number. The program should perform a linear search through
  14.  * the list of the player's numbers and report whether or not one of the 
  15.  * tickets is a winner this week. Here are the numbers:
  16.  * 
  17.  * 		13579 26791 2679, 33445 55555
  18.  *		62483 77777 79422 85647 93121
  19.  *_____________________________________________________________________________
  20.  * input
  21.  *  winNums[] : array that stores all winning numbers
  22.  * 	lottery   : stores value of the position
  23.  *	entnum    : enter lottery number
  24.  * 
  25.  * Output
  26.  * 	"Sorry better luck next time" : if # entered wasn't lotter winner
  27.  * 	""You're a winner!!!"		  :	if # entered wasn the lotter winner
  28.  * 
  29.  ******************************************************************************/
  30.  
  31.  /*******************************************************************************
  32.  * 
  33.  *  Void Search
  34.  * ____________________________________________________________________________
  35.  * A simple linear search should be used to locate the number entered by the
  36.  * user
  37.  * ____________________________________________________________________________
  38.  * 	
  39.  * const int array[]   //Array that the stores all the ID numbers
  40.  * int SIZE			   //global constant for size of array
  41.  * int value           //user entered ID #
  42.  * int ind = 0        	//subsript to search array
  43.  * int position = -1  	//record position of search value
  44.  * bool found = false 	//flag to indiacate if value was found
  45.  * 
  46.  ******************************************************************************/
  47.  
  48.  
  49. int Search( const int[], int, int);
  50. const int size = 10;
  51.  
  52. int main() {
  53.  
  54. 	//list of valid account numbers
  55. 	int winNums[size] = {13579, 26791, 26792, 33445, 55555,
  56. 						 62483, 77777, 79422, 85647, 93121};
  57.  
  58. 	int lottery;
  59. 	int entnum;
  60.  
  61. 	cout << "Enter the charge account number:\n";
  62. 	cin >> entnum;
  63.  
  64. 	//search for the winning number
  65. 	lottery = Search(winNums, size, entnum);
  66.  
  67. 	//if position returns -1
  68. 	if (lottery == -1)
  69. 		cout << "Sorry better luck next time.";
  70.  
  71. 	//if position returns anything but -1	
  72. 	else
  73. 	{
  74. 		cout << "You're a winner!!!\n\n";
  75.  
  76.  
  77. 	}
  78.  
  79. 	return 0;
  80. }
  81.  
  82. int Search( const int array[], int SIZE, int value)
  83. {
  84. 	int ind = 0;		//subsript to search array
  85. 	int position = -1;	//record position of search value
  86. 	bool found = false; //flag to indiacate if value was found
  87.  
  88. 	while(ind < SIZE && !found)
  89. 	{
  90. 		if (array[ind] == value)  //if value is found
  91. 		{
  92. 			found = true;       //set flag
  93. 			position = ind;     //record values subscript
  94. 		}
  95. 		ind++;                  //repeat process with next element
  96. 	}
  97. 	return position;            //return position or -1
  98. }
  99.  
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Enter the charge account number:
You're a winner!!!
https://ideone.com/roPACJ
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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