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  1. //Cecilia Rangel	 CSC5	 Chapter 9,				 P.537, #2
  2. //
  3. /**************************************************************
  4.  *
  5.  *  COMPUTE TEST SCORES
  6.  * ____________________________________________________________
  7.  * This program dynammically allocates an array large enough
  8.  * to hold a user defined number of test scores. Once all the 
  9.  * scores are entered, the array should be passed to a function
  10.  * that sorts them in ascending order. The program should
  11.  * display the sorted list of scores and averages with
  12.  * appropriate headings.
  13.  *_____________________________________________________________
  14.  * INPUT
  15.  * SIZE				: INPUT the ammount of numbers to allocate
  16.  * SCORES			: INPUT the test scores to be sorted
  17.  *
  18.  * OUTPUT
  19.  * SORTED			: OUTPUT the scores sorted from
  20.  *					heighest to lowest 
  21.  * AVERAGE			: OUTPUT the average of all the scores
  22.  * ***************************************************************/	
  23. #include <iostream>
  24. #include <iomanip>
  25. using namespace std;
  26.  
  27. //Function prototypes
  28. void sortElements(int, int*); 
  29. int calcAvg(int, int*);
  30.  
  31. int main() 
  32. {
  33. 	int SIZE;            //Size of memory allocated
  34. 	int* ptr;            //pointer for memory allocated
  35. 	ptr = new int[SIZE]; //allocate enough memory for SIZE
  36. 	int avg;             //OUTPUT - average of test scores
  37. //
  38. //User defines size of memory allocated
  39. 	cout << "Enter the number of test scores to enter.\n";
  40. 	cin >> SIZE;
  41. //
  42. //acquire test scores
  43. 	for (int count = 0; count < SIZE; count ++)
  44. 	{
  45. 		cout << "Enter test score #" << count + 1 << endl;
  46. 		cin >> *(ptr + count);
  47. 		while (*(ptr + count) < 0)
  48. 		{
  49. 			cout << "Enter a valid test score.\n";
  50. 			cin >> *(ptr + count);
  51. 		}
  52. 	}
  53. //
  54. //call to functions
  55. 	avg = calcAvg(SIZE, ptr);
  56. 	sortElements(SIZE, ptr);
  57. //
  58. //output test scores and average
  59. 	cout << "Test Scores from lowest grade to highest grade.\n";
  60. 	for (int count = 0; count < SIZE; count ++)
  61. 	{
  62. 		cout << *(ptr + count) << endl;
  63. 	}
  64. 	cout << "Test Score average: ";
  65. 	cout << avg << endl;
  66. 	return 0;
  67. }
  68.  
  69. void sortElements(int SIZE, int* ptr)
  70. {
  71. 	int startSearch;
  72. 	int lowScore;
  73. 	int lowElement;
  74. 	for (startSearch = 0; startSearch < SIZE; startSearch++)
  75. 	{
  76. 		lowScore = *(ptr + startSearch);
  77. 		lowElement = startSearch;
  78. 		for (int count = startSearch + 1; count < SIZE; count++)
  79. 		{
  80. 			if (lowScore > *(ptr + count))
  81. 			{
  82. 				lowScore = *(ptr + count);
  83. 				lowElement = count;
  84. 			}
  85. 		}
  86. 		*(ptr + lowElement) = *(ptr + startSearch);
  87. 		*(ptr + startSearch) = lowScore;
  88. 	}
  89. }
  90. int calcAvg(int SIZE, int* ptr)
  91. {
  92. 	int total = 0;
  93. 	int avg = 0;
  94. 	for (int count = 0; count < SIZE; count++)
  95. 	{
  96. 		total += *(ptr + count);
  97. 	}
  98. 	avg = total / SIZE;
  99. 	return avg;
  100. }
Success #stdin #stdout 0s 5348KB
comments (?)
stdin 
5
99
-22
69
52
88
stdout 
Enter the number of test scores to enter.
Enter test score #1
Enter test score #2
Enter a valid test score.
Enter test score #3
Enter test score #4
Enter test score #5
Test Scores from lowest grade to highest grade.
0
52
69
88
99
Test Score average: 61
https://ideone.com/R5IHE3
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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