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  1. #include <stdio.h>
  2. #define STUDENTS 3
  3. #define EXAMS 4
  4.  
  5. // 7.24
  6. void printArray(int grades[][EXAMS], int students, int exams);
  7. void minimum(int grades[][EXAMS], int students, int exams);
  8. void maximum(int grades[][EXAMS], int students, int exams);
  9. void average(int grades[][EXAMS], int students, int exams);
  10.  
  11.  
  12. int main(void)
  13. {
  14. 	int studentGrade[STUDENTS][EXAMS] =
  15. 	{{77, 68, 86, 98},
  16. 	 {75, 78, 96, 68},
  17. 	 {84, 89, 77, 80}};
  18.  
  19. 	void (*processGrade[4])(int[][EXAMS], int, int) = { printArray, minimum, maximum, average };
  20.  
  21. 	printf("%s", " 0  Print the array of grades \n1  Find the minimum grade\n2  Find the maximum grade\n3  Print the average on all tests for each student\n4  End program\n");
  22. 	int choise;
  23. 	scanf("%d", &choise);
  24. 	while (choise >= 0 && choise < 4)
  25. 	{
  26. 		(*processGrade[choise])(studentGrade, STUDENTS, EXAMS);
  27.  
  28. 		printf("%s", " 0  Print the array of grades \n1  Find the minimum grade\n2  Find the maximum grade\n3  Print the average on all tests for each student\n4  End program\n");
  29. 		scanf("%d", &choise);
  30. 	}
  31. 	printArray(studentGrade, STUDENTS, EXAMS);
  32. 	minimum(studentGrade, STUDENTS, EXAMS);
  33. 	maximum(studentGrade, STUDENTS, EXAMS);
  34. 	average(studentGrade, STUDENTS, EXAMS);
  35.  
  36. }
  37. void printArray(int grades[][EXAMS], int students, int exams)
  38. {
  39. 	printf("%s", "                [0]  [1]  [2]  [3]");
  40. 	for (int i = 0; i < students; i++)
  41. 	{
  42. 		printf("\nStudentGrade[%d] ", i);
  43.  
  44. 		for (int j = 0; j < exams; j++)
  45. 		{
  46. 			printf("%-5d", grades[i][j]);
  47.  
  48. 		}
  49. 	}
  50. }
  51.  
  52. void minimum(int grades[][EXAMS], int students, int exams)
  53. {
  54. 	int min = grades[0][0];
  55.  
  56. 	for (int i = 0; i < students; i++)
  57. 	{
  58. 		for (int j = 0; j < exams; j++)
  59. 		{
  60. 			if (grades[i][j] < min)
  61. 			{
  62. 				min = grades[i][j];
  63. 			}
  64. 		}
  65. 	}
  66. 	printf("\nLOwer grade: %d\n", min);
  67. }
  68.  
  69. void maximum(int grades[][EXAMS], int students, int exams)
  70. {
  71. 	int max = grades[0][0];
  72.  
  73. 	for (int i = 0; i < students; i++)
  74. 	{
  75. 		for (int j = 0; j < exams; j++)
  76. 		{
  77. 			if (grades[i][j] > max)
  78. 			{
  79. 				max = grades[i][j];
  80. 			}
  81. 		}
  82. 	}
  83. 	printf("Highest grade: %d\n", max);
  84. }
  85.  
  86. void average(int grades[][EXAMS], int students, int exams)
  87. {
  88. 	int sum = 0;
  89. 	double aver;
  90.  
  91. 	for (int i = 0; i < students; i++)
  92. 	{
  93. 		for (int j = 0; j < exams; j++)
  94. 		{
  95. 			sum += grades[i][j];
  96. 		}
  97.  
  98. 		aver = sum / 4.0;
  99. 		printf("the average grade for student %d is %f\n", (i+1), aver);
  100. 	}
  101.  
  102.  
  103. }
Success #stdin #stdout 0.01s 5324KB
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stdin
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4
stdout
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 0  Print the array of grades 
1  Find the minimum grade
2  Find the maximum grade
3  Print the average on all tests for each student
4  End program
                [0]  [1]  [2]  [3]
StudentGrade[0] 77   68   86   98   
StudentGrade[1] 75   78   96   68   
StudentGrade[2] 84   89   77   80    0  Print the array of grades 
1  Find the minimum grade
2  Find the maximum grade
3  Print the average on all tests for each student
4  End program

LOwer grade: 68
 0  Print the array of grades 
1  Find the minimum grade
2  Find the maximum grade
3  Print the average on all tests for each student
4  End program
Highest grade: 98
 0  Print the array of grades 
1  Find the minimum grade
2  Find the maximum grade
3  Print the average on all tests for each student
4  End program
the average grade for student 1 is 82.250000
the average grade for student 2 is 161.500000
the average grade for student 3 is 244.000000
 0  Print the array of grades 
1  Find the minimum grade
2  Find the maximum grade
3  Print the average on all tests for each student
4  End program
                [0]  [1]  [2]  [3]
StudentGrade[0] 77   68   86   98   
StudentGrade[1] 75   78   96   68   
StudentGrade[2] 84   89   77   80   
LOwer grade: 68
Highest grade: 98
the average grade for student 1 is 82.250000
the average grade for student 2 is 161.500000
the average grade for student 3 is 244.000000
https://ideone.com/VanPYH
language:
C (gcc 8.3)
created:
13 hours ago
visibility:
public

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