Use a two-dimensional array to store the numeric grade - C Array

C examples for Array:Multidimensional Arrays

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Description

Use a two-dimensional array to store the numeric grade

Demo Code

#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#define CLASSES 3//from ww  w .j  a v  a2s  .  c  o  m
#define GRADES 30

int grade[CLASSES][GRADES];

void enter_grades(void);
int get_grade(int num);
void disp_grades(int g[][GRADES]);

int main(void)
{
   char ch, str[80];

   for (;;)
      do {
         printf("(E)nter grades\n");
         printf("(R)eport grades\n");
         printf(" (Q)uit\n");
         gets_s(str);
         ch = toupper(*str);
      } while (ch != 'E' && ch != 'R' && ch != 'Q');

      switch (ch) {
      case 'E':
         enter_grades();
         break;
      case 'R':
         disp_grades(grade);
         break;
      case 'Q':
         exit(0);
      }
     return 0;
  }

  /* Enter the student's grades. */

  void enter_grades(void)

  {
     int t, i;

     for (t = 0; t<CLASSES; t++) {
        printf("Class # %d:\n", t + 1);

        for (i = 0; i<GRADES; ++i)
           grade[t][i] = get_grade(i);
     }
  }

  /* Read a grade. */

  int get_grade(int num)
  {
     char s[80];

     printf("Enter grade for student # %d:\n", num + 1);

     gets_s(s);
     return(atoi(s));

  }

  /* Display grades. */

  void disp_grades(int g[][GRADES])

  {
     int t, i;

     for (t = 0; t<CLASSES; ++t) {
        printf("Class # %d:\n", t + 1);

        for (i = 0; i<GRADES; ++i)
           printf("Student #%d is %d\n", i + 1, g[t][i]);
     }
  }

Result


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