Structures and Unions

Rewrite the previous program using an array member to represent the three subjects.

#include <stdio.h>
void main()
   {                                                               
       struct  marks                                               
       {                                                           
           int  sub[3];                                            
           int  total;                                             
       };                                                          
       struct marks student[3] =                            
       {45,67,81,0,75,53,69,0,57,36,71,0};                  
       struct marks total={0,0,0,0};
       int  i,j;                                                   
                                                                   
       for(i = 0; i <= 2; i++)                                     
       {                                                           
          for(j = 0; j <= 2; j++)                                  
          {                                                        
             student[i].total += student[i].sub[j];                
             total.sub[j] += student[i].sub[j];                    
          }                                                        
          total.total += student[i].total;                         
       }                                                           
       printf("STUDENT         TOTAL\n");
       for(i = 0; i <= 2; i++)
   printf("Student[%d]      %d\n", i+1, student[i].total);
       printf("\nSUBJECT         TOTAL\n");
       for(j = 0; j <= 2; j++)
   printf("Subject-%d       %d\n", j+1, total.sub[j]);
       printf("\nGrand Total  =  %d\n", total.total);
       getch();
   }