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C Array of Structure

Why use an array of structures? 

An array of structres in C can be defined as the collection of multiple structures variables where each variable contains information about different entities. The array of structure in c are used to store information about multiple entities of different data types. The array of structures is also known as the collection of structures.

Fig: Array structure in c

Program of array of structure

 

#include<stdio.h>  

struct student  

{  

    char name[20];  

    int id;  

    float marks;  

};  

void main()  

{  

    struct student s1,s2,s3;  

    int dummy;  

    printf("Enter the name, id, and marks of student 1 ");  

    scanf("%s %d %f",s1.name,&s1.id,&s1.marks);  

    scanf("%c",&dummy);  

    printf("Enter the name, id, and marks of student 2 ");  

    scanf("%s %d %f",s2.name,&s2.id,&s2.marks);  

    scanf("%c",&dummy);  

    printf("Enter the name, id, and marks of student 3 ");  

    scanf("%s %d %f",s3.name,&s3.id,&s3.marks);  

    scanf("%c",&dummy);  

    printf("Printing the details....\n");  

    printf("%s %d %f\n",s1.name,s1.id,s1.marks);  

    printf("%s %d %f\n",s2.name,s2.id,s2.marks);  

    printf("%s %d %f\n",s3.name,s3.id,s3.marks);  

}  

 

Output

Enter the name, id, and marks of student 1 Pramod 90 90 

Enter the name, id, and marks of student 2 Amit90 90 

Enter the name, id, and marks of student 3 Ankit 90 90      

Printing the details....       

Pramod 90 90.000000                         

Amit  90 90.000000                     

Ankit  90 90.000000