C program to demonstrate example of structure of array

 In this program, we will learn how to declare an array of some data type's variables within the structure, which is known as structure of array?

In this example, there is a structure named student having two arrays name and marks, name is the character array of 30 characters and marks is the integer array of 5 integers. name will store the name of the student and marks will store the marks of 5 subjects.

/*C program to demonstrate example of structure of array.*/

#include <stdio.h>

struct student {
    char name[30];
    int marks[5];
    int total;
    float perc;
};

int main()
{
    struct student std;
    int i;

    printf("Enter name: ");
    gets(std.name);

    printf("Enter marks:\n");
    std.total = 0;
    for (i = 0; i < 5; i++) {
        printf("Marks in subject %d ?: ", i + 1);
        scanf("%d", &std.marks[i]);
        std.total += std.marks[i];
    }
    std.perc = (float)((float)std.total / (float)500) * 100;

    printf("\nName: %s \nTotal: %d \nPercentage: %.2f", std.name, std.total, std.perc);

    return 0;
}

Output

Enter name: Mike Enter marks: Marks in subject 1? : 88 Marks in subject 2? : 98 Marks in subject 3? : 98 Marks in subject 4? : 78 Marks in subject 5? : 99 Name: Mike Total: 461 Percentage: 92.20

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