Subject : Structured Programming Approach

Title : Arrays, String, Structures and Union

Difficulty : Medium

Structure:

1. Structure is a collection of multiple data elements that can be of different data types.

2. Array is a collection of data items of same type, while structure can have data items of different types.

3. The memory space required to store one variable of structure is equal to the memory space required by all the elements independently to be stored in memory.

Syntax:

struct structure_name

{

    data_type variable_name;

    data_type variable_name;

    -

    -

}

Program:

#include <stdio.h>

struct book

{

    int price;

    char title[80];

    char author[80];

};

void accept(struct book list[80], int s);

void display(struct book list[80], int s);

void bsortDesc(struct book list[80], int s);

void main()

{

    struct book data[20];

    int n;

    clrscr();

    accept(data,10);

    bsortDesc(data, 10);

    display(data, 10);

    getch();

}

void accept(struct book list[80], int s)

{

    int i;

    for (i = 0; i < s; i++)

    {

        printf("\nEnter title : ");

        scanf("%s", &list[i].title);

        printf("Enter Author name: ");

        scanf("%s",&list[i].author);

        printf("Enter price : ");

        scanf("%d", &list[i].price);

    }

}

void display(struct book list[80], int s)

{

    int i;

    printf("\n\nTitle\t\tAuthor\t\tprice\n");

    printf("-------------------------------------\n");

    for (i = 0; i < s; i++)

    {

        printf("%s\t\t%s\t\t%d\n", list[i].title, list[i].author, list[i].price);

    }

}

void bsortDesc(struct book list[80], int s)

{

    int i, j;

    struct book temp;

    for (i = 0; i < s ; i++)

    {

        for (j = 0; j < (s -i); j++)

        {

            if (list[j].price > list[j + 1].price)

            {

                temp = list[j];

                list[j] = list[j + 1];

                list[j + 1] = temp;

            }

        }

    }

}

Output:

Enter Title: physics

Enter Author name: Einstein

Enter Price:1000

Enter Title:english

Enter Author name:willey

Enter Price:900

Enter Title:chemistry

Enter Author name:narayan

Enter Price:800

Enter Title:history

Enter Author name:george

Enter Price:700

Enter Title:geography

Enter Author name:bailey

Enter Price:600

Enter Title:AOA

Enter Author name:Koreman

Enter Price:500

Enter Title:SPA

Enter Author name:Harish

Enter Price:400

Enter Title:Maths

Enter Author name:kumbhojkar

Enter Price:300

Enter Title:CG

Enter Author name:hern

Enter Price:200

Enter Title:python

Enter Author name:naryan

Enter Price:100