To Be Familiarize With Structures

1. WAP to create a structure Book having name, Id, price as its members. Create one variables of type Book and display its content.
2. WAP to create a structure student and enter data for 5 students having name roll, marks as its data members. Display content of student having the highest marks.
3. WAP to show concept of nested structure
4. WAP to create structure complex and find the sum of two complex numbers using a function
5. WAP to create distance structure and find sum and difference of two distance variables using a function. 

====================================================================================

1.) Question 1

#include<stdio.h>

#include<conio.h>

#include<string.h>

struct book

{

    int id;

    float price;

    char name[20];

};

void main()

{

    struct book b;

    printf("\n enter book id");

    scanf("%d",&b.id);

    printf("\n enter book name");

    scanf("%s",&b.name);

    printf("\n enter book price");

    scanf("%f",&b.price);

    printf("\n id:%d\tname:%s\tprice:%f",b.id,b.name,b.price);

    getch();

}

=============================================================================

2.) Question 2

#include <stdio.h>

#include <conio.h>

#include <string.h>

struct student

{

char name[20];

int roll;

int marks;

};

void main ()

{

  struct student s[5];

  int i,h,x;

  clrscr ();

  for (i=0;i<5;i++)

  {

  printf ("Enter the contents of %d student:\n",i+1);

  printf ("Name:");

  gets(s[i].name);

  printf ("Roll:");

  scanf ("%d",&s[i].roll);

  printf ("Marks:");

  scanf ("%d",&s[i].marks);

  fflush(stdin);

  }

  h=s[0].marks;

  for (i=1;i<5;i++)

  {

    if (s[i].marks>h)

     h=s[i].marks;

    x=i;

  }

    printf ("The contents of student having marks is:\n",x);

    printf ("Name: %s\nRoll: %d\nMarks: %d\n",s[x].name,s[x].roll,s[x].marks);

  getch ();

}

=======================================================================================

3.) Question 3

#include <stdio.h>

#include <conio.h>

#include <string.h>

struct data { int day; int month; int year;};

struct employee

{

char name [10];

data dob;

int id;

};

void main ()

{

struct employee e;

clrscr ();

printf ("Enter the content of employee:\n");

printf ("Name: ");

gets(e.name);

printf ("Dob as (day month year):\n");

scanf ("%d%d%d",&e.dob.day,&e.dob.month,&e.dob.year);

printf ("ID:\n");

scanf ("%d",&e.id);

printf ("Employee content is :\n");

printf ("Name:%s\nDOB:%d/%d/%d\nID:%d",e.name,e.dob.day,e.dob.month,e.dob.year,e.id);

getch ();

}

============================================================================

4.) Question 4

#include <stdio.h>

#include <conio.h>

#include <string.h>

struct complex

{

int r;int im;};

void display(struct complex ,struct complex);

void main ()

{

struct complex c1={1,2};

struct complex c2={3,4};

clrscr ();

display (c1,c2);

getch ();

}

void display (struct complex x,struct complex y)

{

struct complex c3;

c3.r=x.r+y.r;

c3.im=x.im+y.im;

printf ("Result is %d+%di",c3.r,c3.im);

getch ();

}

===========================================================================

5.) Question 5

#include<stdio.h>

#include<conio.h>

struct dist

{

    int feet;

    int inch;

};

struct dist sum(struct dist,struct dist);

struct dist diff(struct dist,struct dist);

void main()

{

    struct dist d1={21,10};

    struct dist d2={8,9};

    struct dist s,d;

    s=sum(d1,d2);

    d=diff(d1,d2);

    printf("\n Sum is %d feet %d inch",s.feet,s.inch);

    printf("\n Difference is %d feet %d inch",d.feet,d.inch);

    getch();

}

struct dist sum(struct dist d1,struct dist d2)

{

    struct dist d3;

    d3.inch=d1.inch+d2.inch;

    if(d3.inch>=12)

    {

        d3.feet=d1.feet+d2.feet+1;

        d3.inch=d3.inch-12;

    }

    else

        d3.feet=d1.feet+d2.feet;

    return(d3);

}

struct dist diff(struct dist d1,struct dist d2)

{

    struct dist d3;

    d3.inch=d1.inch-d2.inch;

    d3.feet=d1.feet-d2.feet;

    return(d3);

}