Question

Structures Homework 1. Write code to accomplish each of the following: a) Using t ypedef, declare a structure, Automobile, with the following members: mode1 - string of 25 characters maximum year - integer mpg - integer b) Declare variable car to be of type Automobile. c) Assign the information below to the appropriate fields of variable car: 2012 Infiniti gets 25 mpg. d) Declare an array, vehicle, of 500 Automobiles. e) Assign variable car to the 5th element of the array. f) Output the Automobile information located in the 5h array location. Show the output ) Declare variable p to be a pointer to an Automobile structure. h) Assign to variable p the address of the 5h array location. i) Using variable p, output the Automobile information located in the 5h array location. Show the output. j) Declare variable q to be a pointer to an Automobile structure. k) Assign to variable q the address of the first array location. I) Using variable q, output the Aut omobi le information located in the 5" array location. Show the output.

in C

Answer 1

/*Sample C program that set the values for the questions from a to l.
*/
#include<stdio.h>
#include<conio.h>
#include<string>
//a) Automobile strcuture
typedef struct
{
   char model[25];
   int year;
   int mpg;
}Automobile;

int main()
{
   //b)declare car variable of Automobile
   Automobile car;
  
   //c)Assign values
   strcpy(car.model, "Infinity");
   car.year=2012;
   car.mpg=25;

   //d) declare array vehicle of 500 Automobile
   Automobile vehicle[500];

   //e)assign car variable to 5 the element in vehicle
   vehicle[4]=car;

   //f) output vechicle at 5 the location
   printf("Model : %s\n",vehicle[4].model);
   printf("year : %d\n",vehicle[4].year);
   printf("Mpg : %d\n",vehicle[4].mpg);

   //g) Declare pointer p of the 5the array location
   Automobile *p;

   //h) assign 5th element to p
   p=&vehicle[4];

   //i)Output values in pointer, p
   printf("Model : %s\n",p->model);
   printf("year : %d\n",p->year);
   printf("Mpg : %d\n",p->mpg);

   //j) Declare pointer p of the 5the array location
   Automobile *q;

   //k) Assigh to variabel,q the address of fifth array location
   /*
   Note : Since at first location is not assigned any values of vehicle array,
   we cannot print the values of the pointer,q in the l) question part
   That is why we set 5th location address to the q pointer.
   */
   q=&vehicle[4];

   //l) Output the values at 5th location
   printf("Model : %s\n",q->model);
   printf("year : %d\n",q->year);
   printf("Mpg : %d\n",q->mpg);

   getch();
   return 0;
}