Question

1. Write a program which does the following: Declare and initialize three pointers. One points to an integer, one points to a float and one points to a character variable Ask the user to enter appropriate values for these variables. Output the values to the screen by accessing the variables directly and then by using pointer references. Print the address of each variable. Modify the variables by performing any arithmetic operation only using pointer refer- ences Display the changes and the addresses again using pointer references only.

Please code in c

Answer 1

#include<stdio.h>
int main(){
int i;
float f;
char c;

int *iPtr = &i;
char *cPtr=&c;
float *fPtr=&f;
printf("Enter character: ");
scanf("%c",&c);
printf("Enter integer: ");
scanf("%d",&i);

printf("Enter decimal: ");
scanf("%f",&f);
printf("Printing Directly\n");
printf("%d\n",i);
printf("%f\n",f);
printf("%c\n",c);
printf("Printing using pointers\n");
printf("%d\n",*iPtr);
printf("%f\n",*fPtr);
printf("%c\n",*cPtr);

printf("Address of variables\n");
printf("%u\n",iPtr);
printf("%u\n",fPtr);
printf("%u\n",cPtr);

*iPtr=*iPtr+10;
*cPtr=*cPtr+5;
*fPtr=*fPtr+5.5;
printf("Printing after changing \n");
printf("%d\n",*iPtr);
printf("%f\n",*fPtr);
printf("%c\n",*cPtr);

printf("Address of variables\n");
printf("%u\n",iPtr);
printf("%u\n",fPtr);
printf("%u\n",cPtr);

}

Enter character: A Enter integer: 10 Enter decimal: 12.5 Printing Directly 12.500000 Printing using pointers 12.500000 Address of variables 3194854736 3194854740 3194854735 Printing after changing 18.000000 Address of variables 3194854736 3194854740 3194854735 ... Program finished with exit code o Press ENTER to exit console- Bi

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