Answer Posted / himaja

pointers can also be declared as void type.void pointers cant be dereferenced without explict type conversion,this is becoz being void the compiler cnt determine the size of object that pointer points to,though void vaariables declared is not allowed,thus void p displays error msg "size of p is unknown or 0" after compilation
#include<stdio.h>
int p;
float d;
char c;
void *pt=&p;
void main(void)
{
clrscr();
*(int*)pt=12;
printf("\n p=%d",p);
pt=&d; /*pt points to d*/
*(float*)pt=5.4;
printf("\n r=%f",d);
pt=&c; /*pt points to c*/
*(char*)pt=H;
printf("\n c=%c",c);


o/p:
P=12
R=5.4
C=H

using only #include and #include Write a program in C that will read an input from the user and print it back to the user if it is a palindrome. The string ends when it encounters a whitespace. The input string is at most 30 characters. Assume the string has no spaces and distinguish between and lowercase. So madam is a palindrome, but MadAm is not a palindrome. Use scanf and %s to read the string. Sample Test: Enter a string: madam madam is a palindrome. Enter a string: 09023 09023 is not a palindrome.

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