20.18. Write a program that reads any integer and display positive, negative or zero.

#include<stdio.h>
#include<conio.h> 

#include<stdlib.h>
void main ()

{
char *n;

n=(int*)malloc(sizeof(int));

clrscr();
printf("Enter any integer number=");

scanf("%d", a);

if(*n>0)

printf("Positive");

else if(*n<0);

printf("Negative");

else

printf("Zero");

getch ();
}