check wheater enter number is positive , negetive or zero .

 #include<stdio.h>

#include<conio.h>

void main ()

{

         int a;

         clrscr ();

   printf("enter the value of a \n ");

   scanf("%d",&a);

   if (a > 0)

   printf("the no. is positive");

   else if(a<0)

   printf("the no. is negetive");

   else

   printf("it is zero");

   getch ();

}

output 1 : 

enter the value of a

 45

the no. is positive

[Process completed (code 10) - press Enter]

Output 2:

enter the value of a

 0

it is zero

[Process completed (code 10) - press Enter]

Output 3:

enter the value of a

 -3

the no. is negetive

[Process completed (code 10) - press Enter]