How to check number is positive, negative or zero?

CODE

How to check number is positive, negative or zero?

int main()

{

    int a;

    printf("\n enter number:");

    scanf("%f",&a);

    if(a<0)

        printf("\n number is negative.");

    else if(a>0)

        printf("\n number is positive");

    else

        printf("\n number is zero");

}

Output:

enter number:

5

 number is positive

OR

enter number:

0

 number is zero

OR

enter number:

-45

 number is negative.