Check whether the number is positive or negative

#include <stdio.h>

int main()
{
    double n;
    printf("Enter the number :");
    scanf("%lf",&n);
    
    if (n==0)
        printf("Entered number is zero");
    else if(n<0)
        printf("Entered number is a negative number");
    else
        printf("Entered number is a positive number");
    
    return 0;
}