C de printf(), scanf() ve if-else Örneği

//www.ethemsulan.com
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char *argv[])
{
    int k;
    double g;
    printf("bir gercel sayi gir: ");
    scanf("%lf",&g);
    k=(int)g;
    if(k>0) printf("%d sayisi pozitif\n",k);
    else if(k==0){printf("%d sayisi sifiridir\n",k);}
    else printf("%d sayisi negatiftir\n",k);
  system("PAUSE");	
  return 0;
}