Arithmetic operations of two double numbers

#include stdio.h

int main()

{
 double  one,two;
 double  *po, *pt;
 po=&one;
 pt=&two;
 scanf("%lf%lf", &one,&two);
 printf("\nsum : %lf \ndiff : %lf \npro : %lf \nquo : %lf",
   *po+*pt,*po-*pt,*po**pt,*po/(*pt));
 getch();

}

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