Question

Write a C++ program that has this FRACTION structure

struct

FRACTION{

int num;

int den;

};

That will keep track of numerator and denominator of a fraction.

using pointers

that is :

getFraction() function will now return a pointer too a struct.
multiply()function will now accept two struct via a pointer and return the result via a pointer.
add()function will now accept two struct via a pointer and return the result via a pointer.

Answer 1

#include <iostream>

using namespace std;

struct FRACTION{
   int num;
   int den;
};

struct FRACTION* getFraction(){
   struct FRACTION* val = new struct FRACTION[1];
   int temp;
   cout<<"Enter numerator: ";
   cin>>temp;
   val->num = temp;
   while(1){
      cout<<"Enter denominator: ";
      cin>>temp;
      if(temp != 0){
         break;
      }
   }
   val->den = temp;
   val;
}

struct FRACTION* multiply(struct FRACTION* val1, struct FRACTION* val2){
   struct FRACTION* val = new struct FRACTION[1];
   val->num = val1->num * val2->num;
   val->den = val1->den * val2->den;
   return val;
}

struct FRACTION* add(struct FRACTION* val1, struct FRACTION* val2){
   struct FRACTION* val = new struct FRACTION[1];
   val->num = val1->num + val2->num;
   val->den = val1->den + val2->den;
   return val;
}

int main() {
   struct FRACTION* val1 = getFraction();
   struct FRACTION* val2 = getFraction();
   struct FRACTION* val = add(val1,val2);
   cout<<"Add result: "<<endl;
   cout<<"numerator = "<<val->num<<endl;
   cout<<"denominator = "<<val->den<<endl;
   val = multiply(val1,val2);
   cout<<"Multiply result: "<<endl;
   cout<<"numerator = "<<val->num<<endl;
   cout<<"denominator = "<<val->den<<endl;
    return 0;
}

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