#include <stdio.h>
#include <stdlib.h>

// Adding fractions represented with structs

typedef struct
{
	int num;
	int den;
} fraction_t;

int main()
{
	fraction_t F;
	
	F.num=1; // initialize the fraction F to 1/2
	F.den=2;

	fraction_t* p; // pointer to a type fraction_t (which is a struct)
	
	// initialize the pointer

	p = &F;  // p points to F (or the memory address where F is stored)

	printf("Before: %d/%d \n", F.num, F.den);		
	
	p->num = 3; // change the fraction to 3/4
	p->den = 4;  

	printf("After:  %d/%d \n", F.num, F.den);		
	system("pause");
}