#include <stdio.h>
#include <stdlib.h>
struct calc
{
int val1;
int val2;
int sum,sub;
float multi;
};
void add(struct calc *cptr,int p,int q)
{
cptr->val1=p;
cptr->val2=q;
cptr->sum=(cptr->val1)+(cptr->val2);
printf("THE SUM OF %d and %d IS:\t %d",p,q,(cptr->sum));
}
void mul(struct calc *cptr,int p,int q)
{
cptr->val1=p;
cptr->val2=q;
float p1=(float)cptr->val1;
float p2=(float)cptr->val2;
float multi=p1*p2;
printf("THE PRODUCT OF %d and %d IS:\t %f",p,q,multi);
}
void sub(struct calc *cptr,int p,int q)
{
cptr->val1=p;
cptr->val2=q;
int sub=(cptr->val1)-(cptr->val2);
printf("THE SUBTRACTION OF %d and %d IS:\t %d",p,q,sub);
}
void main()
{
int ch,v1,v2;
struct calc c;
void add(struct calc*,int,int);
void mul(struct calc*,int,int);
void sub(struct calc*,int,int);
while(1)
{
printf("\n\nPLEASE SELECT ONE OF THE OPTIONS:\n");
printf("1.ADDITION\n");
printf("2.MULTIPLICATION\n");
printf("3.SUBTRACTION\n");
printf("4.EXIT\n\n");
scanf("%d",&ch);
switch(ch)
{
case 1:
printf("ADDITION:\t PLEASE ENTER THE TWO VALUES TO BE ADDED\n\t");
scanf("%d %d",&v1,&v2);
add(&c,v1,v2);
break;
case 2:
printf("MULTIPLICATION:\t PLEASE ENTER THE TWO VALUES TO BE MULTIPLIED\n\t");
scanf("%d %d",&v1,&v2);
mul(&c,v1,v2);
break;
case 3:
printf("SUBTRACTION:\t PLEASE ENTER THE TWO VALUES TO BE SUBTRACTED\n\t");
scanf("%d %d",&v1,&v2);
sub(&c,v1,v2);
break;
case 4:
exit(1);
default:
printf("PLEASE ENTER VALID VALUES ONLE (1 TO 4)\n\t");
}
}
}
