How to write a C Program To Find LCM and HCF Of Two Number Using Function in C Programming Language ?
Solution For C Program :
/*C Program To Find LCM and HCF Of Two Number Using Function.*/
#include<stdio.h>
#include<conio.h>
int lcm(int a,int b);
int hcf(int a,int b);
void main()
{
int a,b,ch,z;
char choice='y';
while(choice=='y' || choice=='Y')
{
printf("1.LCM");
printf("\n2.HCF");
printf("\nEnter your choice:=");
scanf("%d",&ch);
if(ch==1 || ch==2)
{
printf("\nEnter first number:=");
scanf("%d",&a);
printf("\nEnter second number:=");
scanf("%d",&b);
}
switch(ch)
{
case 1:z=hcf(a,b);
printf("LCM:=%d",z);
break;
case 2:
z=lcm(a,b);
printf("HCF:=%d",z);
break;
default:
printf("Wrong choice");
}
fflush(stdin);
printf("\nDO YOU WANT TO CONTINUE Y/N:=");
scanf("%c",&choice);
}
}
int lcm(int a,int b)
{
int lcm,c;
while(a!=b)
{
if(a>b)
{
c=a-b;
a=c;
lcm=c;
}
if(b>a)
{
c=b-a;
b=c;
lcm=c;
}
}
return(lcm);
}
int hcf(int a,int b)
{
int hcf,c,a1,b1;
a1=a;
b1=b;
c=lcm(a,b);
hcf=(b1*a1)/c;
return(hcf);
}
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LCM