Why this is Happening??

Question

Can you explain this :
int main()
{
int a,b,c;
cout<< "Enter two nos :"<<endl;
cout<< "Enter first no. : ";
cin>>a; // Entered 18
cout<< "Enter sec. no. : ";
cin>>b; //Entered 13
c=a*b; //c=18*13 == 234
while(a!=b) //(18!=13) ==True
{
if(a>b) //(18>13) == True
a=a-b; // a = 18-13 == 5
else //Skipped since (a>b)
b=b-a; //Skipped
}
cout<< "HCF = " << a<<endl; //HCF = 5
cout<< "LCM = " << c/a<<endl; // LCM = 234/5 == 46
return 0;
}
But the output is HCF = 1
LCM = 234
WHY??

Answer 1

Because you are using while loop which will iterate untill a and b are equal (it will stop when a and b finally becomes equal i.e 1).

Use if instead of while.

Hope this helps☺️☺️.

Answer 2

int main(1)