Program: Find the L.C.D of two number

#include<stdio.h>

#include<conio.h>

void main()

{

int a,b,i,j,flag=0,t;

printf("Enter two number:-");

scanf("%d%d",&a,&b);

if(a<0)

a=-a;

if(b<0)

b=-b;

if(a>b)

{

t=a;

a=b;

b=t;

}

if((a==0)||(b==0))

printf("is not possible:-\n");

else

{

for(i=1;i<=a;i++)

{

for(j=1;j<=b;j++)

{

if((a*j)==(b*i))

{

flag=1;

break;

}

}

if(flag==1)

break;

}                                                                                             

printf("The LCD is=%d",b*i);                                               

}                                                                                          

getch();                                                                                    

}