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int Is_equal( Bintree *t1 , Bintree *t2 )
{
int t=0;
if(NULL == t1 && NULL == t2)
{
t=1;
}
else
{
if(NULL !=t1 &&NULL != t2 )
{
if(t1->data == t2->data)
{
if(Is_equal(t1->lchild,t2->lchild))
{
t=Is_equal(t1->rchild,t2->rchild);
}
}
}
}
return t;
}