n sorry i have wriiten it in c++ not c..
On Thu, Jul 14, 2011 at 1:44 AM, Anika Jain <anika.jai...@gmail.com> wrote:
> by using swap function is pointer to a pointer used then??
>
>
> On Thu, Jul 14, 2011 at 1:36 AM, Piyush Kapoor <pkjee2...@gmail.com>wrote:
>
>> u need a pointer to a pointer to swap the pointers...
>>
>>
>> On Thu, Jul 14, 2011 at 1:21 AM, Anika Jain <anika.jai...@gmail.com>wrote:
>>
>>> can some body tell me that:
>>>
>>> void swap(node *p,node *q)
>>> {
>>> node *t;
>>> t=p;
>>> p=q;
>>> q=t;
>>> }
>>>
>>> void mirror(node *p)
>>> {
>>> if (p==NULL)
>>> return;
>>>
>>> else
>>> { mirror(p->r);
>>> mirror(p->l);
>>> swap(p->r,p->l);
>>> }
>>> }
>>>
>>> in this the swapping is occuring but if i do :
>>>
>>> void mirror(node *p)
>>> {
>>> if (p==NULL)
>>> return;
>>>
>>> else
>>> { mirror(p->r);
>>> mirror(p->l);
>>> node *t;
>>> t=p->r;
>>> p->r=p->l;
>>> p->l=t;
>>> }
>>> }
>>>
>>>
>>> here it is not getting done .. why??
>>>
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>>
>>
>>
>> --
>> *Regards,*
>> *Piyush Kapoor,*
>> *CSE-IT-BHU*
>>
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>
>
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