@bharat: +1
i have tried some test cases.. working finely.. @anyone pls verify??
On Mon, Sep 3, 2012 at 11:58 AM, bharat b <bagana.bharatku...@gmail.com>wrote:
> while doing in-order traversal, we have to check if(prev > current) -->
> then mark prev element for swapping in the first time violation..
> if it happens for the second time..then mark current element for swapping.
> swap both ..
>
> If we don't get the violation for the second time .. means both are
> side-by-side elements .. swap them ..
>
> Hope works .. If I miss any case .. correct me
> thanks,
>
>
> On Sun, Sep 2, 2012 at 7:45 PM, Rahul Kumar Patle <
> patlerahulku...@gmail.com> wrote:
>
>> @navin: can u explain ur algorithms in words pls..
>>
>> On Sun, Sep 2, 2012 at 5:53 PM, Navin Kumar <algorithm.i...@gmail.com>wrote:
>>
>>> void correctBST(struct node *root)
>>> {
>>> int flag =0;
>>> static struct node *temp1, *temp2, *temp3, *prev;
>>> static int found;
>>>
>>> if(found) return;
>>>
>>> if(root) {
>>> correctBST(root->left);
>>> if(!temp1 && prev && root->data < prev->data) {
>>> temp1 = prev;
>>> temp2 = root;
>>> swap(&(temp1->data), &(temp2->data));
>>> flag = 1;
>>> prev = temp1;
>>> }
>>> else if(!temp3 && prev && root->data < prev->data) {
>>> temp3 = root;
>>> swap(&(temp1->data), &(temp2->data));
>>> swap(&(temp1->data), &(temp3->data));
>>> found = 1;
>>> return;
>>> }
>>> if(!flag)
>>> prev = root;
>>> correctBST(root->right);
>>> }
>>> }
>>>
>>> On Sun, Sep 2, 2012 at 4:02 PM, Rahul Kumar Patle <
>>> patlerahulku...@gmail.com> wrote:
>>>
>>>> help to solve the following..
>>>> Question: Two of the nodes of a BST are swapped. Correct the BST (taken
>>>> from GeekforGeeks <http://www.geeksforgeeks.org/archives/23272> 2nd
>>>> online test 3rd question)
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Thanks and Regards:
>>>> Rahul Kumar
>>>> Patle<http://www.linkedin.com/profile/view?id=106245716&trk=tab_pro>
>>>> M.Tech, School of Information Technology
>>>> Indian Institute of Technology, Kharagpur-721302,
>>>> India<http://www.iitkgp.ac.in/>
>>>> Mobile No: +91-8798049298, +91-9424738542
>>>> Alternate Email: rahulkumarpa...@hotmail.com
>>>>
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>>>
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>>
>>
>>
>> --
>> Thanks and Regards:
>> Rahul Kumar
>> Patle<http://www.linkedin.com/profile/view?id=106245716&trk=tab_pro>
>> M.Tech, School of Information Technology
>> Indian Institute of Technology, Kharagpur-721302,
>> India<http://www.iitkgp.ac.in/>
>> Mobile No: +91-8798049298, +91-9424738542
>> Alternate Email: rahulkumarpa...@hotmail.com
>>
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>
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--
Thanks and Regards:
Rahul Kumar Patle<http://www.linkedin.com/profile/view?id=106245716&trk=tab_pro>
M.Tech, School of Information Technology
Indian Institute of Technology, Kharagpur-721302,
India<http://www.iitkgp.ac.in/>
Mobile No: +91-8798049298, +91-9424738542
Alternate Email: rahulkumarpa...@hotmail.com
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