Motorola Interview Question for Software Engineer / Developers






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0
of 0 vote

use recursion to reverse the list..

reverse(node n)
{
if(n->next==null)
return n;
n1 = reverse (n->next);
n1->next = n;
return n;
}

- srinivas.naidu October 29, 2009 | Flag Reply
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0
of 0 votes

This wont work! It will reverse the list, but you dont return the head of the list.

- Vikram October 30, 2009 | Flag
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0
of 0 vote

Here is the recursive code in Java. Enjoy people

node recrev ()
{
if (this.next==null)
return this;
else
{node tnext=this.next;
node newhead=tnext.recrev();
tnext.next=this;
return newhead;
}
}
node reverse(){
node newhead=recrev();
this.next=null;
return newhead;

}

- mrvishalg@rediffmail.com January 18, 2010 | Flag Reply
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0
of 0 vote

reverse(list* l)
{
a = l->next;
l->next = null;
while (a!=null)
{
b = a->next;
a->next = l;
l = a;
a = b;
}
return l;
}

- Divya February 28, 2011 | Flag Reply
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0
of 0 vote

Tested and working code:

Node MakeSingleLinkedListReverse(Node currentNode)
{
    Node previousNode = null;
    Node nextNode = null;
           
    while (currentNode != null)
    {
        nextNode = currentNode.NextNode;
        currentNode.NextNode = previousNode;

        previousNode = currentNode;
        currentNode = nextNode;
    }

    return previousNode;
}

- Srigopal Chitrapu April 28, 2014 | Flag Reply


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