[algogeeks] find nth node frm the last

[jagrati verma]

hw is it possible frm this code ???????????/




Node * findNToLastNode( Node *head, int N )
{
    int i = 0;
    Node *current, *behind;
    current = head;
    for( i = 0; i < N; i++ ) {
        if( current->next ) {
            current = current->next;
        } else {
            return NULL;                  // Length of the list is less than N
        }
    }

    behind = head;
    while( current->next ) {
        current = current->next;
        behind = behind->next;
    }

    return behind;
}

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