Getting wrong output

#1

i tried the code myself and getting wrong output can you please check my code and please tell me what mistake i am doing in my code

#2

Hey @shivamgoel150

ll mid(node*head)
{
    if(head==NULL)return -1;//addec corner case
    node*fast=head;
    node*slow=head;

    ll cnt=0;
    while(fast!=NULL)
    {
        if(cnt<2) //<2 here
        {
            fast=fast->next;
            cnt++;
        }

        else
        {
            slow=slow->next;
            fast=fast->next;
            cnt=1;
        }
    }

    return slow->data;
}

or easier way

ll mid(node*head)
{   
    if(head==NULL)return -1;//added corner case
    node*fast=head->next;
    node*slow=head;

    ll cnt=0;
    while(fast!=NULL&&fast->next!=NULL)
    {
           slow=slow->next;
            fast=fast->next->next;
        }

    return slow->data;
}
#3

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