Not able to understand the error

#1

#include
using namespace std;
class node{
public:
int data;
node* next;
};
void insert(node** head,int data){
if(head==NULL){
head=new node(data);
return;
}
node* tail=head;
while(tail->next !=NULL){
tail=tail->next;
tail->next=new node(data);
return;
}
}
node* reverse(node* head,int k){
node* current=head;
node* next=NULL;
node* prev=NULL;
int count=0;
while(current!=NULL &&count<k){
next=current->next;
current->next=prev;
prev=current;
current=next;
count++;
}
if(next!=NULL){
head->next=reverse(head,k);
}
return prev;
}
void print(node* head){
node* temp=head;
while(temp->next!=NULL){
cout<<temp<<" ";
temp=temp->next;
}return;
}
int main() {
int n,k;
cin>>n>>k;
node* head=NULL;
for(int f=1;f<=n;f++){
int data;
cin>>data;
insert(&head,data);
}
head=reverse(head,k);
print(head);
return 0;
}

#2

@toshitvarshney11 hey do k=k%length of linked list in starting,rets your logic is correct.

#3

i think i having problem in taking input as a linked list please help me with that

#4

@toshitvarshney11 hey check out this code for input of linked list:

1 Like
#5

thanks sir it worked

#6

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