Single Link list
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#include <iostream> using namespace std; //Declare Node struct Node{ int num; Node *next; }; //Declare starting (Head) node struct Node *head=NULL; //Insert node at start void insertNode(int n){ struct Node *newNode=new Node; newNode->num=n; newNode->next=head; head=newNode; } //Traverse/ display all nodes (print items) void display(){ if(head==NULL){ cout<<"List is empty!"<<endl; return; } struct Node *temp=head; while(temp!=NULL){ cout<<temp->num<<" "; temp=temp->next; } cout<<endl; } //delete node from start void deleteItem(){ if(head==NULL){ cout<<"List is empty!"<<endl; return; } cout<<head->num<<" is removed."<<endl; head=head->next; } int main(){ display(); insertNode(5); insertNode(7); display(); deleteItem(); deleteItem(); deleteItem(); deleteItem(); deleteItem(); deleteItem(); display(); return 0; } |
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