added files

data_structures/linked_lists/linked_list_implementation.cpp

@@ -0,0 +1,58 @@
+#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(10);
+    insertNode(20);
+    insertNode(30);
+    insertNode(40);
+    insertNode(50);
+    display();
+    deleteItem(); deleteItem(); deleteItem(); deleteItem(); deleteItem();
+    deleteItem();
+    display();
+    return 0;
+}