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added simple LinkedList.cpp

Author: joslangarica

data-structures/linkedList.cpp

@@ -0,0 +1,56 @@
+#include <iostream>
+
+using namespace std;
+
+class Node {
+public:
+    int data;
+    Node* next;
+
+    Node(int data) {
+        this->data = data;
+        this->next = NULL;
+    }
+};
+
+class LinkedList {
+public:
+    Node* head;
+
+    LinkedList() {
+        this->head = NULL;
+    }
+
+    void addNode(int data) {
+        Node* newNode = new Node(data);
+        if (this->head == NULL) {
+            this->head = newNode;
+            return;
+        }
+        Node* currentNode = this->head;
+        while (currentNode->next != NULL) {
+            currentNode = currentNode->next;
+        }
+        currentNode->next = newNode;
+    }
+
+    void printList() {
+        Node* currentNode = this->head;
+        while (currentNode != NULL) {
+            cout << currentNode->data << " ";
+            currentNode = currentNode->next;
+        }
+        cout << endl;
+    }
+};
+
+int main() {
+    LinkedList list;
+    list.addNode(1);
+    list.addNode(2);
+    list.addNode(3);
+    list.addNode(4);
+    list.addNode(5);
+    list.printList();
+    return 0;
+}