feat: generic linked list

src/linked-list.cpp

@@ -0,0 +1,16 @@
+#include "linked-list.hpp"
+
+template <typename T> int insertNode(LinkedList<T> *list, T data) {
+  LinkedList<T> *node = new LinkedList<T>;
+
+  node->data = data;
+
+  if (list == nullptr) {
+    node->next = list;
+    list = node;
+  } else {
+    list->next = node;
+  }
+
+  return 0;
+}

src/linked-list.hpp

@@ -0,0 +1,8 @@
+template <typename T>
+struct LinkedList {
+  T data;
+  struct LinkedList* next;
+};
+
+template<typename T>
+int insertNode(LinkedList<T> *, T);