add even or odd linkedlist

Author: akgmage

Linked List/linked_list_even_or_odd.go

@@ -0,0 +1,25 @@
+package main
+import "fmt"
+
+// has two fields [data] of type integer and [next] of type *node (holds the memory address of next node)
+type node struct {
+	data int
+	next *node
+}
+//has three fields length, head and tail node
+type LinkedList struct {
+	length int
+	head   *node
+	tail   *node
+}
+
+func (ll *LinkedList) IsLengthEven() bool {
+	current := ll.head
+	for current != nil && current.next != nil {
+		current = current.next.next
+	}
+	if current != nil {
+		return false
+	}
+	return true
+}