trie

// creates a new node
node := NewNode()

// adds words
node.Insert("nikola")
node.Insert("tesla")

// check size and capacity
fmt.Println(node.Size())     // 2 words
fmt.Println(node.Capacity()) // 12 nodes

// finds words
fmt.Println(node.Find("thomas")) // false
fmt.Println(node.Find("edison")) // false
fmt.Println(node.Find("nikola")) // true

// remove a word, and check it is gone
node.Remove("tesla")
fmt.Println(node.Find("tesla")) // false

// size and capacity have changed
fmt.Println(node.Size())     // 1 word left
fmt.Println(node.Capacity()) // 12 nodes remaining

Output:
2
12
false
false
true
false
1
12