Manipulating BST Tree

The Morse Code is an information transmission system based on intermittent series of sounds, lights, dashes or clicks representing letters, numbers, and punctuation marks 1 . Developed by Samuel Morse in 1835 to be applied in the telegraph is still used today in both radio amateur and guidance systems for ships and aircraft. An example is the non-directional beacon system( Non-Directional Beacon ). Compared with other modern communication systems, the Morse code retains the advantage of the ease of decoding and encoding by humans, an example of this is the popular SOS sequence: ...___...