Huffman decoder is used for data compression.
How the Decoder Works (Educational Steps)
- The Tree Search: In a Huffman tree, we start at the Root.
- The Binary Path:
- If the bit is 0, we move to the Left child.
- If the bit is 1, we move to the Right child.
- The Leaf Node: When we reach a "Leaf" (a node with a letter), we record that letter and jump back to the Root to start the next letter.
- Efficiency: Because no code is a prefix of another (Prefix Property), the decoder always knows exactly when a letter ends.
Example for your Blog Post:
- Map:
A:0, B:10, C:110, D:111 - Encoded String:
010110111 - Decoding Process:
0→ A10→ B110→ C111→ D
- Result: ABCD
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