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Variable Length Codes assign shorter binary codes to frequently occurring symbols and longer codes to rare symbols.
This reduces the average number of bits per symbol, improving data compression efficiency.
They are widely used in data communication and source coding to save bandwidth and storage.
Popular examples include Huffman coding and Shannon–Fano coding.
The key idea is to ensure unique decodability so the receiver can decode without confusion.
Overall, Variable Length Codes play a vital role in efficient and reliable digital communication.
