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1) In Shannon-Fano coding, we cannot be sure about the codes generated. There may be two different codes for the same symbol depending on the way we build our tree.

2) Also, here we have no unique code i.e a code might be a prefix for another code. So in case of errors or loss during data transmission, we have to start from the beginning.

3) Shannon-Fano coding does not guarantee optimal codes.

Hence, Shannon-Fano coding is not very efficient Huffman coding is more efficient than Shannon-Fano coding.

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12y ago

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