Place your txt file which has to be compressed in the code directory. For Encoding, Compile encode.cpp code - g++ encode.cpp Run the code - ./a.out <input_filename> <output_filename> where input file will be compressed and encoded into the output file. For Decoding, Compile decode.cpp code - g++ decode.cpp Run the code - ./a.out <input_filename> <output_filename> where input file will be uncompressed and decoded into the output file.