Hex Confusion

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Decipher Codefest'16 Following problem is a part of the Symmetric Cryptosystem called DES (S-boxes are modified slightly). You are given a 32-bit stream in hex, 0x0020 0100. Give the final output in hex, when the stream is passed through, first the following Expansion D-box, Fig.1 - Expansion D-box and then through the following array of S-boxes. Fig.2 - S-box 1 Fig.3 - S-box 2 Fig

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solution.cppC++17

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