run_length_encoding.h

#ifndef CPP_ALGORITHM_RUN_LENGTH_ENCODING_H
#define CPP_ALGORITHM_RUN_LENGTH_ENCODING_H

#include <string>

namespace RunLengthEncoding
{
    /**
     * \brief Run-length encoding is a form of data compression,
     * where runs are replaced by just one data value and count.
     * \param str raw string
     * \return compressed string
     */
    auto RunLengthEncoding(const std::string& str) -> std::string;

    /**
     * \brief Run-length decoding is the reverse of run-length encoding.
     * \param str compressed string
     * \return raw string
     */
    auto RunLengthDecoding(const std::string& str) -> std::string;
}

#endif