// tuzc: compress stdin with tinyuz (4 KB dict) to stdout; verifies by round-trip.
#include <cstdio>
#include <vector>
#include <io.h>
#include <fcntl.h>
#include "tinyuz/decompress/tuz_dec.h"
extern "C" size_t tuz_compress_mem(const unsigned char*, size_t, unsigned char*, size_t, size_t);
extern "C" size_t tuz_max_compressed_size(size_t);
int main() {
    _setmode(_fileno(stdin), _O_BINARY);
    _setmode(_fileno(stdout), _O_BINARY);
    std::vector<unsigned char> in;
    int c;
    while ((c = getchar()) != EOF) in.push_back((unsigned char)c);
    if (in.empty()) return 2;
    std::vector<unsigned char> out(tuz_max_compressed_size(in.size()));
    size_t n = tuz_compress_mem(in.data(), in.size(), out.data(), out.size(), 4096);
    if (n == 0) return 3;
    std::vector<unsigned char> back(in.size());
    tuz_size_t back_size = (tuz_size_t)back.size();
    if (tuz_decompress_mem(out.data(), n, back.data(), &back_size) != tuz_STREAM_END
        || back_size != in.size() || back != in) return 4;
    fwrite(out.data(), 1, n, stdout);
    return 0;
}