Compilare: user.cpp: In function ‘int main()’: user.cpp:204:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (p + q < versiuni.size() && ~~~~~~^~~~~~~~~~~~~~~~~ user.cpp: In member function ‘char InputReader::nextpos()’: user.cpp:146:38: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, Size, 1, fin); ^