Borderou de evaluare (job #288301)

Compilare: user.cpp: In function 'int main()': user.cpp:81:53: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In constructor 'InputReader::InputReader(const char*)': user.cpp:16:39: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp: In member function 'void InputReader::advance()': user.cpp:38:41: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result]