Compilare: main.cpp:69:0: warning: ignoring #pragma warning [-Wunknown-pragmas] #pragma warning(disable : 4996) main.cpp: In member function 'void InputReader::advance()': main.cpp:61:41: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buffer, SIZE, 1, input_file); ^ main.cpp: In constructor 'InputReader::InputReader(const char*)': main.cpp:13:39: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buffer, SIZE, 1, input_file); ^