Compilare: main.cpp:15:18: warning: overflow in implicit constant conversion [-Woverflow] const i128 inf = 1e30; ^~~~ main.cpp: In member function 'void InputReader::advance()': main.cpp:114:38: 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:92:37: 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); ^