Compilare: main.cpp:11:39: warning: left shift count >= width of type [-Wshift-count-overflow] const long long FULL_BUCKET = (1LL << BUCKET_SIZE) - 1; ^~~~~~~~~~~ main.cpp: In member function 'char InParser::read_ch()': main.cpp:26:38: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, 4096, fin); ^