Compilare: user.cpp:23:37: warning: always_inline function might not be inlinable [-Wattributes] __attribute__((always_inline)) void put_int(unsigned int x) ^~~~~~~ user.cpp:3:39: warning: always_inline function might not be inlinable [-Wattributes] __attribute__((always_inline)) size_t get_int() ^~~~~~~ user.cpp: In function ‘size_t get_int()’: user.cpp:9:42: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] inBuffer[p] > 0x2F || ++p != 0x20000 || (fread(inBuffer, 0x1, 0x20000, stdin), p = 0x0); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ user.cpp:15:24: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] ++p != 0x20000 || (fread(inBuffer, 0x1, 0x20000, stdin), p = 0x0); ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:84:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bfs.in", "r", stdin); ^ user.cpp:85:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bfs.out", "w", stdout); ^