Compilare: user.cpp: In function ‘unsigned int hashFind(unsigned int, unsigned int)’: user.cpp:7:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define NIL -1 ^ user.cpp:33:49: note: in expansion of macro ‘NIL’ for (unsigned i = h[hashFunction(r)][k]; i != NIL; i = l[i].next) { ^ user.cpp: In function ‘char get(FILE*)’: user.cpp:46:32: 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, BUFFSIZE, f); ^