Compilare: main.cpp: In function 'void ad_cuv(char*)': main.cpp:17:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<strlen(w);i++) ~^~~~~~~~~~ main.cpp: In function 'void delete_cuv(char*)': main.cpp:36:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<strlen(w);i++) ~^~~~~~~~~~ main.cpp: In function 'void print_nrcuv(char*)': main.cpp:48:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<strlen(w)&&aux->fii[w[i]-'a']!=NULL;i++) ~^~~~~~~~~~ main.cpp:52:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] g<<aux->nr_cuvinte*(i==strlen(w))<<'\n'; ~^~~~~~~~~~~ main.cpp: In function 'void prefix_maxim(char*)': main.cpp:58:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<strlen(w)&&aux->fii[w[i]-'a']!=NULL;i++) ~^~~~~~~~~~ main.cpp: In function 'void delete_cuv(char*)': main.cpp:39:12: warning: 'q' may be used uninitialized in this function [-Wmaybe-uninitialized] delete(q); ^