Compilare: main.cpp: In function 'void ad_cuv(char*)': main.cpp:16:15: 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:34:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<strlen(w);i++) ~^~~~~~~~~~ main.cpp:37:6: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(q->pref_cuv==0&&q!=rad) ^~ main.cpp:39:3: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' --aux->pref_cuv; ^~ main.cpp:33:20: warning: unused variable 'ok' [-Wunused-variable] nod *aux=rad; int ok=0; ^~ main.cpp: In function 'void print_nrcuv(char*)': main.cpp:46:11: 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:50:23: 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:56:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<strlen(w)&&aux->fii[w[i]-'a']!=NULL;i++) ~^~~~~~~~~~