Compilare: main.cpp: In function 'int main()': main.cpp:56:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<w.size();j++) ~^~~~~~~~~ main.cpp:62:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(w[j]==' '||j+1==w.size()) ~~~^~~~~~~~~~ main.cpp: In function 'void prelucrare()': main.cpp:30:13: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized] int poz; ^~~ main.cpp:13:13: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized] int poz; ^~~