Compilare: main.cpp: In function 'int main()': main.cpp:93:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v.size();i++) ~^~~~~~~~~ main.cpp: In function 'int putere(char)': main.cpp:26:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int tip(char)': main.cpp:36:1: warning: control reaches end of non-void function [-Wreturn-type] } ^