Compilare: main.cpp: In function 'int main()': main.cpp:23:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<sir.size();i++) ~^~~~~~~~~~~ main.cpp:29:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=cuv.size()-1;i<sir.size();i++) ~^~~~~~~~~~~