Compilare: main.cpp: In function 'std::vector<int> strToInt(std::__cxx11::string)': main.cpp:17:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<s.size();i++) ~^~~~~~~~~ main.cpp: In function 'int main()': main.cpp:67:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<in.size();j++) ~^~~~~~~~~~