Compilare: main.cpp: In function 'int main()': main.cpp:69:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 69 | for(int i=0;i<lcas.size();i++) | ~^~~~~~~~~~~~ main.cpp:72:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 72 | if(i!=lcas.size()-1) fout<<' '; | ~^~~~~~~~~~~~~~~