Compilare: main.cpp: In function 'int main()': main.cpp:29:21: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 29 | if (C.size()!=m+1) fout<<-1<<'\n'; | ~~~~~~~~^~~~~ main.cpp:32:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | for (i=0;i<C.size()-1;i++) fout<<C[i]<<' '; | ~^~~~~~~~~~~