Compilare: main.cpp: In function 'int euler(int)': main.cpp:26:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:43:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<sol.size();i++)g<<sol[i]<<" "; ~^~~~~~~~~~~