Compilare: user.cpp: In function ‘int main()’: user.cpp:57:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<ans.size()-1;i++) g<<ans[i]<<' '; ^ user.cpp:17:15: warning: unused variable ‘nod’ [-Wunused-variable] int x,y,i,nod,urm; ^ user.cpp:17:19: warning: unused variable ‘urm’ [-Wunused-variable] int x,y,i,nod,urm; ^