Compilare: user.cpp: In function ‘int bin(int)’: user.cpp:14:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:44:38: warning: ‘a3’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<cnt<<" "<<a1<<" "<<a2<<" "<<a3<<" "<<v[p]-sum<<'\n'; ^ user.cpp:44:29: warning: ‘a2’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<cnt<<" "<<a1<<" "<<a2<<" "<<a3<<" "<<v[p]-sum<<'\n'; ^ user.cpp:44:20: warning: ‘a1’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<cnt<<" "<<a1<<" "<<a2<<" "<<a3<<" "<<v[p]-sum<<'\n'; ^