Compilare: main.cpp: In function 'int main()': main.cpp:68:48: warning: 'ans3' may be used uninitialized in this function [-Wmaybe-uninitialized] out << ans1 << ' ' << ans2 << ' ' << ans3 << '\n'; ^~~~ main.cpp:68:33: warning: 'ans2' may be used uninitialized in this function [-Wmaybe-uninitialized] out << ans1 << ' ' << ans2 << ' ' << ans3 << '\n'; ^~~