Compilare: main.cpp: In function 'int main()': main.cpp:49:5: warning: 'd' may be used uninitialized in this function [-Wmaybe-uninitialized] if (c&&d) ^~ main.cpp:50:16: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<c<<" "<<d; ^~~ main.cpp:42:5: warning: 'b' may be used uninitialized in this function [-Wmaybe-uninitialized] if (a&&b) ^~ main.cpp:43:16: warning: 'a' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<a<<" "<<b; ^~~