Compilare: main.cpp: In member function 'GOOD::BigInt GOOD::BigInt::operator-(const GOOD::BigInt&) const': main.cpp:103:15: warning: unused variable 'rest' [-Wunused-variable] int rest(0), i; ^~~~ main.cpp: In member function 'GOOD::BigInt GOOD::BigInt::operator-(int) const': main.cpp:133:15: warning: unused variable 'rest' [-Wunused-variable] int rest(0), i; ^~~~ main.cpp: In function 'int GOOD::main()': main.cpp:182:5: warning: no return statement in function returning non-void [-Wreturn-type] } ^