Eroare de compilare: user.cpp: In function ‘void parse1(const string&, int, int, int&, int&)’: user.cpp:9:31: warning: variable ‘minus’ set but not used [-Wunused-but-set-variable] bool x = false, plus = true, minus = false; ^ user.cpp: In function ‘void parse2(const string&, int, int, int&, int&)’: user.cpp:94:31: warning: variable ‘minus’ set but not used [-Wunused-but-set-variable] bool x = false, plus = true, minus = false; ^ user.cpp: In function ‘void solve(const string&, const string&)’: user.cpp:211:36: error: ‘setprecision’ was not declared in this scope out << fixed << setprecision( 5 ) << static_cast< double >( n ) / x << '\n'; ^