运行 ID: 989

Main.cc: In function ‘int main()’:
Main.cc:6:19: error: ‘b’ was not declared in this scope
   double r=(total-b-g)/4
                   ^
Main.cc:4:10: warning: unused variable ‘d’ [-Wunused-variable]
   double d=total-9.4*5;
          ^
Main.cc:6:10: warning: unused variable ‘r’ [-Wunused-variable]
   double r=(total-b-g)/4
          ^