Run id: 134467

Main.cc: In function 'int main()':
Main.cc:5:20: error: 'printf' was not declared in this scope
   printf("%.2lf",PI);
                    ^
Main.cc:3:7: warning: unused variable 'a' [-Wunused-variable]
   int a,b,c,d;
       ^
Main.cc:3:9: warning: unused variable 'b' [-Wunused-variable]
   int a,b,c,d;
         ^
Main.cc:3:11: warning: unused variable 'c' [-Wunused-variable]
   int a,b,c,d;
           ^
Main.cc:3:13: warning: unused variable 'd' [-Wunused-variable]
   int a,b,c,d;
             ^