Main.cc: In function 'int main()':
Main.cc:11:13: error: expected '}' at end of input
return 0;
^
Main.cc:9:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lf%lf%lf",&a,&b,&c);
^