Main.cc: In function 'int main()':
Main.cc:6:9: error: redeclaration of 'double c'
double c=a/b;
^
Main.cc:4:13: note: 'double c' previously declared here
double a,b,c;
^
Main.cc:8:2: error: expected ';' before 'return'
return 0;
^
Main.cc:4:13: warning: unused variable 'c' [-Wunused-variable]
double a,b,c;
^
Main.cc:5:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lf%lf",&a,&b);
^