Run ID: 129545

Main.cc: In function ‘int main()’:
Main.cc:5:11: warning: right operand of comma operator has no effect [-Wunused-value]
  cin>>a,b,c,d;
           ^
Main.cc:5:13: warning: right operand of comma operator has no effect [-Wunused-value]
  cin>>a,b,c,d;
             ^
Main.cc:5:14: warning: right operand of comma operator has no effect [-Wunused-value]
  cin>>a,b,c,d;
              ^
Main.cc:6:6: error: conflicting declaration ‘int e’
  int e=sqrt((a-b)*(a-b)+(c-d)*(c-d));
      ^
Main.cc:4:17: note: previous declaration as ‘double e’
  double a,b,c,d,e;
                 ^