View Compilation Error

0_0_28585936_4574.cpp:1:1: error: stray '##' in program
 ##include<bits/stdc++.h>
 ^
0_0_28585936_4574.cpp:1:3: error: 'include' does not name a type
 ##include<bits/stdc++.h>
   ^
0_0_28585936_4574.cpp: In function 'int main()':
0_0_28585936_4574.cpp:5:8: error: 'cin' was not declared in this scope
  while(cin>>a){
        ^
0_0_28585936_4574.cpp:7:3: error: 'cout' was not declared in this scope
   cout<<fixed<<setprecision(2)<<fabs(a)<<endl;
   ^
0_0_28585936_4574.cpp:7:9: error: 'fixed' was not declared in this scope
   cout<<fixed<<setprecision(2)<<fabs(a)<<endl;
         ^
0_0_28585936_4574.cpp:7:30: error: 'setprecision' was not declared in this scope
   cout<<fixed<<setprecision(2)<<fabs(a)<<endl;
                              ^
0_0_28585936_4574.cpp:7:39: error: 'fabs' was not declared in this scope
   cout<<fixed<<setprecision(2)<<fabs(a)<<endl;
                                       ^
0_0_28585936_4574.cpp:7:42: error: 'endl' was not declared in this scope
   cout<<fixed<<setprecision(2)<<fabs(a)<<endl;
                                          ^