/in/foo.cc:1:1: error: 'includeincludeusingnamespacestd' does not name a type
    1 | includeincludeusingnamespacestd;intmain(){doubleh,r;cin>>h>>r;doublepi=3.1415926;doublev=pi*r*r*h;doublen=20*1000/v;cout
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/in/foo.cc:1:33: error: ISO C++ forbids declaration of 'intmain' with no type [-fpermissive]
    1 | includeincludeusingnamespacestd;intmain(){doubleh,r;cin>>h>>r;doublepi=3.1415926;doublev=pi*r*r*h;doublen=20*1000/v;cout
      |                                 ^~~~~~~
/in/foo.cc: In function 'int intmain()':
/in/foo.cc:1:43: error: 'doubleh' was not declared in this scope; did you mean 'double'?
    1 | includeincludeusingnamespacestd;intmain(){doubleh,r;cin>>h>>r;doublepi=3.1415926;doublev=pi*r*r*h;doublen=20*1000/v;cout
      |                                           ^~~~~~~
      |                                           double
/in/foo.cc:1:51: error: 'r' was not declared in this scope
    1 | includeincludeusingnamespacestd;intmain(){doubleh,r;cin>>h>>r;doublepi=3.1415926;doublev=pi*r*r*h;doublen=20*1000/v;cout
      |                                                   ^
/in/foo.cc:1:53: error: 'cin' was not declared in this scope
    1 | includeincludeusingnamespacestd;intmain(){doubleh,r;cin>>h>>r;doublepi=3.1415926;doublev=pi*r*r*h;doublen=20*1000/v;cout
      |                                                     ^~~
/in/foo.cc:1:58: error: 'h' was not declared in this scope
    1 | includeincludeusingnamespacestd;intmain(){doubleh,r;cin>>h>>r;doublepi=3.1415926;doublev=pi*r*r*h;doublen=20*1000/v;cout
      |                                                          ^
/in/foo.cc:1:63: error: 'doublepi' was not declared in this scope; did you mean 'double'?
    1 | includeincludeusingnamespacestd;intmain(){doubleh,r;cin>>h>>r;doublepi=3.1415926;doublev=pi*r*r*h;doublen=20*1000/v;cout
      |                                                               ^~~~~~~~
      |                                                               double
/in/foo.cc:1:82: error: 'doublev' was not declared in this scope; did you mean 'double'?
    1 | includeincludeusingnamespacestd;intmain(){doubleh,r;cin>>h>>r;doublepi=3.1415926;doublev=pi*r*r*h;doublen=20*1000/v;cout
      |                                                                                  ^~~~~~~
      |                                                                                  double
/in/foo.cc:1:90: error: 'pi' was not declared in this scope
    1 | includeincludeusingnamespacestd;intmain(){doubleh,r;cin>>h>>r;doublepi=3.1415926;doublev=pi*r*r*h;doublen=20*1000/v;cout
      |                                                                                          ^~
/in/foo.cc:1:99: error: 'doublen' was not declared in this scope; did you mean 'double'?
    1 | includeincludeusingnamespacestd;intmain(){doubleh,r;cin>>h>>r;doublepi=3.1415926;doublev=pi*r*r*h;doublen=20*1000/v;cout
      |                                                                                                   ^~~~~~~
      |                                                                                                   double
/in/foo.cc:1:115: error: 'v' was not declared in this scope
    1 | includeincludeusingnamespacestd;intmain(){doubleh,r;cin>>h>>r;doublepi=3.1415926;doublev=pi*r*r*h;doublen=20*1000/v;cout
      |                                                                                                                   ^
/in/foo.cc:1:117: error: 'cout' was not declared in this scope
    1 | includeincludeusingnamespacestd;intmain(){doubleh,r;cin>>h>>r;doublepi=3.1415926;doublev=pi*r*r*h;doublen=20*1000/v;cout
      |                                                                                                                     ^~~~
/in/foo.cc:1:121: error: expected '}' at end of input
    1 | includeincludeusingnamespacestd;intmain(){doubleh,r;cin>>h>>r;doublepi=3.1415926;doublev=pi*r*r*h;doublen=20*1000/v;cout
      |                                          ~                                                                              ^
/in/foo.cc:1:121: warning: no return statement in function returning non-void [-Wreturn-type]