View Compilation Error

0_0_18573191_13004.cpp:3:6: error: expected constructor, destructor, or type conversion before ';' token
  
      ^
0_0_18573191_13004.cpp:4:1: error: expected unqualified-id before numeric constant
 9  
 ^
0_0_18573191_13004.cpp:7:2: error: 'nbsp' declared as reference but not initialized
  f
  ^
0_0_18573191_13004.cpp:7:7: error: 'f' does not name a type
  f
       ^
0_0_18573191_13004.cpp:11:6: error: expected constructor, destructor, or type conversion before ';' token
  
      ^
0_0_18573191_13004.cpp:12:5: error: redefinition of 'int& nbsp'
 int main
     ^
0_0_18573191_13004.cpp:7:2: note: 'int& nbsp' previously declared here
  f
  ^
0_0_18573191_13004.cpp:13:4: error: expected constructor, destructor, or type conversion before 'nbsp'
 () 
    ^
0_0_18573191_13004.cpp:14:1: error: expected unqualified-id before '{' token
 {
 ^