View Compilation Error

0_0_28686780_27038.cpp: In function 'int main()':
0_0_28686780_27038.cpp:56:6: error: 'f' was not declared in this scope
   if(f==1111)
      ^
0_0_28686780_27038.cpp: At global scope:
0_0_28686780_27038.cpp:66:2: error: expected unqualified-id before 'return'
  return 0;
  ^
0_0_28686780_27038.cpp:67:1: error: expected declaration before '}' token
 }
 ^