View Compilation Error

0_0_31792526_2012.cpp:18:6: error: expected unqualified-id before 'else'
     }else {
      ^
0_0_31792526_2012.cpp:21:5: error: expected unqualified-id before 'return'
     return 0;
     ^
0_0_31792526_2012.cpp:22:1: error: expected declaration before '}' token
 }
 ^