View Compilation Error

0_0_36326096_9314.cpp:1:1: error: 'n' does not name a type
 n) && n != 0)
 ^
0_0_36326096_9314.cpp:23:5: error: expected unqualified-id before 'return'
     return 0;
     ^
0_0_36326096_9314.cpp:24:1: error: expected declaration before '}' token
 }
 ^