View Compilation Error

0_0_15428433_25989.cpp: In function 'int main()':
0_0_15428433_25989.cpp:18:5: error: expected '}' before 'else'
     else 
     ^
0_0_15428433_25989.cpp: At global scope:
0_0_15428433_25989.cpp:20:2: error: expected declaration before '}' token
 }}
  ^