View Compilation Error

0_0_31795945_31594.cpp: In function 'int main()':
0_0_31795945_31594.cpp:22:2: error: return-statement with no value, in function returning 'int' [-fpermissive]
  return ;
  ^
0_0_31795945_31594.cpp:22:9: error: expected '}' at end of input
  return ;
         ^