/in/foo.cc: In function 'int main()':
/in/foo.cc:13:26: error: expected ']' before ')' token
   if (b[i] <= a[f] && b[i) != 0){
                          ^
/in/foo.cc:13:28: error: expected primary-expression before '!=' token
   if (b[i] <= a[f] && b[i) != 0){
                            ^~