File "w01.ml", line 15, characters 12-14: Warning 2: this is not the end of a comment. File "w01.ml", line 21, characters 0-3: Warning 5: this function application is partial, maybe some arguments are missing. File "w01.ml", line 31, characters 4-5: Warning 8: this pattern-matching is not exhaustive. Here is an example of a value that is not matched: 0 File "w01.ml", line 36, characters 0-1: Warning 10: this expression should have type unit. File "w01.ml", line 20, characters 8-9: Warning 27: unused variable y. File "w01.ml", line 43, characters 2-3: Warning 11: this match case is unused.