Haskell translation

( Haskell )

Random tests are predictable: expected value is always the one where abs(x) <= 14.

Lua translation!

In Lua, expected and actual are swapped. assert.are.same(solution.count(a), k89(a)) should be assert.are.same(k89(a), solution.count(a)).

The description specifies upper limit as 10E8 which is most probably a typo (should be 1E8 or 1E9), and different translations interpret this differently. The ambiguity has to be resolved, notation has to be fixed, and translations which got it wrong have to be corrected.

Go Translation

Go Translation ;)

Go Translation ;)

Go translation

Just solved in Go.

My solutions was assuming the array of indices was sorted based on the examples and it woked for all the solutions.
I was also asuming the array contains no negative indices.
But, reading the description, the assumptions were just not correct.

About the first assumption, I suggest to either ...

• include the assumption that the indices are sorted in the description
• or add test cases where there are indices greater than the input string lenght before some actually valid indices.

About the second assumption, I suggest to either ...

• include the assumption that the indices are always positive
• or add test cases where there are negative indices. And even better if they are placed before some actually valid indices.

Failed random tests in Haskell do not show actual input string:

Falsifiable (after 1 test):
  ""
expected: 2
 but got: 0

I've made a fork that fixes this.

Haskell fork

• adds tests for no/all vowel strings

Rust translation

pytohn new test frameworks