Java Translation

TS translation, please review and approve.

• random tests strenghtened (from 10 to 10000);
• random tests restructured and factorized from the JS version.

Go translation

Kotlin translation ready for review and approval.

C translation 🌲🌳🌴 (author gone)

Rounding issues should be fixed with this kata. The user is not provided feedback on the training set used in testing. It should show expected as well as user answer, now only showing expected

Expected costFunctionJ(trainingSet2, 1, 1.1) to equal 10.028

Anyone stumbling upon the same problem: use Math.round(J * 1000) / 1000 for rounding to 3 decimals, not toFixed(3)

in JS, the reference solution is unable to handle empty trees. either this should be fixed and added as a test, ot the description should state that trees are non-empty

IMHO no need to be so verbose about 'char' or 'string' or blabla in the description, and... nothing about an illegal entry command (not '0', not '1') in the DFA...

The example in the description isn't that well picked. It doesn't show the full glory of h(x)

No random test in python.

Test.expect(Math.abs(costFunctionJ(trainingSet, 1, 1) - 1.5) < 0.0005, "Expected costFunctionJ(trainingSet, 0.5, 1) to equal 1.625");

You expect it to equal 1.5. The error message is wrong.

Tests shouldnt use expect.

Needs random tests.