glad to hear that

now it works tnx

sample test cases are same

sample test cases are same

File "/workspace/default/tests.py", line 15
test.assert_equals(count_black_cells(6666, 8888), 177
^
SyntaxError: '(' was never closed

good kata, but random tests needed.

It's okay, don't give up and you'll succeed.

changed

Your dynamic solution is no longer working.

You are correct, i changed it Thanks

changed

done

done

I changed the description to make it clearer.

This means that when the product is multiplied by 0, it must become 1