The author of this kata states "There are no complicated formula that propagate many errors". I solved the kata with a rather complicated formula and it did propagate many errors, till I figure out when and where to do the notorious rounding.

6 votes for Best Practices..I am speechless...

There are 100 random tests...

I passed 10-13 random tests and then it times out, so it seems there are several random tests. One of the posts below says there are around 25 random tests, could be more. My code takes average 500ms to pass one random test, I believe I will have to pass each random test in less than 100ms to complete all tests.

Very dedicated coder. I would hire you ;-))

Great kata! Finally I managed to pass all tests. The kata requires a lot of circle geometry, tangent lines, circle intersections etc.

geoffp has been writing great katas. Last week I solved a kata, written by him, on Optical Character Recognition, which was challenging and fun. I have been working on this kata for a couple of days now and still hasn't come across any strategy to solve it. Let's see how it goes...

Good use of simple maths. Though, it is not considered a best practice to write a long unreadable code. ?: operators are considered less readable then if..else statements.

The solution can cause stackoverflow with large numbers.

I think if you have only two eggs and m tries, the answer would always be (m/2)*(m+1). The pattern would be 14, (14+13), (14 + 13 + 12)...I don't know how the pattern changes if you have more than 2 eggs; that's very tricky!!

Very good kata. Thanks to the kata writers for their hardwork.

I would declare 'sum' and 'i' as 'unsigned' because a large positive value of 'start' and 'end' would generate error in this code.

I agree with the following comment. I just finished this kata in C and the memory allocation and clearing was not streight-forward. I believe, especially for C, this kata should be level 5.