that's why programmers have to learn maths anyways

well, we have similar idea :D

@Discidee this won't work for this common case "qwertyuiopasdfghjklzxcvbnm" where it's should be True but it's not existed in kata's tests

you are just verify if the length of string is more than 27 and that's not what this kata wants you to do however it's working properly because all True cases have length higher than 27 that's why your code is working

i hate the useless cases that i should handle in katas such like parameter is None, why? it just ruin the enjoyment ;-;

thanks for help

it's simple as it's all up to the sum notation that i wrote on my notebook and followed it

"How much tries to make it running"

me: 2 times

"look we have same idea :D T_T"

i felt so dumb but i realize that sensei is just bullying us
i will not forget the dummiest keyword i have been confused on is pair :D

dear reader if you still stack in this problem come and join me by ^

that what i was looking for :D
you are UNIQUE

@Chrono79, as you said ["NORTH", "WEST", "SOUTH", "EAST"] is not reducible, am agree

but how's ["EAST", "WEST"] not the same as the example above?? it's reducible too, isn't it?! why is [] acceptable not ["EAST", "WEST"] as it is?

everybody should activate Harding-Code Skills to solve this kata

You can find some examples in Sample Tests field