Thank you! I think, in some questions, the way to solve is invented by scientists. I don't have to feel shame about I don't have the same IQ as them. I'm just average, sad.

Amazing!Collected it.

Unbelievably! this shit is working and passed.

Hey @newman-afk - you're not too stupid to solve it, it's just that you have to solve exercises in order of difficulty: the concepts you learn from solving lots of 7,6 kyu help with the 5, then onwards on to the 4 etc :) Everyone goes through the same process, and it just takes time to learn that's all.

I am already giving up and saw the answer on StackOverflow. That's a different idea I can't figure out by myself, I guess I'm just too stupid to solve it.
still thank you

Hey @newman-afk and welcome to Codewars!

As you can see, this is a 4 kyu kata so it's intended to be a bit more difficult - in general, beyond ~kyu 6 simple brute force approaches are unlikely to work. You need to find a smarter approach.

In the test cases, there are example inputs such as:

exp_sum(275), 1520980492851175

that's a very big number to reach with exhaustive enumeration!

Time out!I wanna cry.
I just wanna know if isn't exhaustive enumeration wrong.Someone help me!

Nice coding style! Hard to understand and even harder to duplicate.

It's hard to understand, but beautiful! Cool is everything

kata hint != kata suggestion (also use spoiler flag please

I spent 2-3 hours on the wrong idea and eventually find the right way to solve it, but the code is horrible. Your work is smart and dry, and you are humble to explain it in many words, thank you.
If I did it as wonderfully as you I may like: this is easy, I don't know，┑(￣Д ￣)┍

Please use Solutions section to discuss solutions. This is not a kata suggestion.

Amazing!Love it

The price of wisdom is incomprehensible