Euleryx Project 1 - Multiples of 3 or 5

[Pilsner]

Euleryx Problem 1 - Multiples of 3 or 5

Here's my full workflow and Answer:

Spoiler

Answer: 233168  

Method:

With this being the first problem in the series, we’re kicking things off with a relatively simple challenge. Typically, the challenges do get harder (which will likely become clear by Problem 3), but rest assured, we will do our best to explain what we’ve done.

That being said, the solution below is just one way to solve this problem; there are many different available routes! 

 

 

Here's how I tackled this problem:

1. I began by creating two lists, one list containing all the multiples of 3, and the other list containing all the multiples of 5. I found the Generate Rows tool to be ideal for this task.
   
   
2. Using both the Union and the Unique tool, I created a list of all the distinct multiples of 3 or 5 (below 1000).
   
   
   
   
3. Finally, to sum the column, I used the Summarise tool.
   
   
4. Submit your answer to the Project Euler website. 
   
   

Congratulations, you’ve finished your first Project Euler challenge! Looking forward to seeing you all this time next week for Problem 2.

 

Summary

In just 3 simple steps, we have already found an answer to the first Project Euler challenge. Please feel free to share your solutions below. I hope you enjoyed the first challenge.

[Pilsner]

Our favourite solution will get a shout-out in next week's post!

[BS_THE_ANALYST]

Right, I'll go first:

Solution:

Spoiler

Not one for tool golf normally (skill issue on my side, I appreciate tool golf from the sidelines) but it seemed fitting 😈

 Looking forward to seeing some tricks that folks use here! I'm a sucker for a new function 🥴🤌🤣😈

[TheOC]

Similar to @BS_THE_ANALYST ,
I found a 3 tool solution:

Spoiler

The mod function is really useful when I can remember it exists 😅

Nice challenge, looking forward to the next!

[Towers]

Very excited for this! Im terrible with maths so hopefully this series helps me out big time 😅.

Spoiler

Opted for using a tile tool just to be a little different.

[TheOC]

Playing toolgolf...

Spoiler

I found a way to make it 2 tools.

It's awful. Please do not replicate on anything practical:

The filtering can technically be done within the generate rows loop expression. It's so unreadable, and I'd suggest that it's just not a performant solution, but hey - reduced the tool count by 1!

[BS_THE_ANALYST]

@TheOC I love that you called the second solution "Dangerous Edition" 🤣.

Great idea with the looping expression trick. I considered this but I skipped it as I thought the loop would terminate if I was on a number that wasn't a multiple. Feeling jealous and unworthy at the moment, no biggie 🥴🤣

[Pilsner]

Loving some of the solutions already.

@TheOC, you've got me with the tool golf idea. Was saving the explanation for Problem 6, but I guess we can have a mini spoiler now:

One tool solution:

Spoiler

Ill just say one word, series. If that doesn't mean anything yet then don't worry, the explanation is already on its way. As "series" are so powerful they deserve their own post, we will cover them in detail on Problem 6.

[TheOC]

@Pilsner 
Literally my reaction opening that workflow

[aiahwieder]

Ooooooh, a new code challenge mashup, I love!

Here's my solution . . .

Spoiler

Starring my new best friend, Modulo!