# Weekly Challenge

Solve the challenge, share your solution and summit the ranks of our Community!
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## Challenge #213: Optimized Flower Arrangements

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Alteryx Certified Partner

my solution

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Alteryx Certified Partner

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I spent a while trying to get 'Constraints in Rows' to work, but it kept on totalling to more than 950.

*I did try sorting the data by price ascending, which got the answer closer to 950, but was still over

I asked my go to optimisation guy @PhilipMannering to help, but he couldn't solve my issue. I've kept the original way I had the tool set up so if anyone with more nous than I can have a look and tell me what I was doing wrong I'd be a very happy Ollie

Alteryx Certified Partner

Input some objective to maximise; input some cost matrix; input some constraints; receive an error; debug using sample workflows; ...; success!

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Alteryx Certified Partner

This was fun - dredging up knowledge on a tool I have not used in a while!

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Alteryx Partner

I have compute 2 set of results.

1st consider the green filler is one kind of flowers

2nd the green filler is not classified as flowers, so I simply minimise the number of the and apply the budget to max the number of flowers.

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Alteryx Certified Partner

Interesting challenge! Thanks

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7 - Meteor
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Alteryx Certified Partner

I think I've worked out the issue I was having. The cross-tab puts the headers in alphabetical order, which the flowers aren't, so they didn't line up properly in the Optimisation tool. Sorting alphabetically by flower name fixed my issue (cc: @PhilipMannering)

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Alteryx Partner

Seems to be impossible for me to remember how to use optimization tool since it always feels like I have never seen it before when I need it.. Maybe the next time will be easier (most likely not)

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Alteryx Partner

Hello

Here's my solution

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@johnemery thank you for the video that helped me a lot to understand these tool beside the tool mastery.