# Questions tagged [challenge-community]

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### Optimal Solution for OddsBeforeEvens Wolfram Challenge

Odds before Evens Given a list of integers, rearrange them so that all of the odd integers appear before all of the even integers, without otherwise changing the order. An obvious solution is ...
• 171
519 views

### Fill an empty matrix with the depth of its elements

Given an arbitrarily nested empty matrix like for example mat = { {}, {{}, {}}, {{}, {{}}, {}}, {{}, {{}}, {}, {{{}}}} }; and knowing that ...
• 77.5k
438 views

### Replacing consecutive empty sublists with their run-lengths

I have a list like this: ...
119 views

### How to gather functions which intersect at the same point?

How to gather functions which intersect at the same point (real solution)? func = {2 x, x^2 + 1, (x^3 + 3)/2}; For example, with the list of functions above I ...
• 2,111
159 views

### How does Leafcount work? [closed]

I am curious about how LeafCount works because when I count the number of leaves in my solution to a Wolfram Challenge, I get a much smaller result than those listed on the leaderboard for Multiples ...
• 1,725
1 vote
111 views

### How to optimize Code for Wolfram Challenges? [closed]

I am wondering if anyone who has knowledge of optimizing programs in the Wolfram language has any advice on how to optimize the following quantities of programs written to solve Wolfram Challenges. I ...
• 1,725
103 views

### How to access submitted answers to Wolfram Challenges? [closed]

I've seen a lot of interesting questions in the Wolfram Challenges here, but I don't know how to look at some of their current best answered code. I see a lot of participants providing a lot of fast ...