I'd be using this post to help organize good problems which are lacking worthy solutions.

If you would like to see a solution to a particular problem, please state the problem title, provide a link to it and also state the topic. You can also @mention the creator, so that she/he is made aware. If the problem was already listed, you can upvote the comment. To keep this list reasonable, these problems should have been posted for at least a week.

If you added a solution to the problem, please reply to the comment. Once your solution has been upvoted several times, I'd then clear out the comment, so as to keep things fresh. (Do not post your solution as a reply)

Once someone has added a solution, I will push the comment to the top. Please can check their solution, and provide some feedback on it. If you have a different approach, add it and enlighten all of us.

Kudos to the following for writing solutions.

1. Jatin Yadav \( \times 3 \)

2. Siddhartha Srivastava

3. Kumar Gupta

4. Jon Haussman

5. Beakal Tiliksew

6. [Happy melodies}(https://brilliant.org/profile/happy-a75fqm/feed/)

7. Pranav Arora \( \times 2 \)

8. Nathan Ding

9. N K

10. Ariel Gershorn

Solutions which need reviewing

1. Another Infinite Circuit

2. Colourful Electrons

3. Domino domination

## Comments

Sort by:

TopNewestAnother Infinite Circuit, Electricity and Magnetism

@Vishnuram Leonardodavinci and @Jon Haussmann , can you please add a solution to this problem?

I understand it sounds strange because I am myself in the recent solvers list. My approach to this problem is flawed (which I later realised). I will explain it in comments once the solution is posted. – Pranav Arora · 2 years, 9 months ago

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@Calvin Lin : Jon Haussmann has added a solution to the problem, can you please add him to the list? :)

Thanks! – Pranav Arora · 2 years, 8 months ago

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@Sharky Kesa I would like a solution to A trigonometric integral , Calculus – Jatin Yadav · 2 years, 9 months ago

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@Jon Haussmann @Cole Coupland Can you please post a solution?

Thanks. – Jatin Yadav · 2 years, 8 months ago

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@Sharky Kesa : Can you please post a solution to this? :) – Pranav Arora · 2 years, 9 months ago

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@Sharky Kesa Can you add a solution? Thanks. – Calvin Lin Staff · 2 years, 8 months ago

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One for CS Twenty million chances to get it wrong – Thaddeus Abiy · 2 years, 9 months ago

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– Kp Govind · 2 years, 9 months ago

Ah yes. I remember this problem. I'd love a solution to thisLog in to reply

@Chung Gene Keun Can you add a solution to this problem? – Calvin Lin Staff · 2 years, 9 months ago

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@Milun Moghe I would like a solution to We Often See It Like This Electricity And Magnetism – Calvin Lin Staff · 2 years, 9 months ago

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@Vishnuram Leonardodavinci Care to share how you solved this problem? – Calvin Lin Staff · 2 years, 9 months ago

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The Answer Is Not 0.225, Algebra – Calvin Lin Staff · 2 years, 9 months ago

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@Sami Cool @Ritwik Mohanty @Nilotpal Chakraborty @Irvi Firqotul Aini @Kevin J. @Sameer Wadjikar

Care to share how you solved this problem? – Calvin Lin Staff · 2 years, 9 months ago

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@Jon Haussmann sir please provide a solution to this problem – Starwar Clone · 5 months, 2 weeks ago

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@Brian Charlesworth @Jon Haussmann sir please provide a solution to That is close – Starwar Clone · 6 months, 2 weeks ago

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– Jon Haussmann · 6 months, 2 weeks ago

Like I said before, you need to provide a link to the problem.Log in to reply

– Starwar Clone · 6 months, 2 weeks ago

i have posted the link https://brilliant.org/problems/that-is-close/?ref_id=1232530Log in to reply

@Jon Haussmann sir please provide a solution for ... Inspired by mehul chaturvedi – Starwar Clone · 8 months, 3 weeks ago

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– Jon Haussmann · 8 months, 3 weeks ago

Can you post the link to the problem?Log in to reply

this problem. However, there are already several distinct solutions posted. – Calvin Lin Staff · 8 months, 3 weeks ago

I'm guessing he meansLog in to reply

I would like a solution to this Electricity and Magnetism problem: Gauss Practice (Hard) – Kp Govind · 1 year, 10 months ago

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– Kp Govind · 1 year, 10 months ago

Am I expected to tag people here?Log in to reply

– Starwar Clone · 1 year, 10 months ago

Yes then they'll come to see your postLog in to reply

@David Mattingly: Sir can you please post a solution to the problem? – Kp Govind · 1 year, 10 months ago

Ok.Log in to reply

@Jon Haussmann sir please provide a solution to Not as easy as it looks – Starwar Clone · 1 year, 10 months ago

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– Jon Haussmann · 1 year, 10 months ago

I have posted a solution.Log in to reply

– Starwar Clone · 1 year, 10 months ago

Thanks a lot againLog in to reply

This problem – Megh Choksi · 2 years ago

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Having a doubt in this problem can you please check @Calvin Lin – Megh Choksi · 2 years ago

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This problem – Megh Choksi · 2 years ago

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@Jon Haussmann @calvin lin @ Vishnuram leonardodavinci Ap or not ap part 2 .....Please provide a solution to this problem – Starwar Clone · 2 years, 4 months ago

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https://brilliant.org/community-problem/its-youngs-excluded-not-olds-included/?group=lyFLsSKNBAIu @Milun Moghe @Vishnuram Leonardodavinci @Anish Puthuraya

Can you please add a solution to it? – Anup Navin · 2 years, 6 months ago

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How to solve this??? 2014 towns? 1402 roads? @Hoo Zhi Yee – Happy Melodies · 2 years, 7 months ago

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Its just a note. But could someone please post a suggestion on how to go about with it Buried Treasure – Vishwa Shah · 2 years, 7 months ago

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ascending and descending please provide a solution to this problem @Calvin Lin @Jon Haussmann @Daniel Liu @Vishnuram Leonardodavinci @jatin yadav @Eddie The Head – Starwar Clone · 2 years, 7 months ago

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– Calvin Lin Staff · 2 years, 8 months ago

I've reshared the problem. It's a standard probability problem.Log in to reply

Sir can you help me with this problem??Especially the case where it is generalized(nxn determinant)?? – Eddie The Head · 2 years, 8 months ago

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I would like a hint or a solution to the problem Domino Domination..

My approach was to come up with a recursive definition of the process and then find the solution using a computer program but I couldn't do it.....Should the problem be approached in any other way?? – Eddie The Head · 2 years, 8 months ago

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– Calvin Lin Staff · 2 years, 8 months ago

Solve the recurrence relation, and you should be able to obtain an explicit formula. Check OEIS if necessary.Log in to reply

– Eddie The Head · 2 years, 8 months ago

What is OEIS??Log in to reply

Link – Siddhartha Srivastava · 2 years, 8 months ago

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@2000 as Powers of 2..............please provide a solution to this ....@Calvin Lin @Daniel Liu @jatin yadav @Vishnuram Leonardodavinci @Jon Haussmann – Starwar Clone · 2 years, 8 months ago

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Can @Anish Puthuraya please add a solution to the problem The Journey of the Solitary Rod? https://brilliant.org/community-problem/the-journey-of-the-solitary-rod/?group=aEbPpxv9oKGo&ref_id=186844 – Anup Navin · 2 years, 8 months ago

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