BRILLIAthon Problems

This discussion board is a place to discuss our Daily Challenges and the math and science related to those challenges. Explanations are more than just a solution — they should explain the steps and thinking strategies that you used to obtain the solution. Comments should further the discussion of math and science.

When posting on Brilliant:

Use the emojis to react to an explanation, whether you're congratulating a job well done , or just really confused .
Ask specific questions about the challenge or the steps in somebody's explanation. Well-posed questions can add a lot to the discussion, but posting "I don't understand!" doesn't help anyone.
Try to contribute something new to the discussion, whether it is an extension, generalization or other idea related to the challenge.
Stay on topic — we're all here to learn more about math and science, not to hear about your favorite get-rich-quick scheme or current world events.

Markdown	Appears as
`italics` or `_italics_`	italics
`bold` or `__bold__`	bold
- bulleted - list	bulleted list
1. numbered 2. list	numbered list
Note: you must add a full line of space before and after lists for them to show up correctly
paragraph 1 paragraph 2	paragraph 1 paragraph 2
`[example link](https://brilliant.org)`	example link
`> This is a quote`	This is a quote
# I indented these lines # 4 spaces, and now they show # up as a code block. print "hello world"	# I indented these lines # 4 spaces, and now they show # up as a code block. print "hello world"

Math	Appears as
Remember to wrap math in `$` ... `$` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$

Comments

@David Vreken , @Siddharth Chakravarty , @Hamza Anushath , mention[10420647:Percy Jackson], @Gu Yuchen , @Jeff Giff , mention[9836328:Feng Li]

Yajat Shamji - 11 months ago

@Percy Jackson, @Feng Li

Frisk Dreemurr - 11 months ago

$1$ hour until end of Day $1$ ...

Nobody from the competition has solved Problem $2$ ...

Yajat Shamji - 11 months ago

These questions are kind of hard for a kid who started high school. I admit.

Feng Li - 11 months ago

Feng Li

Australia, 43

I smell something fishy...............................coz ima son of poseidon lol xd

A Former Brilliant Member - 11 months ago

@A Former Brilliant Member – Using parent's

Feng Li - 11 months ago

@Feng Li – Ok, though i guessed it already, I'm not as dumb as i let on...............................

A Former Brilliant Member - 11 months ago

@Feng Li , My sister in 4th grade has no trouble with these dude, how old are you really?

A Former Brilliant Member - 11 months ago

$1$ hour until end of Day $2$ ...

Nobody from the competition has solved Problem $1$ of Day $2$ ...

Yajat Shamji - 10 months, 3 weeks ago

Update: Day $3$ problems are out!

It looks like a points race down to the Planck length... :D

Yajat Shamji - 10 months, 3 weeks ago

Update: I have reposted Day $3$ , Problem $1$ - over $5$ minutes left to solve and post a solution!

Yajat Shamji - 10 months, 3 weeks ago

Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$