http://www.i-olymp.net/olymp/winer20111.pdf

Congrats on your success

*brags*, this is enormous, we couldn't believe we got a gold medal
I thought it deserved a topic for itself lol~

How come no teams further west than Hungary entered? Also, wtf at that Russian Team in 1st place.

Congrats.

I don't know if nothing west than hungary didn't participate(triple neg sentence?), but at least not in the winners O_o there were 189 teams total. you can see the questions here; no calculators or computers are allowed, except a calculator in the last question.
the first problem is easy, the rest are hard/tricky.

and about the russians, they always take medals lol. these people are seriously good

Congratulations, Shoval! I'm happy for you mate. =)

Number 6 is quite a doozy.

i thought that 1-8 were quite confusing...

If I wasn't allowed to use a calculator for the last question I would fail it... and I suck at factorials so I'd need a calculator for question 5... 1 looks ok...

I can give you the full solutions file, but you'll have to know math to understand some of them. for rxample, question 4 - with the third root of 0.999999... - only one team solved it

I'd be interested in seeing the solutions, but I'm not sure what you mean by "know math" sometimes it seems like your on another scale entirely.

Lucky it wasn't an english competition though because I don't think "ME SO AWESOME!" would cut it.

Can't you simply do question 4 with a Taylor expansion of x^(1/3) around x=1? Because of the tiny difference you will only need the first four terms. I think this gives me a 6 as 300th decimal and a 0 as 301st decimal.

It is striking how every university in that list except for yours is from the former Soviet Union.

Edit: Taking a quick look at the questions, the only ones I can't solve immediately are 3, 5 and 8.
For 8 I could the trapezoidal method, but I don't remember how to approximate the error from the stepsize, so I don't know when my relative error is lower than 20%.
For 5 I think I can split it up into separate fractions and try to find an algebraic expression or try to bring it bring it all under one denominator. I think I can solve this, but it will take some effort.
For 3 I have no ideas yet. Geometry was never my strongest point. I suppose I would first draw it all out for small numbers of n and try to find a correlation.

1 and 2 are the simple ones(btw, in 2, once you solve it you see that it doesn't even matter how many sides the n-gon has! it's awesome and simple, beautiful). 3 is lengthy; about 4, that is correct eventually, but your solution is wrong. the problem is showing why the 4th term is not something we care about. about 5, what you think is the first thing I tried to do, but eventually it doesn't work. question 6 is difficult without a calculator - the original question required you to give an answer that is 99% accurate at least. showing this was the problem. I showed it as a binomial and summed until the term is small enough and proved the next ones are smaller, this was sh*tty work. their solution is not so cool.. 7 was pretty hard, did you solve it, and prove your solution? and about 8, what we eventually did was calculate the riemann sums. proving that the error margin was less than 20% was hard even though it was less than 1%, lol.

official solutions are here.

Silly me forgot dividing by the factorial for question 4. And the 4th term might be important if its first decimal turns out to be greater than the 301st decimal of the first 3 terms. So it is still necessary to calculate this.

This has given me a lovely opportunity to remember that I suck horrifically at maths. Shos, when you, Jell and other mathematically savvy Europeans lead the new world order, I'll testify that you guys probably deserve it.

I'll publicly announce that if you are yaya, come and be rewarded. since many people will claim so, each person will have to play badlands rumble, and if they can beat it, we'll have to keep narrowing down till we get you...

I would also publicly award you, but I plan to lead my world order from the shadows. And doing anything publicly is a bit detrimental to that. So if you find the world in complete control of an anonymous dictator, know that I am thinking of you.

Jelly, so cute!

my first order as a dictator of the world would be to execute all males, lol.