| # | User | Rating |
|---|---|---|
| 1 | tourist | 4009 |
| 2 | jiangly | 3823 |
| 3 | Benq | 3738 |
| 4 | Radewoosh | 3633 |
| 5 | jqdai0815 | 3620 |
| 6 | orzdevinwang | 3529 |
| 7 | ecnerwala | 3446 |
| 8 | Um_nik | 3396 |
| 9 | ksun48 | 3390 |
| 10 | gamegame | 3386 |
| # | User | Contrib. |
|---|---|---|
| 1 | cry | 167 |
| 2 | Um_nik | 163 |
| 3 | maomao90 | 162 |
| 3 | atcoder_official | 162 |
| 5 | adamant | 159 |
| 6 | -is-this-fft- | 158 |
| 7 | awoo | 157 |
| 8 | TheScrasse | 154 |
| 9 | Dominater069 | 153 |
| 9 | nor | 153 |
Hello CF!
I think many of you, in particular IOI participants, can not find a good, clear solutions of IOI problems, so I decided to create a blog where we will publish a problem then find solution for it and start to solve next problem (like on AOPS).
Let me begin — IOI 2006 B. Pyramid.
This page may be useful.
I know that I can I find solutions on this site but I think people have a lot of creative solutions for these problems.
Hello sir,thanks for the link :) But how to find questions of previous IOI's and their solution in this site
List of previous IOIs, click on a year to see the problems
Literally follow his link and click on the olympiad you want to check out, then follow the links (usually "The Competition")
Next task — IOI 2008 B. Islands.
Where can we test IOI problems , I mean is there any online link ?
Most of them are available on wcipeg
Also you can ask yeputons for an account on http://acm.math.spbu.ru/ . You can find there all IOI problems from 2003 up to 2014.