
| Contest | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Major Individual Competitions: | ||||||||||
| TopCoder Open Algorithm | - | - | - | - | - | top‑16 | 16 | 15 | Google Code Jam | - | - | - | - | - | 9 | 8 | - | 
| Worldwide High School and Collegiate Onsites: | ||||||||||
| IOI | ICPC World Finals | - | TopCoder Collegiate Challenge Algorithm | - | - | - | - | - | 5 | |
| Date | Contest | Rank | Score | Prize | 
|---|---|---|---|---|
| 16 Apr 2004 | TCCC 2004 Algorithm | 5 
  
  5
 
  Ranked 2
  
  in Wildcard
  
   | 610.15 | |
| 12 Sep 1998 | IOI 1998 | 41 | 540/700 | |
| 14 Nov 2003 | Google Code Jam 2003 | 9 
  
  9
 | 209.68 | $250 | 
| 15 Oct 2004 | Google Code Jam 2004 | 8 
  
  8
 | 581.47 | $511 | 
| 05 Dec 2003 | TopCoder Open 2003 Coding | 7 
  
  semifinalist (top‑16)
 
  Ranked 2
  
  in Semifinal 2
  
   | 479.59 | $1000 | 
| 05 May 2006 | Topcoder Open 2006 Algorithm | 16 
  
  16
 
  Ranked 10
  
  in Wildcard
  
   | 192.55 | $500 | 
| 29 Jun 2007 | Topcoder Open 2007 Algorithm | 15 
  
  15
 
  Ranked 9
  
  in Wildcard
  
   | 173.89 | $400 | 
| Date | Contest | Rank | Team | Score | Prize | 
|---|---|---|---|---|---|
| 25 Mar 2003 | ACM-ICPC 2003 World Finals | 9 | Taras Shevchenko Kiev National University 
  
  (Argonauts):
   | 6/10 |  $1500 |