
| Contest | 2003 | 2004 | 2005 | 2006 | 2007 | 
|---|---|---|---|---|---|
| Worldwide High School and Collegiate Onsites: | |||||
| IOI | TopCoder Collegiate Challenge Algorithm | Q | |||
| Date | Contest | Rank | Score | Prize | 
|---|---|---|---|---|
| 02 Nov 2007 | TCCC 2007 Algorithm | 100000031 
  
  qualified
 
  Ranked 31
  
  in Round 4
  
   | ||
| 23 Aug 2003 | IOI 2003 | 110 | 199.30/600 | |
| 18 Sep 2004 | IOI 2004 | 91 | 335/600 | |
| 25 Aug 2005 | IOI 2005 | 20 | 511/600 |