
| Contest | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Major Individual Competitions: | |||||||||||||
| TopCoder Open Algorithm | top‑72 | Google Code Jam | Q | - | 47 | Q | 13 | 16 | 20 | ||||
| Worldwide High School and Collegiate Onsites: | |||||||||||||
| IOI | TopCoder High School | - | Q | - | - | - | - | - | - | - | - | - | - | ICPC World Finals | 
| Date | Contest | Rank | Score | Prize | 
|---|---|---|---|---|
| 19 May 2007 | TCHS 2007 | 100000002 
  
  qualified
 
  Ranked 2
  
  in Round 3 Delta
  
   | ||
| 15 Mar 2008 | TCHS 2008 | 1 | 1499.37 | $15000 | 
| 22 Aug 2007 | IOI 2007 | 2 | 555/600 | |
| 27 Oct 2006 | Google Code Jam 2006 | 100000005 
  
  qualified
 
  Ranked 5
  
  in Round 2
  
   | ||
| 14 Nov 2008 | Google Code Jam 2008 | 47 
  
  47
 | 36/100 | $750 | 
| 13 Nov 2009 | Google Code Jam 2009 | 100000004 
  
  qualified
 
  Ranked 4
  
  in Round 3
  
   | ||
| 27 Jul 2012 | Google Code Jam 2012 | 13 
  
  13
 | 82/200 | $100 | 
| 11 Aug 2017 | Google Code Jam 2017 | 16 
  
  16
 | 70/200 | $100 | 
| 10 Aug 2018 | Google Code Jam 2018 | 20 
  
  20
 | 15/200 | $100 | 
| 15 May 2008 | Topcoder Open 2008 Algorithm | 56 
  
  semifinalist (top‑72)
 
  Ranked 19
  
  in Semifinal 1
  
   | 202.61 | $500 | 
| Date | Contest | Rank | Team | Score | Prize | 
|---|---|---|---|---|---|
| 30 May 2011 | ACM-ICPC 2011 World Finals | 3 | Tsinghua University 
  
  (Dubhe):
   | 7/11 |  $8100 |