User rpeng

30 problems solved

Rank by points: #250

Total points: 274

2 contests written

Rank by rating: #7

Rating: 2264

Volatility: 301

Min. rating: 1968

Max rating: 2264

From Georgia Institute of Technology

Working in the silver mining industry for almost two decades.

2008: NAIPC online open division 2nd place team, after tying first place team in problems AND penalty minutes.
2017: TLE `17 December 2nd place.
2017: DMOPC `17 December 2nd place.
2014: deputy leader for US IOI team, whose total score ranked 2nd overall.
2013: second input-sparsity time framework for solving regression problems.
2010: second nearly-linear time Laplacian solver, running time: $m\log^2n$ ~m\log^2n~.
2009: Croatian Olympiad in Informatics online round 2nd place.
2008: Waterloo Local Programming Contest, Spring, 2nd place.
2008: TopCoder SRM 405 2nd place.
2008: ACM ICPC WF (++silver)-medal (9th).
2007: Waterloo Local Programming Contest, Fall 1, 2nd place.
2006: IOI silver medal.
2006: USAICO (USACO Camp) silver medal.
2006: CCC stage 2 2nd place.
2006: USAMO honorable mention.
2006: ECOO regional contest 2nd place.
2006: CMC Euclid contest group 2.
2005: IMO silver medal.
2005: ECOO 2nd place.
2005: CMO 2nd place.
2005: CCC stage 2 2nd place.
2004: IOI silver medal.
2004: ECOO boardwide contest 2nd place.
2003: ECOO regional contest 2nd place.
2002: CCC Junior division group 2.
2001: CMC Pascal contest 2nd place.
1999: Jiangsu NOIP elementary school division 2nd place.