| Rank | Score | Rating | Δ | Date | Event | ||
|---|---|---|---|---|---|---|---|
|
|
25
|
0.94 | · | · | Sept. 21, 2011 |
 |
Wikipedia's Participation Challenge |
|
|
40
|
0.02 | · | · | Aug. 18, 2011 |
|
Mapping Dark Matter |
Codeforces