Rank | Score | Rating | Δ | Date | Event | ||
---|---|---|---|---|---|---|---|
|
81
|
1 | · | · | June 4, 2017 |
Problem 606. Gozinta Chains II | |
|
93
|
1 | · | · | June 19, 2016 |
Problem 565. Divisibility of sum of divisors | |
|
78
|
1 | · | · | Oct. 11, 2014 |
Problem 484. Arithmetic Derivative |