Rating changes for last rounds are temporarily rolled back. They will be returned soon. ×

Newbie

tianyi_gu

Tianyi Evans Gu, United States
59 problems
solved for all time
2 problems
solved for the last year
0 problems
solved for the last month
4 days
in a row max.
1 day
in a row for the last year
0 days
in a row for the last month