Specialist

operator_

JQH-Rating-verify 3xPiGoZ5EeScXCkRIWgG, Hangzhou, China
481 problems
solved for all time
419 problems
solved for the last year
54 problems
solved for the last month
11 days
in a row max.
11 days
in a row for the last year
5 days
in a row for the last month