5%

UID: 13845, Registered at 4 months ago, last login at 4 months ago, last active at 15 hours ago.

Solved 5 problems, RP: 6 (No. 6806)

♂

This person is lazy and didn't write anything.

P14154

This person is lazy and didn't join any contests or homework.

Java算法基础课: 5