lanyinia

UID: 6770, Registered at 1 year ago, last login at 1 month ago, last active at 1 hour ago.

Solved 3 problems, RP: 17 (No. 5000)

♂

This person is lazy and didn't write anything.

P2163

P2744

P2977

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

携程: 1
思维: 1
HWOD-E卷: 1