chen_yukun

UID: 2750, Registered at 2024-7-23 18:47:09, last login at 2025-8-5 14:56:01, currently offline.

Solved 12 problems, RP: 59 (No. 1139)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P1

P2

P3
P4

P5

P7
P8

P9

P16
P18

P19

P20
Recent Activities

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