不及

UID: 23495, Registered at 2025-9-24 10:24:12, last login at 2025-12-16 12:03:23, last active at 2025-12-17 20:50:34.

Solved 6 problems, RP: 14 (No. 8121)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P3787

P3902
P4219

P4220
P4221

P4222
Recent Activities

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

入门教程: 4
双指针: 2