五秒8个理解

UID: 25227, Registered at 2025-10-17 15:42:10, last login at 2025-10-17 15:42:10, last active at 2025-10-29 22:20:35.

Solved 5 problems, RP: 19 (No. 6959)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P4031

P3835
P3836

P3840
P4243
Recent Activities

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

动态规划: 5