20r10YkGCG

UID: 30631, Registered at 2026-3-19 9:56:42, last login at 2026-3-19 20:27:10, currently offline.

Solved 2 problems, RP: 9 (No. 10861)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P4552
P4553
Recent Activities

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

动态规划: 1
双指针: 1