HDdss

UID: 2, Registered at 2026-1-31 15:50:04, last login at 2026-1-31 15:50:04, last active at 2026-1-31 19:43:52.

Solved 3 problems, RP: 0 (No. ?)

SU

Bio

This person is lazy and didn't write anything.
Accepted Problems
P1000
P1001
Recent Activities

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

This person is lazy and didn't write any solutions.

系统测试: 1
数据结构: 1
线段树: 1