umbra

UID: 1798, Registered at 2024-4-13 0:40:50, last login at 2024-4-13 0:41:28, currently offline.

Solved 2 problems, RP: 15 (No. 828)

Bio

This person is lazy and didn't write anything.
Accepted Problems
E539
E558
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.

其他: 2
二分查找: 2
二分查找其他: 2