ecou

UID: 4167, 注册于 2026-9-17 15:35:07, 最后登录于 2026-9-19 1:24:11, 最后活动于 2026-9-23 23:54:58.

解决了 2 道题目，RP: 4 (No. 752)

个人简介

该用户太懒，这里啥也没写 (´・ω・｀)
通过的题目
A1000
C2022A
最近活动

This person is lazy and didn't join any contests or homework.
最近编写的题解

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

系统测试: 1