derder
UID: 2149, Registered at 2026-3-12 23:11:35, last login at 2026-3-12 23:12:13, last active at 2026-3-28 20:55:24.
Solved 5 problems, RP: 10.5 (No. 995)
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Bio
This person is lazy and didn't write anything. -
Accepted Problems
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Recent Activities
This person is lazy and didn't join any contests or homework.
Problem Tags
- CSP
- 4
- 模拟
- 3
- 其他
- 2
- 位运算
- 2
- 字符串处理
- 1
- 清华推研机试
- 1
- 考研
- 1
- 环境测试
- 1
- 校内推免
- 1
- STL
- 1