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UID: 38259, Registered at 2026-4-26 6:10:55, last login at 2026-5-7 14:39:39, last active at 2026-5-7 20:40:40.

Solved 1 problems, RP: 4.8 (No. 15120)

Bio

This person is lazy and didn't write anything.
Accepted Problems
P4770
Recent Activities

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

差分数组: 1