CC20260068

UID: 1719, Registered at 1 year ago, last login at 1 year ago, currently offline.

Solved 2 problems, RP: 2.7 (No. 207)

This person is lazy and didn't write anything.

P5660

P5681

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

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

2019: 2
CSP J 入门级: 2
字符串: 1