sigma3

UID: 1988, Registered at 2 years ago, last login at 2 years ago, currently offline.

Solved 23 problems, RP: 103 (No. 1155)

This person is lazy and didn't write anything.

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

华为: 10
寒气华のod: 2
腾讯: 2
农行: 2
美团: 2
蚂蚁: 2
入门教程: 1
58TC: 1
携程: 1