ren

UID: 2074, Registered at 3 weeks ago, last login at 3 weeks ago, currently offline.

Solved 2 problems, RP: 15 (No. 864)

This person is lazy and didn't write anything.

E427

E429

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

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

搜索: 2
DFS: 2
BFS: 2
BFS搜索: 2
深搜: 2
递归: 2
广搜: 2