qjj

UID: 11134, Registered at 10 months ago, last login at 9 months ago, currently offline.

Solved 8 problems, RP: 19 (No. 210)

This person is lazy and didn't write anything.

P1596

P1526

P1523

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

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

二分: 2
前缀和: 1
DFS: 1