Homework Introduction
前缀和&差分,题目有难度,但不一定按难度排序。
Problem
Please claim the assignment to see the problems.
- Status
- Ready (☆▽☆)
- Problem
- 18
- Open Since
- 2025-10-3 9:00
- Deadline
- 2025-10-18 23:59
- Extension
- 24 hour(s)
前缀和&差分,题目有难度,但不一定按难度排序。
By signing up a HFOJ universal account, you can submit code and join discussions in all online judging services provided by us.