1. Problem Set
  2. More
  1. Login
  2. Language

4 problems

  • 1
ID Problem Show tags Hide tags AC / Tried Difficulty
747 P1784  数独
  • 搜索
  • Dancing Links
0 / 0 3
3145 P4205  [NOI2005] 智慧珠游戏
  • 搜索
  • 2005
  • NOI
  • 枚举
  • 剪枝
  • Dancing Links
1 / 1 6
3938 P4929  【模板】舞蹈链(DLX)
  • 搜索
  • Special Judge
  • 剪枝
  • Dancing Links
  • 状态压缩
0 / 1 6
9908 P10482  Sudoku 2
  • 剪枝
  • Dancing Links
0 / 0 5
  • 1

Categories

  • 动态规划
  • 搜索
  • 计算几何
  • 贪心
  • 树结构
  • 图结构
  • 数论
  • 模拟
  • 数据结构
  • 博弈论
  • 字符串
  • 组合数学
  • 线性代数
  • 高精度
  • 递推
  • 概率论
  • NPC
  • 其他

Lucky

Pick a problem randomly based on the current filter.

Status

  • Judging Queue
  • Service Status

Development

  • Open Source
  • API

Support

  • Help
  • QQ Group
  1. About
  2. Contact Us
  3. Privacy
  4. Terms of Service
  5. Copyright Complaint
  6. Language
  7. Legacy mode
  8. Theme
  1. 粤ICP备2021104657号
  2. Worker 0, 12ms
  3. Powered by Hydro v4.14.1 Community

Don't have an account?

By signing up a HFOJ universal account, you can submit code and join discussions in all online judging services provided by us.

CLOSE

SIGN IN

Using your HFOJ universal account

Forgot password or username?