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「EZEC-5」「KrOI2021」Chasse Neige

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Information

ID
6022
Time
400ms
Memory
256MiB
Difficulty
9
Tags
  • 动态规划,dp
  • 数学
  • 递推
  • O2优化
  • 组合数学
  • 排列组合
  • 生成函数,GF
  • 微积分初步
  • 积分
  • 级数
  • 快速傅里叶变换 FFT
  • 快速数论变换 NTT
  • 洛谷月赛
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