tags -> Codeforces

• 2018-11-30
  Codeforces contest 1082 E. Increasing Frequency
  Algorithm
• 2018-07-15
  Codeforces Contest 1009 E. Intercity Travelling
  Algorithm
• 2018-07-11
  Codeforces Contest 1005 E2. Median on Segments (General Case Edition)
  Algorithm
• 2018-02-27
  CodeForces 891 A. Pride
  Algorithm
• 2018-02-08
  CodeForces 699D Fix a Tree
  Algorithm
• 2018-02-08
  CodeForces 699C Vacations——动态规划
  Algorithm
• 2018-02-01
  CodeForces 697D 树+概率
  Algorithm
• 2018-01-09
  Codeforces 429B B.Working out
  Algorithm