2021

• 2021-06-11Codeforces 1525D - Armchairs
• 2021-06-09Codeforces 1535C - Unstable String
• 2021-05-27Codeforces 1528B - Kavi on Pairing Duty
• 2021-05-10Codeforces 1498D - Bananas in a Microwave
• 2021-05-10Codeforces 1519D - Maximum Sum of Products
• 2021-05-08Codeforces 1498C - Planar Reflections
• 2021-05-04Codeforces 1513C - Add One
• 2021-05-03Codeforces 1512E - Permutation by Sum

2020

• 2020-10-27动态规划阶段小结