jsh 2020.05.08-2020.05.14 周报

O: Accepted, @: Upsolved

5/8 - 牛客练习赛63:

题目ABCDEF
状况OOOO@O

5/10 - Codeforces Round #641 (Div. 1):

题目ABCDEF1F2
状况O@O

5/14 - Codeforces Round #642 (Div. 3):

题目ABCDEF
状况OOOOOO