打了这么多天codeforces，趁着几天没有场次，补补题，整理一下思绪，也方便自己查看

Codeforces Round #782 (Div. 2)

04.17        开3A2

A. Red Versus Blue

贪心        动态R中插B

B. Bit Flipping

待补

C. Line Empire

Codeforces Round #783 (Div. 2)

04.19        开3A2

Codeforces Round #784 (Div. 4)

04.21        开6A4

Educational Codeforces Round 127 (Rated for Div. 2)

04.22       开3A2

Codeforces Global Round 20

04.23        开3A2

SWERC 2021-2022 - Online Mirror (Unrated, ICPC Rules, Teams Preferred)

04.24        开3A2          

The 2021 China Collegiate Programming Contest (Harbin)

04.25       真·坐牢        开4A0