Accelerator:
博客地址：https://www.cnblogs.com/lr599909928/
Accelerator:
博客地址：https://www.cnblogs.com/lr599909928/
The 15th Chinese Northeast Collegiate Programming Contest C. Vertex Deletion (树形dp）
Deltix Round, Summer 2021 (open for everyone, rated, Div. 1 + Div. 2) D. Take a Guess (交互,位运算性质)(代码片
Educational Codeforces Round 110 (Rated for Div. 2) D. Playoff Tournament (线段树,模拟)
Educational Codeforces Round 110 (Rated for Div. 2) C. Unstable String (dp)
Codeforces Round #723 (Div. 2) D. Kill Anton (字符串构造，全排列）
AISing Programming Contest 2021（AtCoder Beginner Contest 202） E
AtCoder Beginner Contest 203（Sponsored by Panasonic）D
Educational Codeforces Round 109 (Rated for Div. 2) C. Robot Collisions (栈,模拟)
Codeforces Round #633 div2 A~C
Codeforces #637 div2 B. Nastya and Door
Codeforces Round #602 Div2 D1. Optimal Subsequences (Easy Version)
Codeforces ECR 83 C. Adding Powers (位运算)
Codeforces Round #642 (Div. 3) D. Constructing the Array (优先队列)
Codeforces Round #641 (Div. 2) D. Orac and Medians (贪心)
Codeforces Round #479 (Div. 3) E. Cyclic Components (思维,DFS)