随笔分类 - oj - Codeforces

Codeforces Round 1054 (Div. 3) - D、E（双指针、容斥）

摘要：目录D. A and BE. Hidden Knowledge of the Ancients Codeforces Round 1054 (Div. 3) D. A and B 参考了 Tutorial 题意很简单，（总结后）就是将所有的字符 a 或者所有的字符 b 汇集到一起。那么对于每种字符分阅读全文

posted @ 2025-10-27 01:18 Qiansui 阅读(24) 评论(0) 推荐(0)

2023ICPC南京 - A F G I

摘要：2023ICPC南京阅读全文

posted @ 2023-12-02 20:37 Qiansui 阅读(831) 评论(0) 推荐(0)

Educational Codeforces Round 157 (Rated for Div. 2) - D(01trie)

摘要：Educational Codeforces Round 157 (Rated for Div. 2) 阅读全文

posted @ 2023-11-30 00:40 Qiansui 阅读(25) 评论(0) 推荐(0)

2022ICPC西安 - C E F G J L

摘要：2022ICPC西安阅读全文

posted @ 2023-11-28 19:06 Qiansui 阅读(128) 评论(0) 推荐(0)

2022ICPC南京 - A I

摘要：2022ICPC南京阅读全文

posted @ 2023-11-28 11:56 Qiansui 阅读(118) 评论(0) 推荐(0)

Codeforces Round 910 (Div. 2) - D(思维) E(思维)

摘要：Codeforces Round 910 (Div. 2) 阅读全文

posted @ 2023-11-21 10:35 Qiansui 阅读(94) 评论(0) 推荐(0)

2021ICPC沈阳 - B E F J

摘要：2021ICPC沈阳阅读全文

posted @ 2023-11-16 15:38 Qiansui 阅读(79) 评论(0) 推荐(0)

2022ICPC沈阳 - C D F L

摘要：2023ICPC沈阳阅读全文

posted @ 2023-11-12 14:30 Qiansui 阅读(278) 评论(0) 推荐(0)

2022ICPC济南 - E K M

摘要：2022ICPC济南阅读全文

posted @ 2023-11-07 09:05 Qiansui 阅读(87) 评论(0) 推荐(0)

2022ICPC杭州 - C D F K

摘要：2022ICPC杭州站阅读全文

posted @ 2023-10-29 15:21 Qiansui 阅读(336) 评论(0) 推荐(1)

Codeforces Round 905 - div.3(A B C D E F)

摘要：Codeforces Round 905 阅读全文

posted @ 2023-10-23 12:03 Qiansui 阅读(346) 评论(0) 推荐(2)

Educational Codeforces Round 156 (Rated for Div. 2) - A B C(单调栈) D(思维) E(状压DP)

摘要：Educational Codeforces Round 156 (Rated for Div. 2) 阅读全文

posted @ 2023-10-10 20:53 Qiansui 阅读(59) 评论(0) 推荐(0)

Codeforces Round 902 Div. 2 - A B C(规律) D(思维暴力) E(toposort)

摘要：Codeforces Round 902 Div. 2 阅读全文

posted @ 2023-10-08 21:02 Qiansui 阅读(337) 评论(0) 推荐(1)

2023CCPC网络赛 - E(dfs)

摘要：2023CCPC网络赛阅读全文

posted @ 2023-10-05 23:40 Qiansui 阅读(441) 评论(0) 推荐(0)

Codeforces Round 901 (Div. 2) - A B C D(简单DP) E(状态压缩 + bfs + 位运算) F(概率DP)

摘要：Codeforces Round 901 (Div. 2) 阅读全文

posted @ 2023-10-04 21:34 Qiansui 阅读(187) 评论(1) 推荐(0)

Codeforces Round 900 (Div. 3) - A B C D(差分) E(静态区间查询 + 二分)

摘要：Codeforces Round 900 (Div. 3) 阅读全文

posted @ 2023-09-27 21:18 Qiansui 阅读(75) 评论(0) 推荐(0)

Educational Codeforces Round 123 - D(思维题)

摘要：D - 倒序考虑问题阅读全文

posted @ 2023-09-21 20:22 Qiansui 阅读(26) 评论(0) 推荐(0)

Codeforces Round 105 (Div. 2) - D. Bag of mice DP 或记忆化搜索求概率

摘要：Codeforces Round 105 (Div. 2) 摘记阅读全文

posted @ 2023-07-29 22:20 Qiansui 阅读(22) 评论(0) 推荐(0)

Codeforces Round 888 (Div. 3) - D(思维) E(toposort) F(位运算贪心)

摘要：Codeforces Round 888 (Div. 3) 赛后摘记阅读全文

posted @ 2023-07-26 20:24 Qiansui 阅读(53) 评论(0) 推荐(0)

Codeforces Round 882 (Div. 2) - C

摘要：cf摘记阅读全文

posted @ 2023-07-07 19:28 Qiansui 阅读(45) 评论(0) 推荐(0)