龍木

分类

c#(1) codeforces(130) dp(2) map(2) RMQ(1) 一些神奇的东西(1) 三分(1) 前缀和(1) 区间dp(1) 博弈(2) 大数(1) 平面几何(1) 并查集(1) 快数幂(1) 总结(1) 打表(1) 找规律(4) 数学(8) 暴力(1) 最小公约数(1) 最小生成树(1) 未归档(31) 杭电(4) 浅谈(8) 深度优先搜索(1) 牛客(10) 组合数(1) 网络流最大流(2) 题解(3)

/ 注册

全部文章（共613篇）

D. Minimum Triangulation

链接：https://codeforces.ml/contest/1140/problem/D You are given a regular polygon with nn vertices labeled from 11 to nn in counter-clockwise order. Th...

2020-05-28

0 463

E1. String Coloring (easy version)

链接：https://codeforces.ml/contest/1296/problem/E1 This is an easy version of the problem. The actual problems are different, but the easy version is a...

2020-05-28

0 581

E2. String Coloring (hard version)

链接：https://codeforces.ml/contest/1296/problem/E2 This is a hard version of the problem. The actual problems are different, but the easy version is al...

2020-05-28

0 407

C 矩阵消除游戏

链接：https://ac.nowcoder.com/acm/contest/4090/C 牛妹在玩一个名为矩阵消除的游戏，矩阵的大小是{n}n行{m}m列，第{i}i行第{j}j列的单元格的权值为a_{i,j}ai,j，牛妹可以进行{k}k个回合的游戏，在每个回合，牛妹可以选择一行或者选择一列...

2020-05-28

0 444

B. Journey Planning

链接：https://codeforces.ml/contest/1321/problem/B Tanya wants to go on a journey across the cities of Berland. There are nn cities situated along the m...

2020-05-28

0 351

C. Remove Adjacent

链接：https://codeforces.ml/contest/1321/problem/C You are given a string ss consisting of lowercase Latin letters. Let the length of ss be |s||s|. You ...

2020-05-28

0 372

浅谈博弈论

写这个类型博客的目的就是想总结一下某个专题的知识点，方便以后比赛前复习，由于太菜，如有错误，还请斧正。说到博弈论，个人认为这应该是ACM中最有趣的题型，而且往往博弈题要不很简单要不很难（比如2019ccpc秦皇岛的树上博弈）在这里就简单讲一下博弈题细分的几种类型以及解法（其实在此之前本菜鸡对...

2020-05-28

0 445

C. Kuroni and Impossible Calculation

链接：https://codeforces.ml/contest/1305/problem/C To become the king of Codeforces, Kuroni has to solve the following problem. He is given nn numbers ...

2020-05-28

0 734

C. Primitive Primes

链接：https://codeforces.ml/contest/1316/problem/C It is Professor R's last class of his teaching career. Every time Professor R taught a class, he gave...

2020-05-28

0 654

B. Count Subrectangles

链接：https://codeforces.ml/contest/1323/problem/B You are given an array aa of length nn and array bb of length mm both consisting of only integers 00 ...

2020-05-28

0 521