[AGC025E] Walking on a Tree

并查集 · 图论建模 · 欧拉回路 · 最近公共祖先 LCA · 构造

[AGC025F] Addition and Andition

[AGC026A] Colorful Slimes 2

[AGC026B] rng_10s

[AGC026C] String Coloring

搜索 · 折半搜索 meet in the middle

[AGC026D] Histogram Coloring

动态规划 DP · 笛卡尔树

[AGC026E] Synchronized Subsequence

[AGC026F] Manju Game

动态规划 DP · 贪心 · 博弈论 · 二分 · 记忆化搜索

[AGC027A] Candy Distribution Again

贪心

[AGC027B] Garbage Collector

[AGC027C] ABland Yard

[AGC027D] Modulo Matrix

[AGC027E] ABBreviate

[AGC027F] Grafting

[AGC028A] Two Abbreviations

数学

[AGC028B] Removing Blocks

数学

[AGC028C] Min Cost Cycle

[AGC028D] Chords

区间 DP

[AGC028E] High Elements

[AGC028F] Reachable Cells

[AGC028F2] Reachable Cells

[AGC029A] Irreversible operation

[AGC029B] Powers of two

[AGC029C] Lexicographic constraints

[AGC029D] Grid game

贪心

[AGC029E] Wandering TKHS

[AGC029F] Construction of a tree

图论建模 · 二分图 · 构造

[AGC030A] Poisonous Cookies

贪心

[AGC030B] Tree Burning

[AGC030C] Coloring Torus

[AGC030D] Inversion Sum

[AGC030E] Less than 3

[AGC030F] Permutation and Minimum

动态规划 DP · 组合数学

[AGC031A] Colorful Subsequence

排列组合

[AGC031B] Reversi

动态规划 DP

[AGC031C] Differ by 1 Bit

构造

[AGC031D] A Sequence of Permutations

置换 · Ad-hoc

[AGC031E] Snuke the Phantom Thief

费用流

[AGC031F] Walk on Graph

并查集 · 数论

[AGC032A] Limited Insertion

贪心

[AGC032B] Balanced Neighbors

图论 · 构造

[AGC032C] Three Circuits

欧拉回路 · 分类讨论

[AGC032D] Rotation Sort

动态规划 DP · 线段树

[AGC032E] Modulo Pairing

贪心 · 二分

[AGC032F] One Third

数学 · 微积分 · 积分 · 定积分

[AGC033A] Darker and Darker

广度优先搜索 BFS

[AGC033B] LRUD Game

贪心 · 博弈论

[AGC033C] Removing Coins

博弈论 · 树的直径

[AGC033D] Complexity

动态规划 DP · 动态规划优化

[AGC033E] Go around a Circle

动态规划 DP · 生成函数