[AGC018C] Coins

反悔贪心

[AGC018D] Tree and Hamilton Path

贪心

[AGC018E] Sightseeing Plan

组合数学 · 容斥原理

[AGC018F] Two Trees

图论建模 · 欧拉回路 · Ad-hoc

[AGC019A] Ice Tea Store

[AGC019B] Reverse and Compare

[AGC019C] Fountain Walk

[AGC019D] Shift and Flip

[AGC019E] Shuffle and Swap

[AGC019F] Yes or No

[AGC020A] Move and Win

[AGC020B] Ice Rink Game

递推 · 二分

[AGC020C] Median Sum

背包 DP · 位运算 · bitset

[AGC020D] Min Max Repetition

[AGC020E] Encoding Subsets

字符串 · 枚举 · 记忆化搜索 · 位运算

[AGC020F] Arcs on a Circle

动态规划 DP · 离散化 · 枚举

[AGC021A] Digit Sum 2

[AGC021B] Holes

[AGC021C] Tiling

构造

[AGC021D] Reversed LCS

区间 DP

[AGC021E] Ball Eat Chameleons

组合数学

[AGC021F] Trinity

动态规划 DP · 多项式 · 动态规划优化 · 快速傅里叶变换 FFT · 快速数论变换 NTT · Ad-hoc

[AGC022A] Diverse Word

[AGC022B] GCD Sequence

数学 · 最大公约数 gcd · 构造

[AGC022C] Remainder Game

动态规划 DP · 贪心

[AGC022D] Shopping

[AGC022E] Median Replace

动态规划 DP

[AGC022F] Checkers

动态规划 DP

[AGC023A] Zero-Sum Ranges

前缀和

[AGC023B] Find Symmetries

[AGC023C] Painting Machines

[AGC023D] Go Home

[AGC023E] Inversions

[AGC023F] 01 on Tree

贪心

[AGC024A] Fairness

[AGC024B] Backfront

[AGC024C] Sequence Growing Easy

[AGC024D] Isomorphism Freak

[AGC024E] Sequence Growing Hard

[AGC024F] Simple Subsequence Problem

动态规划 DP · 有限状态自动机

[AGC025A] Digits Sum

模拟

[AGC025B] RGB Coloring

[AGC025C] Interval Game

[AGC025D] Choosing Points

[AGC025E] Walking on a Tree

[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