[ARC065F] シャッフル

[ABC050C] Lining Up

[ABC050D] Xor Sum

数学 · 递推 · 进制

[ARC066E] Addition and Subtraction Hard

动态规划 DP · 贪心 · 前缀和

[ARC066F] Contest with Drinks Hard

动态规划 DP · 分治 · 斜率优化

[ABC052C] Factors of Factorial

[ABC052D] Walk and Teleport

[ARC067E] Grouping

动态规划 DP

[ARC067F] Yakiniku Restaurants

[ABC053C] X: Yet Another Die Game

[ABC053D] Card Eater

[ARC068E] Snuke Line

[ARC068F] Solitaire

动态规划 DP · 组合数学

[ABC055C] Scc Puzzle

[ABC055D] Menagerie

构造

[ARC069E] Frequency

[ARC069F] Flags

线段树 · 2-SAT · 强连通分量 · 分块

[ABC056C] Go Home

[ABC056D] No Need

[ARC070E] NarrowRectangles

动态规划 DP · 斜率维护技巧 slope trick

[ARC070F] HonestOrUnkind

构造 · Ad-hoc · 单调栈

[ABC058C] 怪文書

[ABC058D] 井井井

[ARC071E] TrBBnsformBBtion

[ARC071F] Infinite Sequence

[ABC059C] Sequence

[ABC059D] Alice&Brown

[ARC072E] Alice in linear land

[ARC072F] Dam

单调队列 · 概率论 · 队列

[ABC060C] Sentou

[ABC060D] Simple Knapsack

[ARC073E] Ball Coloring

[ARC073F] Many Moves

动态规划 DP · 线段树

[ABC062C] Chocolate Bar

[ABC062D] 3N Numbers

[ARC074E] RGB Sequence

[ARC074F] Lotus Leaves

[ABC063C] Bugged

[ABC063D] Widespread

[ARC075E] Meaningful Mean

树状数组 · 排序

[ARC075F] Mirrored

深度优先搜索 DFS · 剪枝

[ABC065C] Reconciled?

[ABC065D] Built?

贪心 · 生成树

[ARC076E] Connected?

[ARC076F] Exhausted?

贪心 · 线段树 · 网络流 · 排序 · 扫描线 · Hall 定理

[ABC066C] pushpush

[ABC066D] 11

组合数学

[ARC077E] guruguru

[ARC077F] SS

[ABC067C] Splitting Pile