[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

[ABC065C] Reconciled?

[ABC065D] Built?

[ARC076E] Connected?

[ARC076F] Exhausted?

贪心 · 网络流 · 排序 · Hall 定理

[ABC066C] pushpush

[ABC066D] 11

组合数学

[ARC077E] guruguru

[ARC077F] SS

[ABC067C] Splitting Pile

[ABC067D] Fennec VS. Snuke

搜索 · 博弈论

[ARC078E] Awkward Response

[ARC078F] Mole and Abandoned Mine

[ABC068C] Cat Snuke and a Voyage

[ABC068D] Decrease (Contestant ver.)

构造

[ARC079E] Decrease (Judge ver.)

模拟 · 二分

[ARC079F] Namori Grundy

[ABC069C] 4-adjacent

[ABC069D] Grid Coloring

[ARC080E] Young Maids

[ARC080F] Prime Flip