[ARC145A] AB Palindrome

[ARC145B] AB Game

[ARC145C] Split and Maximize

组合数学 · Catalan 数

[ARC145D] Non Arithmetic Progression Set

进制 · 构造

[ARC145E] Adjacent XOR

[ARC145F] Modulo Sum of Increasing Sequences

[ARC146A] Three Cards

[ARC146B] Plus and AND

[ARC146C] Even XOR

[ARC146D] >=<

[ARC146E] Simple Speed

动态规划 DP

[ARC146F] Simple Solitaire

[ARC147A] Max Mod Min

排序 · 队列 · STL

[ARC147B] Swap to Sort

[ARC147C] Min Diff Sum

[ARC147D] Sets Scores

数学 · 组合数学

[ARC147E] Examination

[ARC147F] Again ABC String

[ARC148A] mod M

[ARC148B] dp

[ARC148C] Lights Out on Tree

[ARC148D] mod M Game

博弈论

[ARC148E] ≥ K

[ARC148F] 998244353 → 1000000007

数论 · 构造 · Ad-hoc

[ARC149A] Repdigit Number

数学 · 枚举

[ARC149B] Two LIS Sum

[ARC149C] Avoid Prime Sum

[ARC149D] Simultaneous Sugoroku

并查集 · 平衡树 · 分块

[ARC149E] Sliding Window Sort

[ARC149F] Rational Number System

[ARC150A] Continuous 1

[ARC150B] Make Divisible

根号分治 · 整除分块

[ARC150C] Path and Subsequence

[ARC150D] Removing Gacha

[ARC150E] Weathercock

[ARC150F] Constant Sum Subsequence

[ARC151A] Equal Hamming Distances

[ARC151B] A < AP

[ARC151C] 01 Game

[ARC151D] Binary Representations and Queries

[ARC151E] Keep Being Substring

贪心 · 广度优先搜索 BFS

[ARC151F] RGB Card Game

[ARC152A] Seat Occupation

[ARC152B] Pass on Path

[ARC152C] Pivot

数学 · 数论

[ARC152D] Halftree

构造

[ARC152E] Xor Annihilation

[ARC152F] Attraction on Tree

贪心

[ARC153A] AABCDDEFE

数学 · 贪心

[ARC153B] Grid Rotations

数学 · 平衡树