[ABC350A] Past ABCs

[ABC350B] Dentist Aoki

[ABC350C] Sort

排序

[ABC350D] New Friends

并查集

[ABC350E] Toward 0

动态规划 DP · 期望

[ABC350F] Transpose

平衡树 · 分治

[ABC350G] Mediator

动态树 LCT · 根号分治 · 启发式合并

[ABC351A] The bottom of the ninth

[ABC351B] Spot the Difference

[ABC351C] Merge the balls

栈

[ABC351D] Grid and Magnet

搜索 · 广度优先搜索 BFS · 深度优先搜索 DFS

[ABC351E] Jump Distance Sum

差分

[ABC351F] Double Sum

树状数组

[ABC351G] Hash on Tree

动态树分治

[ABC352A] AtCoder Line

[ABC352B] Typing

双指针 two-pointer

[ABC352C] Standing On The Shoulders

贪心

[ABC352D] Permutation Subsequence

单调队列 · ST 表

[ABC352E] Clique Connect

生成树

[ABC352F] Estimate Order

搜索 · 状态合并

[ABC352G] Socks 3

快速数论变换 NTT

[ABC353A] Buildings

[ABC353B] AtCoder Amusement Park

模拟

[ABC353C] Sigma Problem

容斥原理

[ABC353D] Another Sigma Problem

数学 · 前缀和

[ABC353E] Yet Another Sigma Problem

字典树 Trie

[ABC353F] Tile Distance

数学 · 分类讨论

[ABC353G] Merchant Takahashi

动态规划 DP · 线段树 · 树状数组

[ABC354A] Exponential Plant

模拟

[ABC354B] AtCoder Janken 2

模拟 · 排序

[ABC354C] AtCoder Magics

模拟 · 排序

[ABC354D] AtCoder Wallpaper

数学 · 分类讨论

[ABC354E] Remove Pairs

状态合并

[ABC354F] Useless for LIS

动态规划 DP · 树状数组

[ABC354G] Select Strings

网络流 · Dilworth 定理

[ABC355A] Who Ate the Cake?

[ABC355B] Piano 2

排序

[ABC355C] Bingo 2

模拟 · 二分

[ABC355D] Intersecting Intervals

二分

[ABC355E] Guess the Sum

最短路

[ABC355F] MST Query

并查集 · 生成树 · 动态树 LCT

[ABC355G] Baseball

动态规划 DP · 凸完全单调性（wqs 二分）

[ABC356A] Subsegment Reverse

模拟

[ABC356B] Nutrients

模拟

[ABC356C] Keys

深度优先搜索 DFS

[ABC356D] Masked Popcount

位运算

[ABC356E] Max/Min

数学 · 枚举

[ABC356F] Distance Component Size Query

线段树 · 二分

[ABC356G] Freestyle

凸包

[ABC357A] Sanitize Hands

模拟