[ABC307F] Virus 2

[ABC307G] Approximate Equalization

[ABC307Ex] Marquee

[ABC308A] New Scheme

模拟

[ABC308B] Default Price

模拟

[ABC308C] Standings

[ABC308D] Snuke Maze

[ABC308E] MEX

枚举 · 前缀和

[ABC308F] Vouchers

贪心

[ABC308G] Minimum Xor Pair Query

[ABC308Ex] Make Q

[ABC309A] Nine

[ABC309B] Rotate

[ABC309C] Medicine

[ABC309D] Add One Edge

[ABC309E] Family and Insurance

[ABC309F] Box in Box

线段树 · 树状数组 · 树套树

[ABC309G] Ban Permutation

[ABC309Ex] Simple Path Counting Problem

[ABC310A] Order Something Else

[ABC310B] Strictly Superior

[ABC310C] Reversible

[ABC310D] Peaceful Teams

[ABC310E] NAND repeatedly

[ABC310F] Make 10 Again

[ABC310G] Takahashi And Pass-The-Ball Game

[ABC310Ex] Negative Cost

[ABC311A] First ABC

模拟

[ABC311B] Vacation Together

模拟

[ABC311C] Find it!

基环树

[ABC311D] Grid Ice Floor

广度优先搜索 BFS

[ABC311E] Defect-free Squares

动态规划 DP · 前缀和

[ABC311F] Yet Another Grid Task

动态规划 DP

[ABC311G] One More Grid Task

枚举 · 单调栈

[ABC311Ex] Many Illumination Plans

[ABC312A] Chord

模拟

[ABC312B] TaK Code

模拟 · 枚举

[ABC312C] Invisible Hand

贪心 · 枚举

[ABC312D] Count Bracket Sequences

动态规划 DP

[ABC312E] Tangency of Cuboids

枚举

[ABC312F] Cans and Openers

贪心 · 枚举

[ABC312G] Avoid Straight Line

树论

[ABC312Ex] snukesnuke

哈希 hashing · KMP 算法 · 均摊分析 · 调和级数

[ABC313A] To Be Saikyo

模拟

[ABC313B] Who is Saikyo?

枚举

[ABC313C] Approximate Equalization 2

贪心

[ABC313D] Odd or Even

构造

[ABC313E] Duplicate

递推

[ABC313F] Flip Machines

根号分治

[ABC313G] Redistribution of Piles

类欧几里得算法