[ABC135D] Digits Parade

[ABC135E] Golf

贪心 · 构造

[ABC135F] Strings of Eternity

字符串 · 图论建模 · 哈希 hashing

[ABC136A] Transfer

[ABC136B] Uneven Numbers

[ABC136C] Build Stairs

[ABC136D] Gathering Children

[ABC136E] Max GCD

[ABC136F] Enclosed Points

[ABC137A] +-x

[ABC137B] One Clue

[ABC137C] Green Bin

[ABC137D] Summer Vacation

贪心 · 并查集 · 堆 · 排序

[ABC137E] Coins Respawn

最短路 · 负权环

[ABC137F] Polynomial Construction

[ABC138A] Red or Not

[ABC138B] Resistors in Parallel

[ABC138C] Alchemist

堆 · 排序

[ABC138D] Ki

[ABC138E] Strings of Impurity

[ABC138F] Coincidence

数位 DP

[ABC139A] Tenki

[ABC139B] Power Socket

数学

[ABC139C] Lower

[ABC139D] ModSum

[ABC139E] League

拓扑排序

[ABC139F] Engines

[ABC140A] Password

[ABC140B] Buffet

[ABC140C] Maximal Value

[ABC140D] Face Produces Unhappiness

[ABC140E] Second Sum

二分 · 组合数学 · ST 表 · 链表 · 单调栈

[ABC140F] Many Slimes

模拟 · 贪心

[ABC141A] Weather Prediction

[ABC141B] Tap Dance

[ABC141C] Attack Survival

[ABC141D] Powerful Discount Tickets

堆 · STL

[ABC141E] Who Says a Pun?

动态规划 DP · 二分 · 枚举 · 哈希 hashing

[ABC141F] Xor Sum 3

[ABC142A] Odds of Oddness

[ABC142B] Roller Coaster

[ABC142C] Go to School

[ABC142D] Disjoint Set of Common Divisors

[ABC142E] Get Everything

动态规划 DP · 状压 DP

[ABC142F] Pure

[ABC143A] Curtain

[ABC143B] TAKOYAKI FESTIVAL 2019

[ABC143C] Slimes

[ABC143D] Triangles

[ABC143E] Travel by Car