[ABC368A] Cut

[ABC368B] Decrease 2 max elements

[ABC368C] Triple Attack

数学

[ABC368D] Minimum Steiner Tree

深度优先搜索 DFS

[ABC368E] Train Delay

堆 · 差分约束

[ABC368F] Dividing Game

博弈论 · 数论

[ABC368G] Add and Multiply Queries

线段树 · 树状数组

[ABC369A] 369

[ABC369B] Piano 3

[ABC369C] Count Arithmetic Subarrays

数学 · 递推

[ABC369D] Bonus EXP

动态规划 DP

[ABC369E] Sightseeing Tour

最短路

[ABC369F] Gather Coins

动态规划 DP · 树状数组

[ABC369G] As far as possible

贪心 · 线段树 · 树链剖分

[ABC370A] Raise Both Hands

模拟

[ABC370B] Binary Alchemy

模拟

[ABC370C] Word Ladder

贪心

[ABC370D] Cross Explosion

模拟 · 线段树 · 二分 · 树状数组 · 根号分治 · STL

[ABC370E] Avoid K Partition

动态规划 DP

[ABC370F] Cake Division

倍增 · 二分

[ABC370G] Divisible by 3

数论 · 素数判断

[ABC371A] Jiro

[ABC371B] Taro

模拟

[ABC371C] Make Isomorphic

搜索 · 深度优先搜索 DFS

[ABC371D] 1D Country

离散化 · 前缀和 · 差分

[ABC371E] I Hate Sigma Problems

排列组合

[ABC371F] Takahashi in Narrow Road

线段树 · 二分

[ABC371G] Lexicographically Smallest Permutation

贪心 · 数论

[ABC372A] delete .

[ABC372B] 3^A

进制

[ABC372C] Count ABC Again

模拟

[ABC372D] Buildings

单调栈

[ABC372E] K-th Largest Connected Components

并查集 · 启发式合并

[ABC372F] Teleporting Takahashi 2

动态规划 DP

[ABC372G] Ax + By < C

凸包 · 半平面交 · 类欧几里得算法

[ABC373A] September

[ABC373B] 1D Keyboard

模拟

[ABC373C] Max Ai+Bj

模拟

[ABC373D] Hidden Weights

搜索 · 图遍历

[ABC373E] How to Win the Election

贪心 · 二分

[ABC373F] Knapsack with Diminishing Values

动态规划 DP · 贪心 · 调和级数

[ABC373G] No Cross Matching

贪心 · 分治 · 二分图 · 费用流

[ABC374A] Takahashi san 2

[ABC374B] Unvarnished Report

字符串

[ABC374C] Separated Lunch

深度优先搜索 DFS

[ABC374D] Laser Marking

深度优先搜索 DFS

[ABC374E] Sensor Optimization Dilemma 2

数学 · 二分

[ABC374F] Shipping

动态规划 DP · 动态规划优化

[ABC374G] Only One Product Name

强连通分量 · 二分图 · Floyd 算法

[ABC375A] Seats