[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

[ABC375B] Traveling Takahashi Problem

模拟

[ABC375C] Spiral Rotation

模拟

[ABC375D] ABA

排列组合

[ABC375E] 3 Team Division

动态规划 DP

[ABC375F] Road Blocked

最短路

[ABC375G] Road Blocked 2

最短路

[ABC376A] Candy Button

[ABC376B] Hands on Ring (Easy)

模拟 · 数学

[ABC376C] Prepare Another Box

贪心 · 二分

[ABC376D] Cycle

搜索 · 广度优先搜索 BFS · 图遍历

[ABC376E] Max × Sum

贪心 · 优先队列

[ABC376F] Hands on Ring (Hard)

动态规划 DP

[ABC376G] Treasure Hunting

贪心 · 优先队列

[ABC377A] Rearranging ABC

[ABC377B] Avoid Rook Attack

模拟

[ABC377C] Avoid Knight Attack

模拟

[ABC377D] Many Segments 2

优先队列 · 双指针 two-pointer

[ABC377E] Permute K times 2

图论建模

[ABC377F] Avoid Queen Attack

容斥原理

[ABC377G] Edit to Match

动态规划 DP · 字典树 Trie

[ABC378A] Pairing

[ABC378B] Garbage Collection

模拟 · 数学

[ABC378C] Repeating

模拟

[ABC378D] Count Simple Paths

搜索 · 深度优先搜索 DFS