[ABC257F] Teleporter Setting

图论 · 最短路

[ABC257G] Prefix Concatenation

字符串 · 动态规划 DP · 动态规划优化

[ABC257Ex] Dice Sum 2

[ABC258A] When?

[ABC258B] Number Box

[ABC258C] Rotation

[ABC258D] Trophy

[ABC258E] Packing Potatoes

模拟

[ABC258F] Main Street

[ABC258G] Triangle

[ABC258Ex] Odd Steps

[ABC259A] Growth Record

[ABC259B] Counterclockwise Rotation

[ABC259C] XX to XXX

[ABC259D] Circumferences

[ABC259E] LCM on Whiteboard

[ABC259F] Select Edges

动态规划 DP · 树形 DP

[ABC259G] Grid Card Game

[ABC259Ex] Yet Another Path Counting

[ABC260A] A Unique Letter

[ABC260B] Better Students Are Needed!

[ABC260C] Changing Jewels

[ABC260D] Draw Your Cards

[ABC260E] At Least One

[ABC260F] Find 4-cycle

[ABC260G] Scalene Triangle Area

[ABC260Ex] Colorfulness

[ABC261A] Intersection

[ABC261B] Tournament Result

[ABC261C] NewFolder(1)

[ABC261D] Flipping and Bonus

[ABC261E] Many Operations

[ABC261F] Sorting Color Balls

贪心 · 树状数组 · 离散化 · cdq 分治 · 排序

[ABC261G] Replace

[ABC261Ex] Game on Graph

[ABC262A] World Cup

[ABC262B] Triangle (Easier)

[ABC262C] Min Max Pair

[ABC262D] I Hate Non-integer Number

动态规划 DP

[ABC262E] Red and Blue Graph

图论 · 组合数学

[ABC262F] Erase and Rotate

[ABC262G] LIS with Stack

[ABC262Ex] Max Limited Sequence

动态规划 DP · 线段树 · 容斥原理

[ABC263A] Full House

[ABC263B] Ancestor

[ABC263C] Monotonically Increasing

[ABC263D] Left Right Operation

[ABC263E] Sugoroku 3

动态规划 DP · 数学 · 期望

[ABC263F] Tournament

动态规划 DP

[ABC263G] Erasing Prime Pairs