Kuroni and the Punishment

Kuroni and Antihype

Kuroni the Private Tutor

Cow and Haybales

Cow and Friend

Cow and Message

Cow and Fields

图论 · 二分 · 树状数组 · 优先队列 · 最短路

Cow and Treats

Cow and Vacation

倍增

Cow and Exercise

Recommendations

Double Elimination

Au Pont Rouge

Tourism

随机化

Strange Function

Bad Cryptography

Add Odd or Subtract Even

WeirdSort

Perform the Combo

Three Integers

Construct the Binary Tree

贪心 · 构造

Moving Points

Two Regular Polygons

Bogosort

Adding Powers

Count the Arrays

组合数学

Array Shrinking

动态规划 DP · 区间 DP

Attack on Red Kingdom

Autocompletion

Fast Food Restaurant

Different Rules

Skyscrapers (hard version)

单调栈

Skyscrapers (easy version)

Happy New Year

离散化 · 位运算 · 状压 DP

Concatenation with intersection

Dead Pixel

Homecoming

Restoring Permutation

Grade Allocation

String Modification

Primitive Primes

Nash Matrix

Team Building

动态规划 DP · 贪心 · 状压 DP

Battalion Strength

线段树

Journey Planning

Navigation System

World of Darkraft: Battle for Azathoth

Reachable Strings

Treeland and Viruses

图论 · 最短路 · 虚树

Blocks and Sensors