Ads

Morse Code

Porto Vs. Benfica

Mascot Naming

字符串 · 贪心

A Very Long Hike

Statues

Pinball

The Ultimate Wine Tasting Event

Amusement Park Rides

Was there an Array?

贪心

Set of Strangers

贪心 · 连通块

Beautiful Sequence

数学 · 组合数学 · 前缀和

Palindrome Shuffle

字符串 · 贪心 · 二分

A, B, AB and BA

字符串 · 贪心

Graph Inclusion

线段树 · 并查集 · 线段树分治

FizzBuzz Remixed

数论

Robot Program

模拟 · 数学

Limited Repainting

贪心 · 二分

Tree Jumps

动态规划 DP · 广度优先搜索 BFS · 深度优先搜索 DFS · 树的遍历

Game with Binary String

博弈论 · 线段树

Friends and Pizza

集合幂级数，子集卷积 · 状压 DP

The Play Never Ends

数学

Perfecto

数学 · 构造

Trapmigiano Reggiano

搜索 · 贪心 · 树的遍历

Infinite Sequence (Hard Version)

位运算

Infinite Sequence (Easy Version)

位运算

LeaFall

树论

Towering Arrays

线段树 · 二分 · 平衡树

New World, New Me, New Array

数学

Having Been a Treasurer in the Past, I Help Goblins Deceive

排列组合

Creating Keys for StORages Has Become My Main Skill

贪心 · 位运算 · 构造

For Wizards, the Exam Is Easy, but I Couldn't Handle It

数学 · 贪心 · 枚举

Do You Love Your Hero and His Two-Hit Multi-Target Attacks?

数学 · 构造

Goodbye, Banker Life

排列组合 · 位运算

I've Been Flipping Numbers for 300 Years and Calculated the Sum

根号分治

Draw a Square

数学 · 平面几何

The Third Side

数学 · 贪心

XOR and Triangle

位运算 · 构造

Counting Points

数学 · 枚举

Empty Triangle

随机化

Counting Necessary Nodes

分治

Game With Triangles: Season 2

区间 DP

To Zero

数学 · 贪心

Array Recoloring

贪心

Two Colors

二分

Equalization

动态规划 DP · 背包 DP

XOR Matrix

数位 DP · 组合数学 · 位运算

Beautiful Sequence Returns

线段树

Breach of Faith

数学 · 贪心

Finding OR Sum

位运算 · 构造