The 3n + 1 problem

模拟 · 数学 · 递归

The Blocks Problem

模拟 · 递归 · 栈

Ecological Bin Packing

字符串 · 枚举 · 深度优先搜索 DFS

Stacking Boxes

Arbitrage

The Skyline Problem

模拟 · 线段树 · 离散化

Fermat vs. Pythagoras

The Cat in the Hat

Maximum Sum

贪心 · 枚举 · 前缀和

SCUD Busters

计算几何 · 凸包 · 线段相交

Meta-Loopless Sorts

History Grading

Tree Summing

递归

Power of Cryptography

模拟

Simulation Wizardry

Climbing Trees

单向TSP Unidirectional TSP

动态规划 DP · 排序 · 最短路

The Postal Worker Rings Once

Mutant Flatworld Explorers

Greedy Gift Givers

煎饼 Stacks of Flapjacks

Pipe Fitters

树的层次遍历 Trees on the level

Searching Quickly

Following Orders

搜索 · 深度优先搜索 DFS · 拓扑排序

Numbering Paths

The Errant Physicist

模拟 · 字符串

纸牌游戏 "Accordian" Patience

Software CRC

字符串 · 递推 · 进制

困难的串 Krypton Factor

搜索 · 递归

Roman Roulette

模拟 · 数学

The Psychic Poker Player

模拟 · 枚举

Bumpy Objects

救济金发放 The Dole Queue

模拟 · 链表

Loglan-A Logical Language

No Rectangles

丑数 Ugly Numbers

枚举 · 优先队列 · 队列

Polygons

Street Numbers

Telephone Tangles

带宽 Bandwidth

枚举 · 剪枝

The Spot Game

模拟 · 字符串

Mouse Clicks

Orchard Trees

Student Grants

Gondwanaland Telecom

模拟

ID Codes

字符串 · 排序

Dollars

Anagram checker

Forests