WINDMILL - The Tall Windmills

PLATON - Platon and Socrates

BISHOPS - Bishops

CALLS - Calls

HARDQ - Hard Question

PHDISP - The Philosophical Dispute

EOPERA - Exchange Operations

ROADS - Roads

枚举 · 剪枝

SEQ - Recursive Sequence

POKER - Poker

MIXTURES - Mixtures

COINS - Bytelandian gold coins

LAZYCOWS - Lazy Cows

EXPEDI - Expedition

贪心 · 优先队列

AROUND - Around the world

LANDSCAP - Landscaping

HAN01 - Ha-noi!

递归 · 位运算

ACT - Alpha Centauri Tennis

IGARB - Ignore the Garbage

LISA - Pocket Money

PHIDIAS - Phidias

FARMER - Farmer

EMPODIA - Empodia

贪心 · 单调栈

CSTREET - Cobbled streets

MATH1 - Math I

ONEZERO - Ones and zeros

BOXES - Boxes

贪心 · 网络流 · 费用流

BENEFACT - The Benefactor

GREED - Greedy island

MATRIX - Count maximum matrices

QTREE - Query on a tree

线段树 · 最近公共祖先 LCA · 树链剖分

ACS - A concrete simulation

TAXI - Taxi

PERMUT2 - Ambiguous Permutations

BINGO - Bullshit Bingo

CHICAGO - 106 miles to Chicago

图论 · 最短路

DECORATE - Decorate the wall

EUROPEAN - European railroad tracks

FOOL - Any fool can do it

GAME - Game schedule required

HELP - Help the problem setter

TOURS - Travelling tours

MENU - Menu

HOSPITAL - Use of Hospital Facilities

BILLIARD - Billiard

RAILROAD - Railroads

SPIN - Spin

HEXAGON - Hexagon

ACODE - Alphacode

APRIME - Anti-prime Sequences