MOBILE - Mobile

CFRAC - Continuous Fractions

MATRIOSH - Generalized Matrioshkas

EQDIV - Equidivisions

搜索

BROUL - Babylonian Roulette

UJ - Uncle Jack

QUILT - Little Quilt

POLYCODE - Polygon Encoder

AIBOHP - Aibohphobia

ANGELS - Angels and Devils

COMCB - Complete Chess Boards

FASHION - Fashion Shows

数学 · 排序

FAVDICE - Favorite Dice

期望

FPOLICE - Fool the Police

HUBULLU - Hubulullu

博弈论

MATSUM - Matrix Summation

树状数组

EIGHTS - Triple Fat Ladies

UPSUB - Up Subsequence

GSS1 - Can you answer these queries I

线段树 · 分治 · 前缀和 · 二区间合并（猫树分治）

CTRICK - Card Trick

SUDOKU - Sudoku

NSTEPS - Number Steps

TOE1 - Tic-Tac-Toe ( I )

TOE2 - Tic-Tac-Toe ( II )

JAVAC - Java vs C ++

模拟

DEADFR - Dead Fraction

MINCOUNT - Move To Invert

SORTBIT - Sorted bit squence

PALACE - Accomodate the palace

ORIGLIFE - Origin of Life

CNEASY - CN Tower (Easy)

CNHARD - CN Tower (Hard)

PNTBYNUM - Paint By Numbers

CFRAC2 - Continuous Fractions Again

SUMFOUR - 4 values whose sum is 0

搜索 · 二分 · 枚举

PARTSUM - Partial Sums

CHASE - A Chase In WonderLand

KPMATRIX - Matrix

KPMAZE - Maze

CZ_PROB1 - Summing to a Square Prime

枚举 · 素数判断,质数,筛法 · 分类讨论

CATM - The Cats and the Mouse

NGM - A Game with Numbers

GEOM - Geometry and a Square

FIRM - Goods

KPPOLY - Projections Of A Polygon

KPSUM - The Sum

数位 DP

KPEQU - Equation

PT07X - Vertex Cover

PT07Y - Is it a tree

图论 · 并查集 · 拓扑排序

PT07Z - Longest path in a tree

树的直径