Tokitsukaze and Powers

number theory, probabilities

Don't Exceed

math, probabilities

Astronomy

geometry, probabilities

Combining Slimes

dp, math, matrices, probabilities

Gold Experience

constructive algorithms, graphs, math, number theory, probabilities

Marek and Matching (hard version)

brute force, probabilities

Mergesort Strikes Back

math, probabilities

Slime and Biscuits

math, probabilities

Kyoya and Train

dp, fft, graphs, math, probabilities

Marek and Matching (easy version)

brute force, probabilities

Computer Game

dp, greedy, math, probabilities

LCC

data structures, math, matrices, probabilities

Nastya and Bees

graphs, interactive, probabilities

Alice and the Cactus

dfs and similar, graphs, math, probabilities

Random Ranking

dp, math, probabilities

Game Relics

math, probabilities

ZS Shuffles Cards

combinatorics, dp, math, probabilities

James and the Chase

dfs and similar, graphs, probabilities, trees

Gosha is hunting

brute force, data structures, dp, flows, math, probabilities, sortings

Bear and Chase

brute force, dfs and similar, graphs, implementation, math, probabilities

Beautiful Bracket Sequence (hard version)

combinatorics, probabilities

GCD Groups 2

greedy, number theory, probabilities

Ghd

brute force, math, probabilities

Marmots (hard)

math, probabilities

Counting Skyscrapers

dp, math, probabilities

DZY Loves Games

math, matrices, probabilities

Google Code Jam

dp, probabilities

Battalion Strength

data structures, divide and conquer, probabilities

Randomizer

combinatorics, geometry, probabilities

Strongly Connected Tournament

dp, graphs, math, probabilities

Darts

geometry, probabilities

A Trance of Nightfall

dp, geometry, matrices, probabilities

Help Shrek and Donkey

dp, games, math, probabilities

Bingo!

combinatorics, math, probabilities

Ksusha and Square

geometry, math, probabilities, two pointers

T-shirt

dp, greedy, probabilities

Birthday

greedy, math, probabilities

Bear and Destroying Subtrees

dp, math, probabilities, trees

Museum

math, matrices, probabilities

World of Darkraft - 2

dp, probabilities

Good Contest

combinatorics, dp, probabilities

Tree Queries

data structures, probabilities, trees

Intergalaxy Trips

probabilities, shortest paths

X-OR

bitmasks, constructive algorithms, divide and conquer, interactive, probabilities

Piglet's Birthday

dp, math, probabilities

Gifts

combinatorics, dp, math, probabilities

Circular Dungeon

greedy, math, probabilities

Find a Gift

binary search, interactive, probabilities

Serval and Bonus Problem

combinatorics, dp, math, probabilities

Nauuo and Pictures (hard version)

dp, probabilities

Helping People

dp, probabilities

Beautiful Bracket Sequence (easy version)

combinatorics, dp, probabilities

Game with Strings

bitmasks, dp, probabilities

Cards

combinatorics, dp, math, number theory, probabilities

Little Elephant and Broken Sorting

dp, math, probabilities

Willem, Chtholly and Seniorious

data structures, probabilities

Colored Jenga

dfs and similar, dp, probabilities

Half-decay tree

data structures, divide and conquer, dp, math, probabilities

Maze

dfs and similar, dp, probabilities, trees

The Top Scorer

combinatorics, dp, math, probabilities

Memory and Casinos

data structures, math, probabilities

Expected Square Beauty

dp, math, probabilities

Three Occurrences

data structures, hashing, probabilities, two pointers

Destiny

data structures, probabilities

Kuroni and the Punishment

math, number theory, probabilities

Gambling Nim

bitmasks, math, matrices, probabilities

Plane of Tanks: Duel

brute force, dp, math, probabilities

Valera and Number

bitmasks, dp, math, probabilities

Pokermon League challenge

math, probabilities

Lost Root

interactive, probabilities

Inversions problem

dp, probabilities

Tickets

combinatorics, math, probabilities

Startup Funding

binary search, constructive algorithms, data structures, probabilities, two pointers

Crossword Expert

combinatorics, dp, number theory, probabilities, two pointers

Inversions After Shuffle

data structures, probabilities

Square Table

constructive algorithms, math, probabilities

Broken robot

dp, math, probabilities

Little Artem and Random Variable

dp, implementation, math, probabilities

Beautiful Mirrors with queries

data structures, probabilities

Expected Damage

binary search, combinatorics, probabilities

LRU

bitmasks, dp, math, probabilities

Name That Tune

dp, probabilities, two pointers

Castle

dp, greedy, probabilities, sortings, trees

Eyes Closed

data structures, probabilities

Wilbur and Trees

dp, math, probabilities, sortings

Sonya and Informatics

combinatorics, dp, matrices, probabilities

Nauuo and Pictures (easy version)

dp, probabilities

Famil Door and Roads

combinatorics, data structures, dfs and similar, dp, probabilities, trees

Card Bag

dp, math, probabilities

Barrels and boxes

brute force, combinatorics, math, number theory, probabilities

Tourism

dp, graphs, probabilities

DZY Loves FFT

probabilities

Hyakugoku and Ladders

dp, probabilities, shortest paths

Vasya and Magic Matrix

dp, math, probabilities

Alternating Tree

combinatorics, dfs and similar, divide and conquer, dp, probabilities, trees

Kleofáš and the n-thlon

dp, math, probabilities

Inversion Expectation

dp, math, probabilities

Steps to One

dp, math, number theory, probabilities

ZS and The Birthday Paradox

math, number theory, probabilities

Help King

implementation, probabilities, trees