Don't Exceed

math, probabilities

Tokitsukaze and Powers

number theory, probabilities

Combining Slimes

dp, math, matrices, probabilities

Kyoya and Train

dp, fft, graphs, math, probabilities

Astronomy

geometry, probabilities

Marek and Matching (hard version)

brute force, probabilities

Gold Experience

constructive algorithms, graphs, math, number theory, probabilities

Game Relics

math, probabilities

Mergesort Strikes Back

math, probabilities

Beautiful Bracket Sequence (hard version)

combinatorics, probabilities

Alice and the Cactus

dfs and similar, graphs, math, probabilities

Marek and Matching (easy version)

brute force, probabilities

Counting Skyscrapers

dp, math, probabilities

LCC

data structures, math, matrices, probabilities

A Trance of Nightfall

dp, geometry, matrices, probabilities

Bear and Chase

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

GCD Groups 2

greedy, number theory, probabilities

Helping People

dp, probabilities

Gosha is hunting

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

Marmots (hard)

math, probabilities

Computer Game

dp, greedy, math, probabilities

Random Ranking

dp, math, probabilities

DZY Loves Games

math, matrices, probabilities

T-shirt

dp, greedy, probabilities

Randomizer

combinatorics, geometry, probabilities

Serval and Bonus Problem

combinatorics, dp, math, probabilities

Tickets

combinatorics, math, probabilities

Game with Strings

bitmasks, dp, probabilities

Bingo!

combinatorics, math, probabilities

Ksusha and Square

geometry, math, probabilities, two pointers

Google Code Jam

dp, probabilities

Piglet's Birthday

dp, math, probabilities

Strongly Connected Tournament

dp, graphs, math, probabilities

Valera and Number

bitmasks, dp, math, probabilities

Nauuo and Pictures (hard version)

dp, probabilities

Memory and Casinos

data structures, math, probabilities

Bath Queue

combinatorics, dp, probabilities

Willem, Chtholly and Seniorious

data structures, probabilities

LRU

bitmasks, dp, math, probabilities

Help King

implementation, probabilities, trees

Darts

geometry, probabilities

Birthday

greedy, math, probabilities

Bear and Destroying Subtrees

dp, math, probabilities, trees

Maze

dfs and similar, dp, probabilities, trees

The Top Scorer

combinatorics, dp, math, probabilities

Interstellar battle

math, probabilities, trees

Expected Square Beauty

dp, math, probabilities

World of Darkraft - 2

dp, probabilities

Tree Queries

data structures, probabilities, trees

Cards

combinatorics, dp, math, number theory, probabilities

Intergalaxy Trips

probabilities, shortest paths

Beautiful Bracket Sequence (easy version)

combinatorics, dp, probabilities

Inversions After Shuffle

data structures, probabilities

Little Elephant and Broken Sorting

dp, math, probabilities

Ghd

brute force, math, probabilities

Colored Jenga

dfs and similar, dp, probabilities

Help Shrek and Donkey

dp, games, math, probabilities

Museum

math, matrices, probabilities

Gifts

combinatorics, dp, math, probabilities

Crossword Expert

combinatorics, dp, number theory, probabilities, two pointers

Eyes Closed

data structures, probabilities

Sonya and Informatics

combinatorics, dp, matrices, probabilities

Card Bag

dp, math, probabilities

Wilbur and Trees

dp, math, probabilities, sortings

Nauuo and Pictures (easy version)

dp, probabilities

Mushroom Gnomes - 2

binary search, data structures, probabilities, sortings

Name That Tune

dp, probabilities, two pointers

Gambling Nim

bitmasks, math, matrices, probabilities

Plane of Tanks: Duel

brute force, dp, math, probabilities

Half-decay tree

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

Pokermon League challenge

math, probabilities

Lost Root

interactive, probabilities

Inversions problem

dp, probabilities

Startup Funding

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

Square Table

constructive algorithms, math, probabilities

Famil Door and Roads

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

Broken robot

dp, probabilities

Beautiful Mirrors with queries

data structures, probabilities

Destiny

data structures, probabilities

DZY Loves FFT

probabilities

Kleofáš and the n-thlon

dp, math, probabilities

ZS and The Birthday Paradox

math, number theory, probabilities

Game on Tree

implementation, math, probabilities, trees

Castle

dp, greedy, probabilities, sortings, trees

Smart Cheater

data structures, math, probabilities

Barrels and boxes

brute force, combinatorics, math, number theory, probabilities

Little Artem and Random Variable

dp, implementation, math, probabilities

Hyakugoku and Ladders

dp, probabilities, shortest paths

Vasya and Magic Matrix

dp, math, probabilities

Steps to One

dp, math, number theory, probabilities

Inversion Expectation

dp, math, probabilities

Petya and Tree

binary search, dfs and similar, probabilities, sortings, trees

Alternating Tree

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

Little Elephant and Furik and Rubik

math, probabilities

New Year and Arbitrary Arrangement

dp, math, probabilities

Makoto and a Blackboard

dp, math, number theory, probabilities

Bombing

binary search, dp, probabilities

Third Month Insanity

dp, probabilities, trees

Playlist

math, probabilities, sortings

Something with XOR Queries

brute force, interactive, probabilities