Game of Chance

math, probabilities

Laser Beams

*special problem, geometry, probabilities

Nastya and Bees

graphs, interactive, probabilities

Astronomy

geometry, probabilities

Grove

brute force, dfs and similar, dp, geometry, probabilities

Tokitsukaze and Powers

number theory, probabilities

Centroid Guess

interactive, probabilities, trees

Arithmancy (Medium)

constructive algorithms, interactive, probabilities, strings

Fugitive Frenzy

math, probabilities

Help King

implementation, probabilities, trees

Marmots (hard)

math, probabilities

Colored Jenga

dfs and similar, dp, probabilities

Nezzar and Chocolate Bars

combinatorics, fft, math, probabilities

Don't Exceed

math, probabilities

Darts

geometry, probabilities

Alice and the Cactus

dfs and similar, graphs, math, probabilities

School Clubs

dp, fft, math, number theory, probabilities

Marek and Matching (easy version)

brute force, probabilities

Marek and Matching (hard version)

brute force, probabilities

Old Mobile

combinatorics, dp, probabilities

Counting Skyscrapers

dp, math, probabilities

Combining Slimes

dp, math, matrices, probabilities

A Trance of Nightfall

dp, geometry, matrices, probabilities

Ksusha and Square

geometry, math, probabilities, two pointers

Roads in E City

interactive, math, probabilities, trees

Median Queries

constructive algorithms, interactive, probabilities

Clacking Balls

combinatorics, math, probabilities

Bingo!

combinatorics, math, probabilities

Frequency Mismatch (Hard Version)

binary search, data structures, dfs and similar, hashing, probabilities, trees

Plane of Tanks: Duel

brute force, dp, math, probabilities

Infinite Game

brute force, combinatorics, dp, games, probabilities

Bear and Chase

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

Random Ranking

dp, math, probabilities

Gold Experience

constructive algorithms, graphs, math, number theory, probabilities

Triangle Platinum?

brute force, combinatorics, implementation, interactive, math, probabilities

Game of Questions

bitmasks, combinatorics, dp, fft, math, probabilities

DIY Tree

graphs, greedy, math, probabilities

Google Code Jam

dp, probabilities

Frequency Mismatch (Easy Version)

binary search, data structures, divide and conquer, hashing, probabilities, trees

Fading into Fog

geometry, interactive, math, probabilities

Mergesort Strikes Back

math, probabilities

Computer Game

dp, greedy, math, probabilities

Guess the String

constructive algorithms, interactive, probabilities

Card Guessing

combinatorics, dp, probabilities

Tubular Bells

interactive, math, number theory, probabilities

DZY Loves Games

math, matrices, probabilities

T-shirt

dp, greedy, probabilities

Paper Cutting Again

combinatorics, probabilities

Pokermon League challenge

math, probabilities

Expected Components

combinatorics, math, number theory, probabilities

Randomizer

combinatorics, geometry, probabilities

Gambling Nim

bitmasks, math, matrices, probabilities

Party Organization

brute force, math, probabilities

The Mind

constructive algorithms, interactive, probabilities

Help Shrek and Donkey

dp, games, math, probabilities

Half-decay tree

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

Is It Rated?

greedy, interactive, math, probabilities

Gifts

combinatorics, dp, math, probabilities

Birthday

greedy, math, probabilities

Expecting Trouble

*special problem, probabilities

Petya and Tree

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

Kyoya and Train

dp, fft, graphs, math, probabilities

LCC

data structures, math, matrices, probabilities

Tenzing and Random Real Numbers

bitmasks, dp, graphs, math, probabilities

Piglet's Birthday

dp, math, probabilities

Startup Funding

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

Mark and the Online Exam

bitmasks, constructive algorithms, interactive, probabilities

Battalion Strength

data structures, divide and conquer, probabilities

Bear and Destroying Subtrees

dp, math, probabilities, trees

Chemistry Lab

dp, geometry, probabilities

Bombing

binary search, dp, probabilities

Memory and Casinos

data structures, math, probabilities

Strongly Connected Tournament

dp, graphs, math, probabilities

Olha and Igor

interactive, probabilities, trees

James and the Chase

dfs and similar, graphs, probabilities, trees

Smart Cheater

data structures, math, probabilities

Game Relics

math, probabilities

Inversions problem

dp, probabilities

Interstellar battle

math, probabilities, trees

Museum

math, matrices, probabilities

Jellyfish and Miku

divide and conquer, dp, math, probabilities

World of Darkraft - 2

dp, probabilities

Castle

dp, greedy, probabilities, sortings, trees

ZS Shuffles Cards

combinatorics, dp, math, probabilities

Valera and Number

bitmasks, dp, math, probabilities

Wilbur and Trees

dp, math, probabilities, sortings

Lost Root

interactive, probabilities

Mighty Rock Tower

brute force, combinatorics, dp, math, probabilities

Maze

dfs and similar, dp, probabilities, trees

A Random Code Problem

combinatorics, dp, math, number theory, probabilities

Find a Gift

binary search, interactive, probabilities

BinCoin

binary search, divide and conquer, hashing, implementation, probabilities, trees

Tickets

combinatorics, math, probabilities

Bingo

bitmasks, combinatorics, dp, math, probabilities

Serval and Bonus Problem

combinatorics, dp, math, probabilities

Circular Dungeon

greedy, math, probabilities

Square Table

constructive algorithms, math, probabilities

Random Walk

dp, graphs, math, probabilities, trees

Dark Assembly

brute force, probabilities

Nauuo and Pictures (hard version)

dp, probabilities