Non-decimal sum

*special problem

The Beaver's Problem - 3

The Beaver's Problem - 3

The Beaver's Problem - 3

Game with Two Trees

Euclidean Distance

*special problem

Battleship

*special problem, dfs and similar, implementation

Truncatable primes

*special problem

The Beaver's Problem - 3

Date Change

*special problem

Divisibility Check

*special problem

The Beaver's Problem - 3

Levenshtein distance

*special problem

Jumping frogs

*special problem

Number Deletion Game

*special problem, dp, games, greedy

Counting Fridays

*special problem

Points in triangle

*special problem, geometry

Triskaidekaphobia

*special problem

Maximal Difference

*special problem

Array Sum

*special problem

Mobile Communications

Road Problem

graphs

Neural Network Problem

*special problem, binary search, greedy

Domain

*special problem, expression parsing

Double Permutation Inc.

*special problem, binary search, greedy

Teams

*special problem, binary search, greedy, math

Beaver's Calculator 1.0

greedy

Significant Cups

*special problem, binary search, data structures, two pointers

Chess Match

*special problem

Dune II: Battle For Arrakis

*special problem, data structures, greedy, math

The Beaver's Problem - 2

Magic Squares

Segments

data structures

Bars

*special problem, binary search

Smart Beaver and Resolving Collisions

Amusement Park

*special problem, ternary search

Property

greedy, sortings

Pixels

constructive algorithms, math

Smart Boy

dp, games, strings

Stepan's Series

*special problem, dp

Game with Points

dp, graphs, implementation, shortest paths

Cowboys

combinatorics, dp, math

White, Black and White Again

combinatorics, number theory

Writing a Song

brute force, dp, strings

Zigzag

data structures

Marmots (easy)

math

Optimizer

data structures, greedy, sortings

Context Advertising

dp, two pointers

Mad Joe

brute force

Ancient Berland Hieroglyphs

two pointers

Diverging Directions

data structures, dfs and similar, trees

Mice

greedy, two pointers

Dormitory

dp, implementation

Playing with Superglue

combinatorics, constructive algorithms

New York Hotel

greedy, math

Fractal Detector

dp, hashing

The Wall (hard)

dp

Morning run

binary search, math, two pointers

Xenia and Dominoes

bitmasks, dfs and similar, dp

Ivan the Fool VS Gorynych the Dragon

dp, games, graphs

Piet

implementation

Periodical Numbers

combinatorics, dp, number theory

Need For Brake

binary search, greedy, sortings

Crosses

brute force, implementation

Director

constructive algorithms, greedy

Triminoes

constructive algorithms, greedy

Moon Craters

dp, sortings

The Light Square

2-sat, dfs and similar, greedy

Mirror Box

geometry, implementation

Harvester

implementation

More Reclamation

games

Dominoes

dfs and similar, graphs

Graph

*special problem, binary search, dfs and similar, dp, math, ternary search

T-decomposition

dfs and similar, graphs, greedy, trees

Mushroom Strife

brute force, dfs and similar

Send the Fool Further! (medium)

dp, trees

Martian Luck

math, number theory

Collisions

brute force, implementation, math

Cheese Board

Game

implementation

Conveyor

sortings, two pointers

Team Arrangement

constructive algorithms, greedy, implementation

Diverse Substrings

dp, strings, two pointers

Bombing

binary search, dp, probabilities

Merging Two Decks

constructive algorithms, greedy

Present to Mom

binary search, two pointers

Crossword

implementation

Broken Monitor

brute force, constructive algorithms, greedy, implementation

Constants in the language of Shakespeare

constructive algorithms, dp, greedy

Without Text

*special problem

Sweets Game

bitmasks, dfs and similar, dp, games, implementation

Petya and Post

data structures, dp

Lucky Sorting

constructive algorithms, sortings

C*++ Calculations

expression parsing, greedy

Arrow

geometry

Polycarp's Picture Gallery

constructive algorithms, greedy

Tanya and Colored Candies

*special problem, dp

Parade

data structures, sortings

2048

bitmasks, dp

Vectors

implementation, math