Bear and String Distance

greedy, strings

New Skateboard

dp

Cards

constructive algorithms, dp, math

K-special Tables

constructive algorithms, implementation

War of the Corporations

constructive algorithms, greedy, strings

Making a String

greedy, sortings

Wet Shark and Bishops

combinatorics, implementation

Pearls in a Row

greedy

Guess the Permutation

constructive algorithms

Chocolate

combinatorics

Gena's Code

implementation, math

Link/Cut Tree

brute force, implementation

Replace To Make Regular Bracket Sequence

data structures, expression parsing, math

HDD is Outdated Technology

implementation, math

The Text Splitting

brute force, implementation, strings

New Year and Domino

dp, implementation

New Year and Old Property

bitmasks, brute force, implementation

Vika and Squares

constructive algorithms, implementation

Load Balancing

implementation, math

The Best Gift

constructive algorithms, implementation

Hamming Distance Sum

combinatorics, strings

Magic Spheres

implementation

More Cowbell

binary search, greedy

Approximating a Constant Range

dp, implementation, two pointers

Two Bases

brute force, implementation

Queries about less or equal elements

binary search, data structures, sortings, two pointers

Spongebob and Joke

implementation

Queries on a String

implementation, strings

Wilbur and Array

greedy, implementation

Wilbur and Swimming Pool

geometry, implementation

2Char

brute force, implementation

The Monster and the Squirrel

math

PawnChess

implementation

Rebranding

implementation, strings

Duff in Love

math

Duff and Weight Lifting

greedy

Laurenty and Shop

implementation

Kolya and Tanya

combinatorics

Robot's Task

greedy, implementation

Developing Skills

implementation, math, sortings

Luxurious Houses

implementation, math

Kefa and Park

dfs and similar, graphs, trees

Kefa and Company

binary search, sortings, two pointers

Finding Team Member

brute force, implementation, sortings

Vasya and Petya's Game

math, number theory

Bear and Three Musketeers

brute force, dfs and similar, graphs, hashing

Bear and Elections

greedy, implementation

Bear and Poker

implementation, math, number theory

Order Book

data structures, greedy, implementation, sortings

Simple Game

constructive algorithms, games, greedy, implementation, math

Elections

implementation

Inventory

greedy, math

Music

implementation, math

Berland National Library

implementation

Clique in the Divisibility Graph

dp, math, number theory

Gerald is into Art

constructive algorithms, implementation

Amr and The Large Array

implementation

Lala Land and Apple Trees

brute force, implementation, sortings

Pasha and Tea

constructive algorithms, implementation, math, sortings

Ilya and Diplomas

greedy, implementation, math

Case of Fake Numbers

brute force, implementation

Case of Matryoshkas

implementation

Ohana Cleans Up

brute force, greedy, strings

Kyoya and Colored Balls

combinatorics, dp, math

Vanya and Books

implementation, math

Divisibility by Eight

brute force, dp, math

Preparing Olympiad

bitmasks, brute force

Two Substrings

brute force, dp, greedy, implementation, strings

Mike and Fun

brute force, dp, greedy, implementation

Mike and Fax

brute force, implementation, strings

Soldier and Cards

brute force, dfs and similar, games

Soldier and Badges

brute force, greedy, implementation, sortings

Queue

greedy, implementation, sortings

Woodcutters

dp, greedy

Equidistant String

greedy

Sea and Islands

constructive algorithms, implementation

Set of Strings

implementation, strings

Quasi Binary

constructive algorithms, dp, greedy, implementation

Cutting Banner

brute force, implementation

Tavas and SaDDas

bitmasks, brute force, combinatorics, implementation

Covered Path

dp, greedy, math

Exam

constructive algorithms, implementation, math

Diophantine equation

*special problem

Quadratic equation

*special problem

Glass Carving

binary search, data structures, implementation

Error Correct System

greedy

Playing with Paper

implementation, math

Om Nom and Dark Park

dfs and similar, greedy, implementation

King of Thieves

brute force, implementation

Pasha and String

constructive algorithms, greedy, math, strings

Vitaliy and Pie

greedy, hashing, strings

Name Quest

*special problem, greedy

Mean Requests

*special problem, implementation

Rotate, Flip and Zoom

*special problem, implementation

Photo to Remember

*special problem, data structures, dp, implementation

Reposts

*special problem, dfs and similar, dp, graphs, trees

DNA Alignment

math, strings

Two Buttons

dfs and similar, graphs, greedy, implementation, math, shortest paths

A and B and Team Training

greedy, implementation, math, number theory

A and B and Compilation Errors

data structures, implementation, sortings