Lunar New Year and Food Ordering

data structures, implementation

Lunar New Year and Cross Counting

implementation

Kilani and the Game

dfs and similar, graphs, implementation, shortest paths

Zuhair and Strings

brute force, implementation, strings

Salem and Sticks

brute force, implementation

Game with string

data structures, implementation, math

Splitting into digits

constructive algorithms, implementation, math

Grid game

constructive algorithms, implementation

Polycarp's New Job

implementation

Accordion

greedy, implementation

Build a Contest

data structures, implementation

Roman and Browser

implementation

Postcard

constructive algorithms, implementation

Snowball

implementation

Fedya the Potter

binary search, implementation, math, number theory

Yuhao and a Parenthesis

greedy, implementation

Gennady and a Card Game

brute force, implementation

Find Divisible

greedy, implementation, math

Almost Regular Bracket Sequence

implementation

Circular Dance

implementation

Array Stabilization

implementation

Repeating Cipher

implementation

Great Vova Wall (Version 2)

data structures, implementation

Great Vova Wall (Version 1)

greedy, implementation, math

Uniform String

implementation

New Year and the Acquaintance Estimation

binary search, data structures, graphs, greedy, implementation, math, sortings

New Year and the Treasure Geolocation

brute force, constructive algorithms, greedy, implementation

New Year and the Christmas Ornament

brute force, implementation, math

The Pleasant Walk

implementation

Combostone

games, implementation

JS Minification

greedy, implementation

Ehab and another another xor problem

bitmasks, constructive algorithms, implementation, interactive

Ehab and subtraction

implementation, sortings

Vasya and Templates

greedy, implementation, strings

Minimum Diameter Tree

constructive algorithms, implementation, trees

Connect Three

implementation, math

Right-Left Cipher

implementation, strings

The Fair Nut and String

combinatorics, dp, implementation

Kvass and the Fair Nut

greedy, implementation

The Fair Nut and Elevator

brute force, implementation

The Fair Nut's getting crazy

data structures, implementation

Maximum Diameter Graph

constructive algorithms, graphs, implementation

Vasya and Book

implementation, math

Tricky Interactor

constructive algorithms, implementation, interactive

Farewell Party

constructive algorithms, implementation

Olya and magical square

constructive algorithms, implementation, math

Masha and two friends

implementation

Divisor Subtraction

implementation, math, number theory

Taxi drivers and Lyft

implementation, sortings

The King's Race

implementation, math

Vasya and Books

implementation, math

Diverse Substring

implementation, strings

Video Posts

implementation

BerOS File Suggestion

brute force, implementation

Monsters and Potions

brute force, dp, greedy, implementation

Binary Numbers AND Sum

data structures, implementation, math

Boxes Packing

binary search, implementation

Books Queries

implementation

Vasya and Chocolate

implementation, math

Fun with Integers

dfs and similar, graphs, implementation, math

Banh-mi

greedy, implementation, math

A Prank

greedy, implementation

TV Shows

data structures, greedy, implementation, sortings

Multiplicity

data structures, dp, implementation, math, number theory

Views Matter

greedy, implementation, sortings

Coins

greedy, implementation, math

Maximum Subrectangle

binary search, implementation, two pointers

Forgery

implementation

Cashier

implementation

Pick Heroes

greedy, implementation, interactive, sortings

Determine Line

implementation

Refactoring

greedy, implementation, strings

Alice and Hairdresser

dsu, implementation

Chips Puzzle

constructive algorithms, implementation, math

Changing Array

greedy, implementation

Candies Distribution

constructive algorithms, implementation

Appending Mex

implementation

Elevator or Stairs?

implementation

Vasya and Multisets

brute force, dp, greedy, implementation, math

Vasya And Password

greedy, implementation, strings

Splitting money

implementation

Grid Sort

implementation

Smallest Word

constructive algorithms, greedy, implementation

Lost Array

implementation

Elections

implementation, math

Vitamins

bitmasks, brute force, dp, implementation

Benches

binary search, implementation

Heist

greedy, implementation, sortings

Slime

dp, greedy, implementation

Equality

implementation, strings

King Escape

dfs and similar, graphs, implementation

Barcelonian Distance

geometry, implementation

Golden Plate

implementation, math

Vasya and Golden Ticket

implementation

In Search of an Easy Problem

implementation

Concatenated Multiples

implementation, math

Many Equal Substrings

implementation, strings

Rectangles

geometry, implementation, sortings

Find Square

implementation

Numbers on the Chessboard

implementation, math