Two TVs

data structures, greedy, sortings

Chess Tourney

implementation, sortings

Rectangles

combinatorics, math

Sorting by Subsequences

dfs and similar, dsu, implementation, math, sortings

Gleb And Pizza

geometry

Kirill And The Game

brute force, two pointers

Godsend

games, math

Leha and Function

combinatorics, greedy, math, number theory, sortings

Journey

dfs and similar, dp, graphs, probabilities, trees

Binary Blocks

brute force

Two Seals

brute force, implementation

The number on the board

greedy

The Festive Evening

data structures, implementation

Black Square

implementation

Restaurant Tables

implementation

Suitable Replacement

binary search, greedy, implementation

Binary Protocol

implementation

Okabe and Boxes

data structures, greedy, trees

Okabe and Banana Trees

brute force, math

Mister B and Angle in Polygon

constructive algorithms, geometry, math

Makes And The Product

combinatorics, implementation, math, sortings

Treasure Hunt

implementation, math, number theory

Karen and Coffee

binary search, data structures, implementation

An express train to reveries

constructive algorithms

The Contest

implementation

Sagheer and Nubian Market

binary search, sortings

Sagheer and Crossroads

implementation

Vladik and Complicated Book

implementation, sortings

Summer sell-off

greedy, sortings

Do you want a date?

implementation, math, sortings

Tea Party

constructive algorithms, greedy, sortings

Average Sleep Time

data structures, implementation, math

T-Shirt Hunt

brute force, implementation

Minimum number of steps

combinatorics, greedy, implementation, math

Distances to Zero

constructive algorithms

Maximal Binary Matrix

constructive algorithms

April Fools' Problem (easy)

greedy, sortings

Send the Fool Further! (easy)

dfs and similar, graphs, trees

Vicious Keyboard

brute force

T-shirt buying

data structures, implementation

Carrot Cakes

brute force, implementation

Mike and strings

brute force, dp, strings

Odd sum

dp, greedy, implementation

k-Factorization

implementation, math, number theory

Find The Bone

implementation

Cutting Carrot

geometry, math

Counting-out Rhyme

implementation

New Bus Route

implementation, sortings

Anastasia and pebbles

implementation, math

Not Afraid

greedy, implementation, math

The Monster

brute force, math, number theory

Anton and Classes

greedy, sortings

Dishonest Sellers

constructive algorithms, greedy, sortings

Weird Rounding

brute force, greedy

Game of Credit Cards

data structures, dp, greedy, sortings

Sherlock and his girlfriend

constructive algorithms, number theory

Lie or Truth

*special problem, constructive algorithms, implementation, sortings

Maximum Number

*special problem, constructive algorithms, greedy, implementation

Bear and Different Names

constructive algorithms, greedy

Bear and Friendship Condition

dfs and similar, dsu, graphs

Draw Brackets!

*special problem, implementation

Online Courses In BSU

*special problem, dfs and similar, graphs, implementation

Maximize Sum of Digits

*special problem, implementation, math

News About Credit

*special problem, greedy, two pointers

Snacktower

data structures, implementation

Table Tennis Game 2

math

Code obfuscation

greedy, implementation, strings

USB vs. PS/2

greedy, implementation, sortings, two pointers

k-th divisor

math, number theory

Dasha and Password

brute force, dp, implementation

Dasha and friends

brute force, implementation, math

Frodo and pillows

binary search, greedy

Blown Garland

brute force, implementation, number theory

Bash's Big Day

greedy, math, number theory

PolandBall and Forest

dfs and similar, dsu, graphs, interactive, trees

PolandBall and Game

binary search, data structures, games, greedy, sortings, strings

Ilya and tic-tac-toe game

brute force, implementation

Lesha and array splitting

constructive algorithms, greedy, implementation

New Year and North Pole

geometry, implementation

Voting

greedy, implementation, two pointers

Parallelogram is Back

brute force, constructive algorithms, geometry

Santa Claus and Robot

constructive algorithms, math

Santa Claus and Keyboard Check

implementation, strings

Servers

implementation

Green and Black Tea

constructive algorithms, greedy, math

Hongcow Solves A Puzzle

implementation

Hongcow Builds A Nation

dfs and similar, graphs

Vladik and fractions

brute force, constructive algorithms, math, number theory

Chloe and the sequence

binary search, bitmasks, constructive algorithms, implementation

Vladik and flights

constructive algorithms, greedy, implementation

Arpa’s obvious problem and Mehrdad’s terrible solution

brute force, math, number theory

Alyona and flowers

constructive algorithms

Alyona and copybooks

brute force, implementation

Urbanization

greedy, number theory, sortings

Parade

math

Sanatorium

binary search, constructive algorithms, greedy, implementation, math

Coupons and Discounts

constructive algorithms, greedy

Delete Them

constructive algorithms, implementation

Spotlights

dp, implementation

Guess the Array

constructive algorithms, interactive, math