Amity Assessment

brute force, constructive algorithms, implementation

Little Artem and Dance

brute force, constructive algorithms, implementation

Three-dimensional Turtle Super Computer

brute force, dfs and similar, graphs

Promocodes with Mistakes

*special problem, brute force, constructive algorithms, implementation

Orchestra

brute force, implementation

Fibonacci-ish

brute force, dp, hashing, implementation, math

A Trivial Problem

brute force, constructive algorithms, math, number theory

Ebony and Ivory

brute force, math, number theory

Magic Matrix

brute force, divide and conquer, graphs, matrices, trees

Longest Subsequence

brute force, math, number theory

Alice, Bob, Two Teams

brute force, constructive algorithms

Interview

brute force, implementation

Far Relative’s Problem

brute force

Far Relative’s Birthday Cake

brute force, combinatorics, constructive algorithms, implementation

Jerry's Protest

brute force, combinatorics, dp, probabilities

Block Towers

brute force, greedy, math, number theory

Robot Sequence

brute force, implementation

Rat Kwesh and Cheese

brute force, constructive algorithms, math

Link/Cut Tree

brute force, implementation

Skills

binary search, brute force, dp, greedy, sortings, two pointers

The Text Splitting

brute force, implementation, strings

New Year and Old Property

bitmasks, brute force, implementation

Two Bases

brute force, implementation

Spongebob and Squares

brute force, math

Chocolate Bar

brute force, dp

Edo and Magnets

brute force, greedy, implementation, two pointers

2Char

brute force, implementation

Gennady the Dentist

brute force, implementation

Dima and Lisa

brute force, math, number theory

Three Logos

bitmasks, brute force, constructive algorithms, geometry, implementation, math

Kefa and First Steps

brute force, dp, implementation

Finding Team Member

brute force, implementation, sortings

"Or" Game

brute force, greedy

Party

bitmasks, brute force, graph matchings

Bear and Three Musketeers

brute force, dfs and similar, graphs, hashing

Sign Posts

brute force, geometry, math

Primes or Palindromes?

brute force, implementation, math, number theory

Gerald's Hexagon

brute force, geometry, math

Amr and Chemistry

brute force, graphs, greedy, math, shortest paths

Lala Land and Apple Trees

brute force, implementation, sortings

Arthur and Table

brute force, data structures, dp, greedy, math, sortings

Case of Fake Numbers

brute force, implementation

Ohana Cleans Up

brute force, greedy, strings

Kyoya and Photobooks

brute force, math, strings

Vanya and Brackets

brute force, dp, expression parsing, greedy, implementation, strings

Vanya and Triangles

brute force, combinatorics, data structures, geometry, math, sortings

Vanya and Scales

brute force, dp, greedy, math, meet-in-the-middle, number theory

ZgukistringZ

brute force, constructive algorithms, implementation, strings

GukiZ and Contest

brute force, implementation, sortings

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

Mike and Frog

brute force, greedy, implementation, math

Soldier and Cards

brute force, dfs and similar, games

Soldier and Badges

brute force, greedy, implementation, sortings

Soldier and Bananas

brute force, implementation, math

A Heap of Heaps

brute force, data structures, math, sortings

Weird Chess

brute force, constructive algorithms, implementation

Tourist's Notes

binary search, brute force, greedy, implementation, math

Cutting Banner

brute force, implementation

Tavas and SaDDas

bitmasks, brute force, combinatorics, implementation

Tavas and Nafas

brute force, implementation

Group Photo 2 (online mirror version)

brute force, greedy, sortings

Fuzzy Search

bitmasks, brute force, fft

Om Nom and Candies

brute force, greedy, math

King of Thieves

brute force, implementation

Anya and Cubes

binary search, bitmasks, brute force, dp, math, meet-in-the-middle

Pasha and Pipe

binary search, brute force, combinatorics, dp, implementation

Drazil and His Happy Friends

brute force, dsu, meet-in-the-middle, number theory

Han Solo and Lazer Gun

brute force, data structures, geometry, implementation, math

Inversions problem

brute force, dfs and similar, dp, meet-in-the-middle

Permutations

brute force

Fox And Jumping

bitmasks, brute force, dp, math

Maximum in Table

brute force, implementation

Pasha and Pixels

brute force

Mr. Kitayuta's Colorful Graph

brute force, dfs and similar, dsu, graphs

Mr. Kitayuta's Gift

brute force, implementation, strings

Gears

brute force, geometry, math

Removing Columns

brute force, constructive algorithms, implementation

Secret Combination

brute force, constructive algorithms, implementation

Minimum Difficulty

brute force, implementation, math

Vasya and Basketball

binary search, brute force, data structures, implementation, sortings, two pointers

Restoring Increasing Sequence

binary search, brute force, greedy, implementation

Chocolate

brute force, dfs and similar, math, meet-in-the-middle, number theory

Hacking Cypher

brute force, math, number theory, strings

Unbearable Controversy of Being

brute force, combinatorics, dfs and similar, graphs

Candy Boxes

brute force, constructive algorithms, math

Giga Tower

brute force

Fight the Monster

binary search, brute force, implementation

Palindrome Transformation

brute force, greedy, implementation

Valuable Resources

brute force, greedy

Counterexample

brute force, implementation, math, number theory

Towers

brute force, constructive algorithms, greedy, implementation, sortings

Expression

brute force, math

Wavy numbers

brute force, dfs and similar, meet-in-the-middle, sortings

Dreamoon and WiFi

bitmasks, brute force, combinatorics, dp, math, probabilities

CGCDSSQ

brute force, data structures, math

Kamal-ol-molk's Painting

brute force, constructive algorithms, greedy