Divisibility by Eight

brute force, dp, math

Preparing Olympiad

bitmasks, brute force

Two Substrings

brute force, dp, greedy, implementation, strings

Degenerate Matrix

binary search, math

Happy Line

constructive algorithms, greedy, sortings

Yura and Developers

data structures, divide and conquer

Sasha Circle

geometry, math

Haar Features

greedy, implementation

The Game Of Parity

games

Looksery Party

constructive algorithms, dfs and similar, graphs, greedy

Face Detection

implementation, strings

Mike and Fun

brute force, dp, greedy, implementation

Mike and Fax

brute force, implementation, strings

Mike and Friends

data structures, string suffix structures, strings, trees

Mike and Fish

constructive algorithms, dfs and similar, graphs

Mike and Foam

bitmasks, combinatorics, dp, math, number theory

Mike and Feet

binary search, data structures, dp, dsu

Mike and Frog

brute force, greedy, implementation, math

Soldier and Traveling

flows, graphs, math

Soldier and Number Game

constructive algorithms, dp, math, number theory

Soldier and Cards

brute force, dfs and similar, games

Soldier and Badges

brute force, greedy, implementation, sortings

Soldier and Bananas

brute force, implementation, math

Paths and Trees

graphs, greedy, shortest paths

Queue

greedy, implementation, sortings

Woodcutters

dp, greedy

Equidistant String

greedy

Toy Cars

implementation

Sea and Islands

constructive algorithms, implementation

Set of Strings

implementation, strings

Listening to Music

constructive algorithms, data structures

Road Improvement

dp, trees

Remembering Strings

bitmasks, dp

Destroying Roads

constructive algorithms, graphs, shortest paths

Writing Code

dp

Quest

dp, greedy

Playing on Graph

graphs, shortest paths

Superhero's Job

dfs and similar, dp, hashing, math, number theory

Idempotent functions

constructive algorithms, graphs, math

Duck Hunt

data structures

Place Your Ad Here

data structures, sortings

Infinite Inversions

binary search, data structures, implementation, sortings, trees

Bad Luck Island

dp, probabilities

Ice Cave

dfs and similar

School Marks

greedy, implementation

Combination Lock

implementation

Summer Dichotomy

2-sat, data structures, dfs and similar, greedy

Berserk Robot

constructive algorithms, math, sortings

A Heap of Heaps

brute force, data structures, math, sortings

Demiurges Play Again

dfs and similar, dp, math, trees

Weird Chess

brute force, constructive algorithms, implementation

Tourist's Notes

binary search, brute force, greedy, implementation, math

Quasi Binary

constructive algorithms, dp, greedy, implementation

Cutting Banner

brute force, implementation

Tavas on the Path

data structures, divide and conquer, trees

Tavas in Kansas

dp, games

Tavas and Pashmaks

geometry, math

Tavas and Malekas

greedy, hashing, string suffix structures, strings

Tavas and Karafs

binary search, greedy, math

Tavas and SaDDas

bitmasks, brute force, combinatorics, implementation

Tavas and Nafas

brute force, implementation

Simplified Nonogram

bitmasks, dp, hashing, meet-in-the-middle

Berland Local Positioning System

constructive algorithms, greedy, hashing, implementation

Handshakes

binary search, constructive algorithms, data structures, greedy

Polycarpus' Dice

math

Covered Path

dp, greedy, math

Exam

constructive algorithms, implementation, math

Encoding

hashing, string suffix structures, strings

Correcting Mistakes

constructive algorithms, dp, greedy, hashing, strings, two pointers

Landmarks

data structures, dp

Board Game

games, greedy, implementation, math

Work Group

dfs and similar, dp, graphs, strings, trees

Berland Miners

binary search, data structures, dfs and similar, greedy, trees

Different variables

*special problem

Points in triangle

*special problem, geometry

Levenshtein distance

*special problem

Jumping frogs

*special problem

Sum and product

*special problem

Set subtraction

*special problem

Diophantine equation

*special problem

String inside out

*special problem

Quadratic equation

*special problem

Group Photo 2 (online mirror version)

brute force, greedy, sortings

Triangles 3000

geometry, sortings

Fuzzy Search

bitmasks, brute force, fft

Data Center Drama

dfs and similar, graphs

Clique Problem

data structures, dp, greedy, implementation, sortings

Glass Carving

binary search, data structures, implementation

Error Correct System

greedy

Playing with Paper

implementation, math

Spiders Evil Plan

greedy, trees

Pudding Monsters

data structures, divide and conquer

Transmitting Levels

dp, implementation

Om Nom and Necklace

hashing, string suffix structures, strings

Om Nom and Candies

brute force, greedy, math

Om Nom and Dark Park

dfs and similar, greedy, implementation

King of Thieves

brute force, implementation

Anya and Cubes

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

Arthur and Walls

constructive algorithms, data structures, graphs, greedy, shortest paths

Ilya and Sticks

greedy, math, sortings