Case of a Top Secret

binary search, implementation, math

Case of Chocolate

data structures

Case of Fugitive

data structures, greedy, sortings

Kyoya and Train

dp, fft, graphs, math, probabilities

Nudist Beach

binary search, graphs, greedy

Love Triangles

dfs and similar, dsu, graphs

Kyoya and Permutation

binary search, combinatorics, constructive algorithms, greedy, implementation, math

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

GukiZ and GukiZiana

binary search, data structures, implementation

GukiZ and Binary Operations

combinatorics, implementation, math, matrices, number theory

GukiZ hates Boxes

binary search, greedy

ZgukistringZ

brute force, constructive algorithms, implementation, strings

Brackets in Implications

constructive algorithms, greedy, implementation, math

Regular Bridge

constructive algorithms, graphs, implementation

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

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

Paths and Trees

graphs, greedy, shortest paths

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

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

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

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

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

String inside out

*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

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

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

And Yet Another Bracket Sequence

data structures, greedy, hashing, string suffix structures, strings

Rooks and Rectangles

data structures, sortings

Social Network

greedy, two pointers

The Art of Dealing with ATM

binary search, sortings

Фото на память - 2 (round version)

dp, greedy

Возможно, вы знаете этих людей?

implementation

Statistics of Recompressing Videos

*special problem, data structures, implementation

Closest Equals

*special problem, data structures

Chicken or Fish?

greedy

Cycling City

dfs and similar, graphs

Shop

greedy

Pluses everywhere

combinatorics, dp, math, number theory

Cubes

games, greedy, implementation