Smart Boy

dp, games, strings

Let's Go Rolling!

dp, sortings

Vasya the Architect

implementation

Blinds

brute force

Trial for Chief

graphs, greedy, shortest paths

Lesson Timetable

combinatorics, dp, math

Old Berland Language

data structures, greedy, trees

Computer Game

greedy, implementation

Two Paths

constructive algorithms, dsu, graphs, implementation

New Game with a Chess Piece

games

Bowls

geometry, implementation

Fractal

implementation

Parade

data structures, sortings

Animals

dp, greedy

Fire Again

brute force, dfs and similar, shortest paths

Warehouse

implementation

Collisions

brute force, implementation, math

Road Map

dfs and similar, graphs

Helper

Knights

geometry, graphs, shortest paths, sortings

Wonderful Randomized Sum

greedy

String Problem

shortest paths

Hide-and-Seek

geometry, implementation

Constellation

implementation

Flea

math

TV Game

dp

Chocolate

dfs and similar, implementation

Schedule

implementation

Sysadmin Bob

greedy, implementation, strings

Tricky and Clever Password

binary search, constructive algorithms, data structures, greedy, hashing, strings

King's Problem?

geometry, greedy

Shooting Gallery

dp, probabilities

Codeforces World Finals

implementation

Accounting

brute force, math

Quarrel

graphs, shortest paths

Ant on the Tree

constructive algorithms, dfs and similar, trees

Mail Stamps

data structures, dfs and similar, graphs, implementation

Traffic Lights

implementation

DravDe saves the world

geometry, math

Don't fear, DravDe is kind

binary search, data structures, dp, hashing

Bath Queue

combinatorics, dp, probabilities

pSort

dfs and similar, dsu, graphs

Bender Problem

implementation

Number With The Given Amount Of Divisors

brute force, dp, number theory

Ring Road 2

2-sat, dfs and similar, dsu, graphs

Unordered Subsequence

constructive algorithms, greedy

Multithreading

constructive algorithms

Tickets

combinatorics, math, probabilities

Parquet

combinatorics, constructive algorithms, greedy, implementation

Regular Bracket Sequence

greedy

Test

hashing, strings

Roads not only in Berland

dsu, graphs, trees

Roads in Berland

graphs, shortest paths

Berland collider

binary search

Broken robot

dp, math, probabilities

Sequence of points

geometry, implementation, math

F1 Champions

implementation

Ring road

graphs

Tree

dp

Tetragon

geometry, math

Oranges and Apples

constructive algorithms, sortings

Party

constructive algorithms, graphs, math

Scheme

dfs and similar, graphs, trees

Segments

greedy, sortings

System Administrator

graphs

Bargaining Table

brute force, dp

Traveling Graph

bitmasks, graph matchings, graphs

Stripe 2

binary search, dp, sortings

Intersection

implementation, math

Jabber ID

implementation, strings

Dijkstra?

graphs, shortest paths

Equation

math

BerOS file system

implementation

Fairy

dfs and similar, divide and conquer, dsu

Points

data structures

Deletion of Repeats

greedy, hashing, string suffix structures

Checkout Assistant

dp

World Football Cup

implementation

Flag 2

dp

Seller Bob

brute force, dp, greedy

Platforms

brute force, math

Triangle

brute force, geometry

Palisection

strings

Notepad

number theory

Balance

dp

Hierarchy

dfs and similar, dsu, greedy, shortest paths

Fish

bitmasks, dp, probabilities

Logging

implementation, strings

Monitor

binary search, number theory

Triangles

combinatorics, dp

Map

data structures, implementation, sortings

Industrial Nim

games

Laser

math

Camels

dp

Two Paths

dfs and similar, dp, graphs, shortest paths, trees, two pointers

Four Segments

brute force, constructive algorithms, geometry, implementation, math

Holes

data structures, dsu

Triangles

dp, geometry

Sequence

dp, sortings

Letter A

geometry, implementation