Time to Raid Cowavans

brute force, data structures, sortings

Russian Roulette

constructive algorithms, greedy

Vectors

implementation, math

Battleship

*special problem, dfs and similar, implementation

Volleyball

shortest paths

End of Exams

greedy

Interesting Game

dp, games, math

Two out of Three

dp

General Mobilization

data structures, dfs and similar, sortings

Polycarp's Picture Gallery

constructive algorithms, greedy

Beaver Game

dp, games, number theory

Beavermuncher-0xFF

dfs and similar, dp, dsu, greedy, trees

Mice

greedy, two pointers

Big Maximum Sum

data structures, dp, greedy, implementation, math, trees

Chessboard Billiard

dfs and similar, dsu, graphs, number theory

Need For Brake

binary search, greedy, sortings

Oil

*special problem, greedy, math

Dot

dp, games

Game

implementation

Optical Experiment

binary search, data structures, dp

Petya and Post

data structures, dp

Harry Potter and the Golden Snitch

binary search, geometry

Domain

*special problem, expression parsing

Sweets Game

bitmasks, dfs and similar, dp, games, implementation

Dividing Island

constructive algorithms

Enemy is weak

data structures, trees

Capture Valerian

math

Mushroom Strife

brute force, dfs and similar

Shortest Path

graphs, shortest paths

Team Arrangement

constructive algorithms, greedy, implementation

Calendar

greedy, strings

Array

combinatorics, math

Changing a String

dp

Pie or die

games

Writing a Song

brute force, dp, strings

First Digit Law

dp, math, probabilities

Bombing

binary search, dp, probabilities

Happy Farm 5

geometry

Ivan the Fool VS Gorynych the Dragon

dp, games, graphs

Crossword

implementation

Comb

data structures, dp

Road Problem

graphs

Director

constructive algorithms, greedy

Event Dates

greedy, meet-in-the-middle, sortings

Dancing Lessons

data structures

Triminoes

constructive algorithms, greedy

Journey

brute force, constructive algorithms, implementation

3-cycles

constructive algorithms, graphs, greedy

Pawn

dp

What Has Dirichlet Got to Do with That?

dp, games

Moon Craters

dp, sortings

C*++ Calculations

expression parsing, greedy

Smart Boy

dp, games, strings

Vasya the Architect

implementation

Old Berland Language

data structures, greedy, trees

Parade

data structures, sortings

Collisions

brute force, implementation, math

Knights

geometry, graphs, shortest paths, sortings

Chocolate

dfs and similar, implementation

Ant on the Tree

constructive algorithms, dfs and similar, trees

Number With The Given Amount Of Divisors

brute force, dp, number theory

Unordered Subsequence

constructive algorithms, greedy

Parquet

combinatorics, constructive algorithms, greedy, implementation

Roads not only in Berland

dsu, graphs, trees

Roads in Berland

graphs, shortest paths

Segments

greedy, sortings

Stripe 2

binary search, dp, sortings

Intersection

implementation, math

Jabber ID

implementation, strings

Dijkstra?

graphs, shortest paths

Equation

math

Checkout Assistant

dp

Flag 2

dp

Seller Bob

brute force, dp, greedy

Fish

bitmasks, dp, probabilities

Logging

implementation, strings

Industrial Nim

games

Camels

dp

Two Paths

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

Letter A

geometry, implementation

Start of the session

constructive algorithms

Digital Root

number theory

How many trees?

combinatorics, divide and conquer, dp

Looking for Order

bitmasks, dp

Exposition

binary search, data structures, dsu, trees, two pointers

Follow Traffic Rules

implementation, math

Longest Regular Bracket Sequence

constructive algorithms, data structures, dp, greedy, sortings, strings

Lorry

greedy, sortings

The least round way

dp, math

Ancient Berland Circus

geometry, math