Domino (hard version)

constructive algorithms, implementation, math

Jerry's Protest

brute force, combinatorics, dp, probabilities

Sereja and Prefixes

binary search, brute force

Inna and Dima

dfs and similar, dp, graphs, implementation

Kingdom and its Cities

dfs and similar, divide and conquer, dp, graphs, sortings, trees

Graph Cost

dp, greedy, math, number theory

Factory Repairs

data structures

Preorder

combinatorics, divide and conquer, dp, dsu, hashing, sortings, trees

Anton and School - 2

combinatorics, dp, math, number theory

Put Knight!

games, math

Trips

graphs

Relay Race

dp

Measuring Lengths in Baden

math

Counting Sticks

brute force, implementation

SMSC

implementation

Doremy's Pegging Game

combinatorics, dp, math

Two Semiknights Meet

greedy, math

The Great Equalizer

binary search, data structures, math, sortings

Gold Transfer

binary search, data structures, dp, greedy, interactive, trees

Game of Stones

bitmasks, dp, games

Lynyrd Skynyrd

data structures, dfs and similar, dp, math, trees

Barcelonian Distance

geometry, implementation

Smallest number

brute force

Antenna Coverage

data structures, dp, greedy, sortings

Challenge Pennants

combinatorics, math

Minimum path

greedy

Minimum Possible LCM

brute force, greedy, math, number theory

Substring and Subsequence

dp

Four Segments

brute force, data structures, dp

Three States

dfs and similar, graphs, shortest paths

Multiplication Table

implementation

Processing Queries

*special problem, constructive algorithms, data structures, two pointers

Chips

greedy

Beauty Pageant

brute force, constructive algorithms, greedy

Land Lot

brute force, implementation

Speedrun

brute force, dfs and similar, dp, graphs, greedy, math, sortings, two pointers

Trains and Statistic

data structures, dp, greedy

Spy Syndrome 2

data structures, dp, hashing, implementation, sortings, string suffix structures, strings

Problem About Equation

math

Segments

greedy, sortings

Complete the Projects (hard version)

dp, greedy

Persistent Bookcase

bitmasks, data structures, dfs and similar, implementation

Breaking Good

dfs and similar, dp, graphs, shortest paths

Divisor Paths

combinatorics, graphs, greedy, math, number theory

Game with String

implementation, probabilities, strings

Promising String (hard version)

data structures, implementation, math, strings

Returning Home

graphs, shortest paths, sortings

Twin Buildings

greedy, implementation

On Segment's Own Points

implementation

Hossam and (sub-)palindromic tree

brute force, data structures, dfs and similar, dp, strings, trees

Prefixes and Suffixes

constructive algorithms, strings, two pointers

Hidden Word

brute force, constructive algorithms, implementation, strings

Dima and Two Sequences

combinatorics, math, sortings

Special Permutations

math

Special Task

greedy

Dungeons and Candies

dsu, graphs, greedy, trees

World Football Cup

implementation

Not Quite Lee

combinatorics, dp, math, number theory

Timofey and rectangles

constructive algorithms, geometry

Tricky Function

data structures, divide and conquer, geometry

New Game Plus!

constructive algorithms, greedy, math

Rotate, Flip and Zoom

*special problem, implementation

Obsessive String

dp, strings

Erase Subsequences

dp, strings

Permutations

bitmasks, divide and conquer, math

Mass Change Queries

data structures

Help Farmer

brute force, math

The Feast and the Bus

brute force, constructive algorithms, greedy, math

Fibonacci-ish

brute force, dp, hashing, implementation, math

Just Arrange the Icons

greedy, implementation, math

Makoto and a Blackboard

dp, math, number theory, probabilities

Company Income Growth

greedy

Playlist for Polycarp (easy version)

bitmasks, combinatorics, dp

Editor

data structures, implementation

MST Unification

binary search, dsu, graphs, greedy

Gadgets for dollars and pounds

binary search, greedy, two pointers

The Wall (easy)

Thief in a Shop

divide and conquer, dp, fft, math

Game on Paper

brute force, implementation

Tourism

dfs and similar, dp, dsu, graphs, greedy, trees

Cycle

dfs and similar, graphs

Nature Reserve

binary search, geometry, ternary search

Falling Anvils

math, probabilities

Shovels Shop

dp, greedy, sortings

Moodular Arithmetic

combinatorics, dfs and similar, dsu, math, number theory

Data Recovery

implementation

Spongebob and Squares

brute force, math

Flexible String Revisit

combinatorics, dp, math, probabilities

Missing Numbers

binary search, constructive algorithms, greedy, math, number theory

Road Improvement

dp, trees

Priority Queue

combinatorics, dp, implementation, math, ternary search

Lucky Transformation

strings

Online Courses In BSU

*special problem, dfs and similar, graphs, implementation

Minimization

dp, greedy, sortings

Decoding Genome

dp, matrices

Mocha and Diana (Hard Version)

brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, trees, two pointers

Product Oriented Recurrence

dp, math, matrices, number theory

Cardiogram

implementation

Clique Partition

brute force, constructive algorithms, graphs, greedy, implementation

Text Editor

data structures, dfs and similar, graphs, greedy, shortest paths