Little Artem and Random Variable

dp, implementation, math, probabilities

Thief in a Shop

divide and conquer, dp, fft, math

Famil Door and Roads

combinatorics, data structures, dfs and similar, dp, probabilities, trees

Magic Numbers

dp

Group Projects

dp

Array GCD

dp, greedy, number theory

Hamiltonian Spanning Tree

dfs and similar, dp, graph matchings, greedy, trees

Kleofáš and the n-thlon

dp, math, probabilities

Wilbur and Trees

dp, math, probabilities, sortings

Strange Calculation and Cats

dp, matrices

Super M

dfs and similar, dp, graphs, trees

Top Secret Task

dp

Duff in Beach

dp

Zublicanes and Mumocrates

dp, trees, two pointers

Bulbo

dp, greedy

Pig and Palindromes

combinatorics, dp

Mausoleum

dp

Gerald and Giant Chess

combinatorics, dp, math, number theory

Ann and Half-Palindrome

data structures, dp, graphs, string suffix structures, strings, trees

Vanya and Brackets

brute force, dp, expression parsing, greedy, implementation, strings

Mike and Foam

bitmasks, combinatorics, dp, math, number theory

Road Improvement

dp, trees

Quest

dp, greedy

Demiurges Play Again

dfs and similar, dp, math, trees

Simplified Nonogram

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

Transmitting Levels

dp, implementation

Anya and Cubes

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

Pluses everywhere

combinatorics, dp, math, number theory

A and B and Lecture Rooms

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

Pasha and Pipe

binary search, brute force, combinatorics, dp, implementation

Darth Vader and Tree

dp, matrices

Inversions problem

dp, probabilities

Progress Monitoring

dp, trees

Arthur and Brackets

dp, greedy

Breaking Good

dfs and similar, dp, graphs, shortest paths

The Maths Lecture

dp, implementation

New Year Domino

data structures, dp, dsu

Traffic Jams in the Land

data structures, dp, number theory

Name That Tune

dp, probabilities, two pointers

Treeland Tour

data structures, dfs and similar, dp, trees

Special Matrices

combinatorics, dp

Hiking

binary search, dp

LIS of Sequence

data structures, dp, greedy, hashing, math

Valid Sets

dfs and similar, dp, math, trees

Kindergarten

data structures, dp, greedy

Dreamoon and Strings

dp, strings

Alex and Complicated Task

data structures, dp, greedy

Fedor and Essay

dfs and similar, dp, graphs, hashing, strings

Increase Sequence

combinatorics, dp

Substitutes in Number

dp

Civilization

dfs and similar, dp, dsu, ternary search, trees

Jzzhu and Numbers

bitmasks, combinatorics, dp

Valera and Number

bitmasks, dp, math, probabilities

Berland Federalization

dp, trees

Devu and Birthday Celebration

combinatorics, dp, math

Random Task

binary search, bitmasks, combinatorics, dp, math

Guess the Tree

bitmasks, constructive algorithms, dp, greedy, trees

Match & Catch

dp, string suffix structures, strings

Sereja and Two Sequences

data structures, dp

Biathlon Track

binary search, brute force, constructive algorithms, data structures, dp

Beautiful Pairs of Numbers

combinatorics, dp

Game with Points

dp, graphs, implementation, shortest paths

Bear and Floodlight

bitmasks, dp, geometry

Antimatter

dp

Captains Mode

bitmasks, dp, games

Watching Fireworks is Fun

data structures, dp, math

Valera and Fools

dfs and similar, dp, graphs, shortest paths

Free Market

dp, greedy

Lucky Number Representation

constructive algorithms, dfs and similar, dp

Vasya and Beautiful Arrays

brute force, dp, number theory

Game with Strings

bitmasks, dp, games

Antichain

dp, graph matchings, greedy

Xenia and Dominoes

bitmasks, dfs and similar, dp

Rectangles and Square

brute force, dp

Binary Key

dp, greedy, implementation

The Great Julya Calendar

dp

Axis Walking

bitmasks, combinatorics, constructive algorithms, dp, meet-in-the-middle

Kalila and Dimna in the Logging Industry

dp, geometry

Game with Powers

dp, games

PE Lesson

dp, math

PE Lesson

dp

PE Lesson

brute force, dp

Ilya and Roads

dp

Cats Transport

data structures, dp

Context Advertising

dp, two pointers

Painting Square

dp, fft

Greg and Caves

combinatorics, dp

Greg and Friends

combinatorics, dp, graphs, shortest paths

Shaass the Great

dp, trees

Cows and Cool Sequences

dp, math, number theory

Coin Troubles

dp

Yet Another Number Game

dp, games

The Minimum Number of Variables

bitmasks, dp

Dima and Figure

dp

Wall Bars

dp

Dormitory

dp, implementation

Blood Cousins Return

binary search, data structures, dfs and similar, dp, sortings

World Eater Brothers

dfs and similar, dp, greedy, trees

Cactus

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

Towers

dp, greedy, two pointers