Quest

dp, greedy

Superhero's Job

dfs and similar, dp, hashing, math, number theory

Bad Luck Island

dp, probabilities

Demiurges Play Again

dfs and similar, dp, math, trees

Quasi Binary

constructive algorithms, dp, greedy, implementation

Tavas in Kansas

dp, games

Simplified Nonogram

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

Covered Path

dp, greedy, math

Correcting Mistakes

constructive algorithms, dp, greedy, hashing, strings, two pointers

Landmarks

data structures, dp

Work Group

dfs and similar, dp, graphs, strings, trees

Clique Problem

data structures, dp, greedy, implementation, sortings

Transmitting Levels

dp, implementation

Anya and Cubes

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

Фото на память - 2 (round version)

dp, greedy

Photo to Remember

*special problem, data structures, dp, implementation

Reposts

*special problem, dfs and similar, dp, graphs, trees

Pluses everywhere

combinatorics, dp, math, number theory

A and B and Lecture Rooms

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

A and B and Interesting Substrings

data structures, dp, two pointers

Pasha and Pipe

binary search, brute force, combinatorics, dp, implementation

Ilya and Escalator

combinatorics, dp, math, probabilities

Drazil and Morning Exercise

dfs and similar, dp, dsu, trees, two pointers

Darth Vader and Tree

dp, matrices

Inversions problem

dp

Inversions problem

dp, probabilities

Inversions problem

brute force, dfs and similar, dp, meet-in-the-middle

Subarray Cuts

dp

Subarray Cuts

dp

Fox And Travelling

dp, trees

Fox And Jumping

bitmasks, brute force, dp, math

Progress Monitoring

dp, trees

Sums of Digits

dp, greedy, implementation

Arthur and Brackets

dp, greedy

Breaking Good

dfs and similar, dp, graphs, shortest paths

The Maths Lecture

dp, implementation

Mr. Kitayuta's Gift

combinatorics, dp, matrices, strings

Mr. Kitayuta, the Treasure Hunter

dfs and similar, dp, two pointers

Mr. Kitayuta's Colorful Graph

dfs and similar, dp, dsu, graphs

New Year Shopping

divide and conquer, dp

New Year Domino

data structures, dp, dsu

Stairs and Lines

dp, matrices

Traffic Jams in the Land

data structures, dp, number theory

Name That Tune

dp, probabilities, two pointers

Subsequences Return

dp, matrices

Birthday

data structures, dfs and similar, dp, trees

Helping People

dp, probabilities

Obsessive String

dp, strings

Treeland Tour

data structures, dfs and similar, dp, trees

Special Matrices

combinatorics, dp

Hiking

binary search, dp

Given Length and Sum of Digits...

dp, greedy, implementation

BerSU Ball

dfs and similar, dp, graph matchings, greedy, sortings, two pointers

Strip

binary search, data structures, dp, two pointers

LIS of Sequence

data structures, dp, greedy, hashing, math

Valid Sets

dfs and similar, dp, math, trees

Kindergarten

data structures, dp, greedy

Random Function and Tree

combinatorics, dp, trees

Game with Strings

bitmasks, dp, probabilities

Parcels

dp, graphs

Riding in a Lift

combinatorics, dp

Red-Green Towers

dp

Dreamoon and Binary

dp, strings

Dreamoon and Strings

dp, strings

Dreamoon and WiFi

bitmasks, brute force, combinatorics, dp, math, probabilities

Pillars

binary search, data structures, dp, sortings, trees

Flowers

dp

Permanent

dp, graph matchings, math, meet-in-the-middle

Alex and Complicated Task

data structures, dp, greedy

Fedor and Essay

dfs and similar, dp, graphs, hashing, strings

George and Job

dp, implementation

Increase Sequence

combinatorics, dp

Number of Ways

binary search, brute force, data structures, dp, two pointers

World of Darkraft - 2

dp, probabilities

Substitutes in Number

dp

Gargari and Permutations

dfs and similar, dp, graphs, implementation

Appleman and Tree

dfs and similar, dp, trees

Pashmak and Graph

dp, sortings

An easy problem about trees

dp, games, greedy, trees

Civilization

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

A Lot of Games

dfs and similar, dp, games, implementation, strings, trees

Boredom

dp

Little Pony and Elements of Harmony

dp, matrices

Little Pony and Harmony Chest

bitmasks, brute force, dp

Jzzhu and Squares

dp, math, number theory

Jzzhu and Numbers

bitmasks, combinatorics, dp

Painting Fence

divide and conquer, dp, greedy

DZY Loves Sequences

dp, implementation, two pointers

Valera and Number

bitmasks, dp, math, probabilities

Berland Federalization

dp, trees

Devu and Birthday Celebration

combinatorics, dp, math

The Child and Polygon

dp, geometry

Banners

brute force, data structures, dp

Pudding Monsters

dp

Special Grid

brute force, dp, greedy

Tachibana Kanade's Tofu

dp

Kuriyama Mirai's Stones

dp, implementation, sortings

Prefixes and Suffixes

dp, string suffix structures, strings, two pointers

Random Task

binary search, bitmasks, combinatorics, dp, math

k-Tree

dp, implementation, trees