Make Palindrome

constructive algorithms, greedy, strings

Salary Changing

binary search, greedy, sortings

Set To Max (Easy Version)

brute force, constructive algorithms, greedy

Decorate Apple Tree

constructive algorithms, dfs and similar, dp, graphs, greedy, sortings, trees

Domino for Young

dp, greedy, math

Mike and Shortcuts

dfs and similar, graphs, greedy, shortest paths

Light It Up

greedy

Beautiful Sequence

brute force, constructive algorithms, greedy

Mike and gcd problem

dp, greedy, number theory

Liebig's Barrels

greedy

Karen and Game

brute force, greedy, implementation

Photographer

greedy, sortings

Not Afraid

greedy, implementation, math

Sheikh (Easy version)

binary search, bitmasks, greedy, two pointers

Memory and De-Evolution

greedy, math

Knights of a Polygonal Table

greedy, implementation, sortings

MinOr Tree

bitmasks, dfs and similar, dsu, graphs, greedy

Ilya and Matrix

constructive algorithms, greedy, implementation, sortings

Misha and Forest

constructive algorithms, data structures, greedy, sortings, trees

Multi-Subject Competition

greedy, sortings

Unfair Game

dp, games, greedy, math, schedules

Range and Partition

binary search, constructive algorithms, data structures, greedy, two pointers

Array Shrinking

dp, greedy

Burenka and Traditions (easy version)

dp, greedy

Permutation Restoration

binary search, data structures, greedy, math, sortings, two pointers

Stars Drawing (Easy Edition)

brute force, dp, greedy

Did you mean...

dp, greedy, implementation

Coffee and Coursework (Easy version)

brute force, greedy

Double Lexicographically Minimum

greedy, strings

Tournament Countdown

constructive algorithms, greedy, interactive, number theory, probabilities

Petya and Catacombs

dsu, greedy, implementation, trees

Exams

binary search, greedy, sortings

Choosing flowers

binary search, brute force, data structures, dfs and similar, dp, greedy, sortings, two pointers

Medium Design

brute force, data structures, dp, greedy, sortings

Vasya and Robot

brute force, greedy, math

Bessie's Birthday Cake (Hard Version)

geometry, greedy, math

Vanya and Scales

brute force, dp, greedy, math, meet-in-the-middle, number theory

Bicycles

graphs, greedy, implementation, shortest paths, sortings

Torus Path

greedy, math

Olympic Medal

greedy, math

Three Paths on a Tree

dfs and similar, dp, greedy, trees

Cyclic Operations

brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation

Banh-mi

greedy, implementation, math

Rating Compression

binary search, data structures, greedy, implementation, two pointers

Lexicographically Maximum Subsequence

greedy, strings

Growing Mushrooms

greedy, sortings

Omkar and Circle

brute force, dp, games, greedy

Anton and Making Potions

binary search, dp, greedy, two pointers

Lisa and the Martians

bitmasks, greedy, math, strings, trees

Network Configuration

greedy, sortings

Division into Teams

greedy, math, sortings

Korney Korneevich and XOR (easy version)

bitmasks, dp, greedy

1D Sokoban

binary search, dp, greedy, implementation, two pointers

Omkar and the Meaning of Life

constructive algorithms, greedy, interactive

Milking cows

data structures, greedy

Annoying Present

greedy, math

Zebras

greedy

Permutation Graph

binary search, constructive algorithms, data structures, divide and conquer, greedy, shortest paths

Cram Time

greedy

Tournament

bitmasks, brute force, dfs and similar, greedy

Necklace Assembly

brute force, dfs and similar, dp, graphs, greedy, number theory

Recover it!

dfs and similar, graphs, greedy, number theory, sortings

"Or" Game

brute force, greedy

Rudolf and Imbalance

binary search, greedy, sortings, two pointers

Yet Another Subarray Problem

dp, greedy, math

Maxim and Discounts

greedy, sortings

You're Given a String...

brute force, greedy

Three-level Laser

binary search, greedy, two pointers

GCD and MST

constructive algorithms, dsu, graphs, greedy, number theory, sortings

Maximum And Queries (easy version)

binary search, bitmasks, brute force, greedy

Clear the Multiset

data structures, divide and conquer, dp, greedy

Vlad and Unfinished Business

dfs and similar, dp, greedy, trees

Feeding Chicken

constructive algorithms, greedy, implementation

Burenka and Traditions (hard version)

data structures, dp, greedy

Green and Black Tea

constructive algorithms, greedy, math

Erase and Extend (Hard Version)

binary search, data structures, greedy, hashing, string suffix structures, strings, two pointers

Recommendations

data structures, greedy, sortings

Omsk Metro (simple version)

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

Tree XOR

bitmasks, dfs and similar, dp, greedy, trees

Very Suspicious

binary search, brute force, geometry, greedy, implementation, math

Binary Table (Hard Version)

constructive algorithms, graphs, greedy, implementation

Luba And The Ticket

brute force, greedy, implementation

505

bitmasks, brute force, constructive algorithms, dp, greedy, implementation

Ksyusha and Chinchilla

constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees

Cloud of Hashtags

binary search, greedy, implementation, strings

2+ doors

2-sat, bitmasks, graphs, greedy

Maximal GCD

constructive algorithms, greedy, math

Mystical Mosaic

greedy, implementation

Edge Deletion

graphs, greedy, shortest paths

Zero Tree

dfs and similar, dp, greedy, trees

Pavel and Triangles

brute force, dp, fft, greedy, ternary search

Hometask

brute force, constructive algorithms, greedy, math

Too Many Segments (hard version)

data structures, greedy, sortings

Dirty Deeds Done Dirt Cheap

greedy, sortings

Desktop Rearrangement

data structures, greedy, implementation

Reset K Edges

binary search, data structures, dfs and similar, graphs, greedy, trees

Garbage Disposal

greedy

Dances (Hard Version)

binary search, greedy, sortings, two pointers

Andrey and Problem

greedy, math, probabilities

Serval and Rooted Tree

binary search, dfs and similar, dp, greedy, trees