Boboniu Walks on Graph

brute force, dfs and similar, graphs, hashing

505

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

Fix You

brute force, greedy, implementation

Segment Intersections

brute force, greedy, implementation, math

Good String

brute force, dp, greedy, two pointers

Array Walk

brute force, dp, greedy

Captain Flint and Crew Recruitment

brute force, greedy, math, number theory

a-Good String

bitmasks, brute force, divide and conquer, dp, implementation

Koa and the Beach (Easy Version)

brute force, dp, greedy

Rearrange

brute force, constructive algorithms, graphs, greedy, sortings

Common Subsequence

brute force

Create The Teams

brute force, dp, greedy, implementation, sortings

Three Indices

brute force, data structures

New Passenger Trams

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

Choosing flowers

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

Dubious Cyrpto

binary search, brute force, math, number theory

Acacius and String

brute force, implementation, strings

Tree Modification

brute force, constructive algorithms, dfs and similar, graph matchings, graphs, trees

Replace by MEX

brute force, constructive algorithms, sortings

Cyclic Shifts Sorting

brute force, constructive algorithms, implementation, sortings

Sum of Digits

brute force, constructive algorithms, dp, greedy

Omkar and Circle

brute force, dp, games, greedy

Asterism (Easy Version)

binary search, brute force, combinatorics, math, number theory, sortings

Codeforces Subsequences

brute force, constructive algorithms, greedy, math, strings

C+=

brute force, greedy, implementation, math

Necklace Assembly

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

Two Arrays

binary search, brute force, combinatorics, constructive algorithms, dp, two pointers

Maximum Subsequence Value

brute force, constructive algorithms

Ehab and Prefix MEXs

brute force, constructive algorithms, greedy

XXXXX

brute force, data structures, number theory, two pointers

Odd Selection

brute force, implementation, math

Johnny and His Hobbies

bitmasks, brute force

Binary Median

binary search, bitmasks, brute force, constructive algorithms

Spy-string

bitmasks, brute force, constructive algorithms, dp, hashing, strings

RC Kaboom Show

binary search, brute force, data structures, geometry, math

New Theatre Square

brute force, dp, greedy, implementation, two pointers

Berland Poker

brute force, greedy, math

The Best Vacation

binary search, brute force, greedy, implementation, two pointers

Sequence with Digits

brute force, implementation, math

Not So Simple Polygon Embedding

binary search, brute force, geometry, math

Decreasing Heights

brute force, dp

K-periodic Garland

brute force, dp, greedy

Special Elements

brute force, implementation, two pointers

Square?

brute force, implementation, math

Phoenix and Berries

brute force, dp, greedy, math

Card Constructions

binary search, brute force, dp, math

Restore the Permutation by Sorted Segments

brute force, constructive algorithms, data structures, greedy, implementation

Weights Distributing

brute force, graphs, greedy, shortest paths, sortings

Constant Palindrome Sum

brute force, data structures, greedy, two pointers

Candies

brute force, math

Make It Ascending

bitmasks, brute force, dp

Nastya and CBS

brute force, data structures, hashing

Nastya and Strange Generator

brute force, data structures, greedy, implementation

Filling Diamonds

brute force, dp, implementation, math

Perfect Triples

bitmasks, brute force, constructive algorithms, divide and conquer, math

Chiori and Doll Picking (hard version)

bitmasks, brute force, combinatorics, math

Chiori and Doll Picking (easy version)

bitmasks, brute force, combinatorics, math

Three Blocks Palindrome (hard version)

brute force, data structures, dp, two pointers

Three Blocks Palindrome (easy version)

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

Substring Search

bitmasks, brute force, fft

Circle of Monsters

brute force, constructive algorithms, greedy, math

Road to 1600

brute force, constructive algorithms

Challenges in school №41

brute force, constructive algorithms, games, graphs, greedy, implementation, sortings

Composite Coloring

brute force, constructive algorithms, greedy, math, number theory

Elementary!

*special problem, brute force, dp, strings

K-th Beautiful String

binary search, brute force, combinatorics, implementation, math

Infinite Path

brute force, dfs and similar, graphs, math, number theory

Princesses and Princes

brute force, graphs, greedy

Wise Men (Easy Version)

bitmasks, brute force, dp, meet-in-the-middle

Ehab's REAL Number Theory Problem

brute force, dfs and similar, graphs, number theory, shortest paths

Yet Another Palindrome Problem

brute force, strings

Even Subset Sum Problem

brute force, dp, greedy, implementation

Remove Adjacent

brute force, constructive algorithms, greedy, strings

Blocks and Sensors

brute force

World of Darkraft: Battle for Azathoth

brute force, data structures, sortings

String Modification

brute force, constructive algorithms, implementation, sortings, strings

Skyscrapers (easy version)

brute force, data structures, dp, greedy

Fast Food Restaurant

brute force, greedy, implementation

Construct the Binary Tree

brute force, constructive algorithms, trees

Three Integers

brute force, math

Perform the Combo

brute force

Cow and Message

brute force, dp, math, strings

Kuroni and Antihype

bitmasks, brute force, dp, dsu, graphs

Kuroni and Impossible Calculation

brute force, combinatorics, math, number theory

Kuroni and the Gifts

brute force, constructive algorithms, greedy, sortings

Longest Palindrome

brute force, constructive algorithms, greedy, implementation, strings

Keep talking and nobody explodes -- easy

bitmasks, brute force, expression parsing

Anu Has a Function

brute force, greedy, math

ConneR and the A.R.C. Markland-N

binary search, brute force, implementation

Aroma's Search

brute force, constructive algorithms, geometry, greedy, implementation

Mind Control

brute force, data structures, implementation

Deadline

binary search, brute force, math, ternary search

Hyperset

brute force, data structures, implementation

Harry The Potter

brute force, constructive algorithms, dp, fft, implementation, math

Madhouse (Hard version)

brute force, constructive algorithms, hashing, interactive, math

Madhouse (Easy version)

brute force, constructive algorithms, interactive, math

Delete a Segment

brute force, constructive algorithms, data structures, dp, graphs, sortings, trees, two pointers

Dr. Evil Underscores

bitmasks, brute force, dfs and similar, divide and conquer, dp, greedy, strings, trees

Fadi and LCM

brute force, math, number theory

Verse For Santa

binary search, brute force, implementation