Constellation

implementation

Interactive Bulls and Cows (Easy)

brute force, constructive algorithms, implementation

Martian Architecture

implementation

Champions' League

implementation

Bender Problem

implementation

Black Friday

*special problem, implementation

Poisonous Swamp

*special problem, *special problem, implementation, implementation

Дефрагментация памяти

constructive algorithms, greedy, implementation

Table

*special problem, greedy, implementation, math

Array Sorting

*special problem, implementation

Reverse It!

*special problem, implementation

Solve The Maze

constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, shortest paths

George and Job

dp, implementation

Color the Fence

data structures, dp, greedy, implementation

Little Girl and Maximum XOR

bitmasks, dp, greedy, implementation, math

Prefix Flip (Hard Version)

constructive algorithms, data structures, implementation, strings, two pointers

Sleeping Schedule

dp, implementation

Array Destruction

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

Eugene and an array

binary search, data structures, implementation, two pointers

Palindrome Transformation

brute force, greedy, implementation

Hills And Valleys

brute force, implementation

Monsters And Spells

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

Manhattan Subarrays

brute force, geometry, greedy, implementation

Nezzar and Symmetric Array

implementation, math, sortings

Bear and Prime Numbers

binary search, brute force, data structures, dp, implementation, math, number theory

Program

data structures, dp, implementation, strings

Close Tuples (hard version)

binary search, combinatorics, implementation, math, sortings, two pointers

MEX and Increments

constructive algorithms, data structures, dp, greedy, implementation, math, sortings

Training Session

combinatorics, data structures, geometry, implementation, math

Journey

dfs and similar, dp, dsu, implementation

Multiplicity

data structures, dp, implementation, math, number theory

Monoblock

combinatorics, data structures, implementation, math

Long Beautiful Integer

constructive algorithms, greedy, implementation, strings

Arithmetic Progression

implementation, sortings

Ladder

dp, implementation, two pointers

Pekora and Trampoline

brute force, data structures, dp, greedy, implementation

Berry Jam

data structures, dp, greedy, implementation

The Third Letter

dfs and similar, dsu, graphs, greedy, implementation

k-th equality

brute force, implementation, math

0, 1, 2, Tree!

bitmasks, brute force, greedy, implementation, trees

Trailing Loves (or L'oeufs?)

brute force, implementation, math, number theory

Remove the Substring (hard version)

binary search, greedy, implementation, two pointers

Promising String (easy version)

brute force, implementation, math, strings

Cross Coloring

data structures, implementation, math

Long Inversions

brute force, greedy, implementation, sortings

Ira and Flamenco

combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers

L-shapes

dfs and similar, implementation

Different Rules

constructive algorithms, greedy, implementation, math

Candy Party (Easy Version)

bitmasks, constructive algorithms, graphs, greedy, implementation, math

Covered Points Count

data structures, implementation, sortings

Extra Element

implementation, math

Shurikens

data structures, greedy, implementation

Not Equal on a Segment

data structures, implementation

Average Superhero Gang Power

brute force, implementation, math

Yet Another Monster Fight

binary search, dp, greedy, implementation, math

Forming Teams

dfs and similar, implementation

Aroma's Search

brute force, constructive algorithms, geometry, greedy, implementation

Binary Numbers AND Sum

data structures, implementation, math

Cyclic Rotation

constructive algorithms, greedy, implementation, two pointers

Triangles

greedy, implementation

BerOS file system

implementation

Bouncy Ball

brute force, dfs and similar, implementation

Two Strings Swaps

implementation

Palindromic Matrix

constructive algorithms, implementation

Karen and Game

brute force, greedy, implementation

Guest From the Past

implementation, math

Minimum Diameter Tree

constructive algorithms, implementation, trees

Cut and Paste

implementation, math

Feeding Chicken

constructive algorithms, greedy, implementation

Very Suspicious

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

Long Jumps

binary search, greedy, implementation

School Marks

greedy, implementation

Mail Stamps

data structures, dfs and similar, graphs, implementation

Finite or not?

implementation, math

Masha and geometric depression

brute force, implementation, math

Efim and Strange Grade

dp, implementation, math

Save Energy!

binary search, implementation, math

Guess Your Way Out!

implementation, math, trees

Petya's Exams

greedy, implementation, sortings

Polyline

constructive algorithms, implementation

Yet Another Ball Problem

constructive algorithms, implementation

Tokitsukaze and Meeting

data structures, implementation, math

Median Smoothing

implementation

Unfair Poll

binary search, constructive algorithms, implementation, math

Subsequence Counting

bitmasks, constructive algorithms, greedy, implementation

Devu and Partitioning of the Array

brute force, constructive algorithms, implementation, number theory

Graph And Its Complement

constructive algorithms, graphs, implementation

Matrix Walk

implementation

Anton and Chess

implementation

Ciel and Robot

binary search, implementation, math

Portal

brute force, data structures, dp, greedy, implementation

Three Logos

bitmasks, brute force, constructive algorithms, geometry, implementation, math

Multicolored Cars

data structures, implementation

Find Pair

implementation, math, sortings

Predict Outcome of the Game

brute force, implementation, math

Laboratory Work

implementation, math

About Bacteria

implementation, math

Four Segments

brute force, constructive algorithms, geometry, implementation, math

Toy Sum

greedy, implementation, math

Balls and Boxes

constructive algorithms, greedy, implementation