Colorful Grid

constructive algorithms

Feeding Chicken

constructive algorithms, greedy, implementation

Crazy Diamond

constructive algorithms, sortings

Minimum Diameter Tree

constructive algorithms, implementation, trees

Messy

constructive algorithms

Fix a Tree

constructive algorithms, dfs and similar, dsu, graphs, trees

Palindromic Matrix

constructive algorithms, implementation

Balanced Removals (Easier)

constructive algorithms, geometry, greedy

Cyclic Rotation

constructive algorithms, greedy, implementation, two pointers

Aroma's Search

brute force, constructive algorithms, geometry, greedy, implementation

Marina and Vasya

constructive algorithms, greedy, strings

Find a Mine

binary search, constructive algorithms, geometry, greedy, interactive, math

Relatively Prime Graph

brute force, constructive algorithms, graphs, greedy, math

Matrix Cascade

brute force, constructive algorithms, data structures, dp, greedy, math

Asya And Kittens

constructive algorithms, dsu

Lexicographically Largest

binary search, constructive algorithms, data structures, greedy, sortings

Different Rules

constructive algorithms, greedy, implementation, math

Candy Party (Easy Version)

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

Bitwise Operation Wizard

bitmasks, constructive algorithms, greedy, interactive, math

Chopping Carrots (Easy Version)

binary search, brute force, constructive algorithms, greedy, number theory

Ira and Flamenco

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

Doremy's Connecting Plan

constructive algorithms, greedy, math, sortings

3-Coloring

constructive algorithms, games, interactive

Domino (easy version)

constructive algorithms, math

Singers' Tour

constructive algorithms, math

Binary Search

binary search, constructive algorithms, greedy

The Number of Imposters

constructive algorithms, dfs and similar, dp, dsu, graphs

RPD and Rap Sheet (Easy Version)

bitmasks, constructive algorithms, interactive, math

Boris and His Amazing Haircut

constructive algorithms, data structures, dp, dsu, greedy, sortings

GCD Table

constructive algorithms, greedy, number theory

Alyona and mex

constructive algorithms, greedy

Bakry and Partitioning

bitmasks, constructive algorithms, dfs and similar, dp, graphs, trees

Array Painting

constructive algorithms, greedy, two pointers

Walk on Matrix

bitmasks, constructive algorithms, math

Mathematical Problem

brute force, constructive algorithms, geometry, math

Manipulating History

constructive algorithms, greedy, strings

Equate Multisets

constructive algorithms, data structures, greedy, math, number theory

Neutral Tonality

constructive algorithms, greedy, sortings, two pointers

Xenia and Weights

constructive algorithms, dfs and similar, dp, graphs, greedy, shortest paths

Johnny and Contribution

constructive algorithms, graphs, greedy, sortings

Long Beautiful Integer

constructive algorithms, greedy, implementation, strings

MEX and Increments

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

Harmonious Graph

constructive algorithms, dfs and similar, dsu, graphs, greedy, sortings

Shinju and the Lost Permutation

constructive algorithms, math

Ceil Divisions

brute force, constructive algorithms, math, number theory

Traps

constructive algorithms, greedy, sortings

The Third Problem

combinatorics, constructive algorithms, math

Vasya and Chess

constructive algorithms, games, math

Link Cut Centroids

constructive algorithms, dfs and similar, graphs, trees

Pinkie Pie Eats Patty-cakes

constructive algorithms, greedy, math, sortings

Helping the Nature

constructive algorithms, data structures, greedy

Bits

bitmasks, constructive algorithms

Soldier and Number Game

constructive algorithms, dp, math, number theory

Baby Ehab Partitions Again

bitmasks, constructive algorithms, dp, math

Ehab the Xorcist

bitmasks, constructive algorithms, greedy, number theory

Spy-string

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

Array Destruction

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

Prefix Flip (Hard Version)

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

Another Problem About Dividing Numbers

constructive algorithms, math, number theory

Solve The Maze

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

Дефрагментация памяти

constructive algorithms, greedy, implementation

Black-and-White Cube

combinatorics, constructive algorithms

Hobbits' Party

constructive algorithms, greedy

Interactive Bulls and Cows (Easy)

brute force, constructive algorithms, implementation

Set Theory

brute force, constructive algorithms

Practice

constructive algorithms, divide and conquer, implementation

Suspects

constructive algorithms, data structures, implementation

Points and Segments (easy)

constructive algorithms, sortings

Cycles

binary search, constructive algorithms, graphs, greedy

Hidden Word

brute force, constructive algorithms, implementation, strings

Beauty Pageant

brute force, constructive algorithms, greedy

Bear and Two Paths

constructive algorithms, graphs

Party

constructive algorithms, graphs, math

Fish Weight

constructive algorithms, greedy

Tram

constructive algorithms, implementation, math

Permutation Cycle

brute force, constructive algorithms

Anya and Ghosts

constructive algorithms, greedy

Squares and not squares

constructive algorithms, greedy

Strange Addition

brute force, constructive algorithms, implementation

Marlin

constructive algorithms

Hometask

brute force, constructive algorithms, greedy, math

Jamie and Interesting Graph

constructive algorithms, graphs, shortest paths

From Y to Y

constructive algorithms

Short Program

bitmasks, constructive algorithms

Plus and Square Root

constructive algorithms, math

Slava and tanks

constructive algorithms

Decorate Apple Tree

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

Set To Max (Easy Version)

brute force, constructive algorithms, greedy

New Year Book Reading

constructive algorithms, greedy, implementation, math

Code For 1

constructive algorithms, dfs and similar, divide and conquer

The Phone Number

constructive algorithms, greedy

Anya and Smartphone

constructive algorithms, data structures, implementation

Plasticine zebra

constructive algorithms, implementation

Plate Game

constructive algorithms, games, math

Bear and Forgotten Tree 3

constructive algorithms, graphs, trees

Cows and Sequence

constructive algorithms, data structures, implementation

League of Leesins

constructive algorithms, implementation

Alex's whims

constructive algorithms, graphs, greedy, shortest paths, trees

Sequence Transformation

constructive algorithms, math

Matrix and Shifts

brute force, constructive algorithms, greedy, implementation