Sakurako's Test

binary search, brute force, greedy, math, number theory

Sakurako's Task

binary search, greedy, math, number theory

Alternating String

brute force, data structures, dp, greedy, implementation, strings

Sakurako's Exam

brute force, constructive algorithms, greedy, math

Index and Maximum Value

data structures, greedy

Dora's Set

greedy, math, number theory

Iris and Adjacent Products

data structures, greedy, implementation, math

Iris and Game on the Tree

constructive algorithms, dfs and similar, games, graphs, greedy, trees

Subtangle Game (Hard Version)

data structures, dp, games, greedy, implementation

Subtangle Game (Easy Version)

dp, games, greedy, implementation

The Strict Teacher (Hard Version)

binary search, greedy, math, sortings

The Strict Teacher (Easy Version)

greedy, math, sortings

Simple Palindrome

combinatorics, constructive algorithms, greedy

Make a Palindrome

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

Colored Portals

binary search, brute force, data structures, graphs, greedy, implementation, shortest paths

Splitting Items

games, greedy, sortings

Game with Doors

brute force, greedy

Turtle and Three Sequences

brute force, data structures, dp, greedy, math, probabilities, two pointers

Turtle and Inversions (Hard Version)

brute force, data structures, divide and conquer, dp, greedy, math, two pointers

Turtle and Inversions (Easy Version)

brute force, divide and conquer, dp, greedy, math

Turtle and a MEX Problem (Hard Version)

dfs and similar, dp, graphs, greedy, implementation, math

Turtle and a MEX Problem (Easy Version)

greedy, math

Turtle and Good Pairs

constructive algorithms, greedy, sortings, strings

Turtle and Piggy Are Playing a Game 2

games, greedy, sortings

Turtle and Good Strings

greedy, strings

Counting 101

greedy

Black Circles

brute force, geometry, greedy, math

Longest Max Min Subsequence

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

Guess The Tree

binary search, brute force, dfs and similar, divide and conquer, dsu, greedy, interactive, trees

Make All Equal

greedy, implementation

Call During the Journey

binary search, brute force, graphs, greedy, shortest paths

Color Rows and Columns

dp, greedy, implementation, math

Photoshoot for Gorillas

combinatorics, data structures, greedy, math

Right Left Wrong

greedy, implementation, two pointers

Slavic's Exam

greedy, implementation, strings

Showering

greedy, implementation

Eliminating Balls With Merging (Hard Version)

binary search, brute force, data structures, divide and conquer, greedy, implementation

Eliminating Balls With Merging (Easy Version)

binary search, brute force, data structures, divide and conquer, greedy

Determine Winning Islands in Race

data structures, dp, graphs, greedy, shortest paths

Perform Operations to Maximize Score

binary search, brute force, constructive algorithms, greedy, implementation

Chips on a Line

brute force, combinatorics, dp, greedy, math

Maximize the Root

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

Even Positions

constructive algorithms, data structures, greedy

Penacony

brute force, data structures, graphs, greedy, hashing

Bomb

binary search, greedy, math

Sort

dp, greedy, sortings, strings

Scale

greedy, implementation

Squaring

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

Bouquet (Hard Version)

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

Bouquet (Easy Version)

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

Diagonals

brute force, greedy, implementation, math

Fortnite

combinatorics, constructive algorithms, games, greedy, hashing, interactive, math, number theory, strings

Wooden Game

bitmasks, greedy, math, trees

Funny Game

constructive algorithms, dsu, graphs, greedy, math, number theory, trees

Fun Game

bitmasks, constructive algorithms, greedy, math

Diverse Game

constructive algorithms, greedy, implementation

Med-imize

binary search, dp, greedy

Parity and Sum

constructive algorithms, greedy

Question Marks

greedy, implementation

Valuable Cards

brute force, dp, greedy, number theory, two pointers

Test of Love

dp, greedy, implementation

Angry Monk

greedy, math, sortings

Only Pluses

brute force, constructive algorithms, greedy, math, sortings

Grid Game

constructive algorithms, games, graph matchings, greedy, interactive

Grid Reset

constructive algorithms, greedy, implementation

Triangle Formation

brute force, greedy, implementation, math, sortings

Coloring Game

constructive algorithms, dfs and similar, games, graphs, greedy, interactive

Prime XOR Coloring

bitmasks, constructive algorithms, graphs, greedy, math, number theory

Absolute Zero

constructive algorithms, greedy, math

AND Reconstruction

bitmasks, constructive algorithms, greedy

Maximize the Last Element

greedy, implementation

Polygonal Segments

brute force, data structures, divide and conquer, dp, greedy, two pointers

Grid Puzzle

bitmasks, brute force, dp, greedy, implementation

Mad MAD Sum

brute force, greedy, math

Array Craft

constructive algorithms, greedy

Submission Bait

brute force, games, greedy, sortings

Smithing Skill

brute force, data structures, dp, greedy, math, sortings, two pointers

Two Movies

greedy, math

Substring and Subsequence

brute force, greedy, strings

Increasing Sequence with Fixed OR

bitmasks, constructive algorithms, greedy

Make Majority

greedy, implementation

Split the Multiset

brute force, greedy, implementation, math

Wonderful Tree!

brute force, data structures, dfs and similar, dsu, greedy, trees

Basil's Garden

dp, greedy

K-Sort

greedy

Upload More RAM

greedy, math

Beautiful Array

greedy, math, number theory, sortings

Mathematical Problem

brute force, dp, greedy, implementation, math, two pointers

Update Queries

data structures, greedy, sortings

Matrix Stabilization

brute force, data structures, greedy, sortings

Good Prefixes

greedy

Shuffle

dp, greedy, trees

Magnitude (Hard Version)

combinatorics, dp, greedy, math

Magnitude (Easy Version)

dp, greedy, math

array-value

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

Swap Dilemma

constructive algorithms, data structures, divide and conquer, greedy, math, sortings

Have Your Cake and Eat It Too

binary search, brute force, greedy, implementation

Corner Twist

constructive algorithms, greedy, implementation, math

Boring Day

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

Soccer

greedy, implementation, math, sortings