Playlist

brute force, data structures, sortings

RGB Substring (hard version)

data structures, dp, implementation, two pointers

Hits Different

data structures, dp, implementation, math

Queries for the Array

data structures, dfs and similar, implementation, strings, trees

Kolya and Movie Theatre

constructive algorithms, data structures, greedy

Binary String Copying

binary search, brute force, data structures, hashing, strings

Counting Rectangles

brute force, data structures, dp, implementation

Catch Overflow!

data structures, expression parsing, implementation

Sum and Product

binary search, data structures, math

Zero-Sum Prefixes

brute force, data structures, dp, greedy, implementation

Tracking Segments

binary search, brute force, data structures, two pointers

To Become Max

binary search, brute force, data structures, dp

MEX maximizing

data structures, greedy, implementation, math

Gardener and Tree

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

Least Prefix Sum

data structures, greedy

Alternating Current

data structures, greedy, implementation

Reading Books (easy version)

data structures, greedy, sortings

Distinct Characters Queries

data structures

Orac and LCM

data structures, math, number theory

Constructing the Array

constructive algorithms, data structures, sortings

Potions (Hard Version)

data structures, greedy

Good Subarrays

data structures, dp, math

Oh Sweet Beaverette

data structures, sortings

Summer Homework

brute force, data structures

Encrypting Messages

data structures

Workout plan

data structures, greedy

Sereja and Algorithm

data structures, implementation

Little Elephant and Cards

binary search, data structures

Misha and Forest

constructive algorithms, data structures, greedy, sortings, trees

Lorenzo Von Matterhorn

brute force, data structures, implementation, trees

Queue

binary search, data structures

Okabe and Boxes

data structures, greedy, trees

Glass Carving

binary search, data structures, implementation

Dima and Staircase

data structures, implementation

Lunar New Year and Food Ordering

data structures, implementation

Cat Party (Easy Edition)

data structures, implementation

Bubble Sort Graph

binary search, data structures, dp

Minimize the error

data structures, greedy, sortings

Knowledge Cards

constructive algorithms, data structures

Maximum Absurdity

data structures, dp, implementation

Two TVs

data structures, greedy, sortings

Mentors

binary search, data structures, implementation

Balance (Easy version)

brute force, data structures, implementation, number theory

Marvolo Gaunt's Ring

brute force, data structures, dp

Hyperset

brute force, data structures, implementation

Vlad and an Odd Ordering

binary search, bitmasks, data structures, dp, implementation, math, number theory

In Love

data structures, greedy

Maximum Crossings (Hard Version)

data structures, divide and conquer, sortings

Skyscrapers (easy version)

brute force, data structures, dp, greedy

Valeriy and Deque

data structures, implementation

Almost Increasing Subsequence

binary search, data structures, greedy

Fault-tolerant Network

brute force, data structures, implementation

13th Labour of Heracles

data structures, greedy, sortings, trees

The Morning Star

combinatorics, data structures, geometry, implementation, math, sortings

Powers of Two

brute force, data structures, implementation, math

Tea Tasting

binary search, data structures, implementation

Range Update Point Query

binary search, brute force, data structures

Greetings

data structures, divide and conquer, sortings

k-Amazing Numbers

binary search, data structures, implementation, two pointers

Data Structures Fan

binary search, bitmasks, data structures, dp

Minimum Grid Path

brute force, data structures, greedy, math

Knight Tournament

data structures, dsu

Friends and Gifts

constructive algorithms, data structures, math

Integers Shop

data structures, greedy, implementation

Nastya and Strange Generator

brute force, data structures, greedy, implementation

Diluc and Kaeya

data structures, dp, hashing, number theory

Air Conditioners

data structures, dp, implementation, shortest paths, sortings, two pointers

Lunar New Year and a Wander

data structures, dfs and similar, graphs, greedy, shortest paths

Yet Another Walking Robot

data structures, implementation

Equalize the Array

binary search, data structures, greedy, math, sortings

Non-zero Segments

constructive algorithms, data structures, greedy, sortings

Maximum width

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

Binary String To Subsequences

constructive algorithms, data structures, greedy, implementation

Potions (Easy Version)

brute force, data structures, dp, greedy

Little Girl and Maximum Sum

data structures, greedy, implementation, sortings

String Manipulation 1.0

*special problem, binary search, brute force, data structures, strings

Multithreading

data structures, greedy, implementation

Berpizza

data structures, implementation

Replace To Make Regular Bracket Sequence

data structures, expression parsing, math

You Are So Beautiful

data structures

Skier

data structures, implementation

Sonya and Queries

data structures, implementation

T-shirt buying

data structures, implementation

Cd and pwd commands

*special problem, data structures, implementation

Where is the Pizza?

data structures, dfs and similar, dsu, graphs, implementation, math

Rooks Defenders

data structures, implementation

Heavy Intervals

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

Candies!

data structures, dp, implementation, math

Array Game

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

New Year and Ascent Sequence

binary search, combinatorics, data structures, dp, implementation, sortings

Iva & Pav

binary search, bitmasks, data structures, greedy

Stack of Presents

data structures, implementation

Weird Sum

combinatorics, data structures, geometry, math, matrices, sortings

Inaccurate Subsequence Search

data structures, two pointers

Place for a Selfie

binary search, data structures, geometry, math

Game on Permutation

data structures, dp, games, greedy

Fighting Tournament

binary search, data structures, implementation, two pointers

NEKO's Maze Game

data structures, dsu, implementation

Alice and the Cake

data structures, greedy, implementation, sortings

Number Game

binary search, data structures, games, greedy, implementation