Segments

data structures

Significant Cups

*special problem, binary search, data structures, two pointers

Автобус

binary search, data structures, greedy, sortings

Powerful array

data structures, implementation, math, two pointers

Circular RMQ

data structures

XOR and Favorite Number

data structures

Clear the Multiset

data structures, divide and conquer, dp, greedy

Erase and Extend (Hard Version)

binary search, data structures, greedy, hashing, string suffix structures, strings, two pointers

Discrete Centrifugal Jumps

data structures, dp, graphs

The Bakery

binary search, data structures, divide and conquer, dp, two pointers

Cleaning

data structures, dp, greedy, math

Almost Difference

data structures, math

Duff in the Army

data structures, trees

Non-Decreasing Dilemma

data structures, divide and conquer, math

Carrots for Rabbits

binary search, data structures, greedy, math, sortings

Three Sequences

constructive algorithms, data structures, greedy, math

Sausage Maximization

bitmasks, data structures, trees

Make It Increasing

binary search, constructive algorithms, data structures, dp, implementation

Travelling Salesman Problem

binary search, data structures, dp, greedy, shortest paths, sortings, two pointers

Minimal Segment Cover

data structures, dfs and similar, divide and conquer, dp, greedy, implementation, trees

Guess the K-th Zero (Hard version)

binary search, constructive algorithms, data structures, interactive

Great Vova Wall (Version 2)

data structures, implementation

Telepanting

binary search, data structures, dp, sortings

Special Segments of Permutation

data structures, divide and conquer, dsu, two pointers

Trees and Segments

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

Tree Master

brute force, data structures, dfs and similar, trees

Gold Transfer

binary search, data structures, dp, greedy, interactive, trees

Antenna Coverage

data structures, dp, greedy, sortings

Persistent Bookcase

bitmasks, data structures, dfs and similar, implementation

Tricky Function

data structures, divide and conquer, geometry

Equilibrium

data structures, dp, greedy

Ezzat and Grid

data structures, dp, greedy

Sum Over Zero

data structures, dfs and similar, dp

Lexicographically Small Enough

brute force, data structures, greedy, strings

Kill Anton

brute force, constructive algorithms, data structures, math, strings

Permutation Separation

data structures, divide and conquer

Anonymity Is Important

binary search, brute force, data structures, dsu, greedy, sortings

Magic Triples (Hard Version)

brute force, data structures, math, number theory

Army Creation

binary search, data structures

Not Escaping

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

Domino Principle

binary search, data structures, sortings

Yaroslav and Divisors

data structures

Two Types of Spells

binary search, data structures, greedy, implementation, math, sortings

Two Hundred Twenty One (hard version)

data structures, math

Sofia and Strings

data structures, greedy, sortings, strings, two pointers

Valera and Queries

binary search, data structures

Irrigation

binary search, data structures, implementation, sortings, trees, two pointers

LIS of Sequence

data structures, dp, greedy, hashing, math

Addition on Segments

bitmasks, data structures, divide and conquer, dp

High Cry

binary search, bitmasks, combinatorics, data structures, divide and conquer

Robots on a Grid

data structures, dfs and similar, dsu, graphs, greedy, matrices

Let Them Slide

data structures, implementation

Serge and Dining Room

binary search, data structures, graph matchings, greedy, implementation, math, trees

Case of Chocolate

data structures

Explosions?

binary search, data structures, dp, greedy, math

Fill the Matrix

data structures, greedy, math

The Number Games

data structures, greedy, trees

Anton and Permutation

brute force, data structures

Count The Rectangles

bitmasks, brute force, data structures, geometry, sortings

Kuro and GCD and XOR and SUM

binary search, bitmasks, brute force, data structures, dp, dsu, greedy, math, number theory, strings, trees

Train Maintenance

brute force, data structures, implementation

Changing Brackets

constructive algorithms, data structures, dp, greedy

Vlad and the Nice Paths (hard version)

binary search, combinatorics, data structures, dp, math, two pointers

LaIS

data structures, dp, greedy

Treeland Tour

data structures, dfs and similar, dp, trees

AI robots

data structures

Monsters (hard version)

data structures, greedy

A Heap of Heaps

brute force, data structures, math, sortings

Chain Reaction

binary search, data structures, dsu, greedy, implementation, math, number theory

Trader Problem

data structures, dsu, greedy, sortings

Short Code

data structures, dp, greedy, strings, trees

Appleman and a Sheet of Paper

data structures, implementation

Radio stations

binary search, data structures

Nikita and stack

data structures

80-th Level Archeology

brute force, data structures, greedy, sortings

Package Delivery

data structures, divide and conquer, greedy

Ralph And His Tour in Binary Country

brute force, data structures, trees

Mischievous Shooter

brute force, data structures, divide and conquer, dp, implementation

Drivers Dissatisfaction

data structures, dsu, graphs, trees

Nastya Hasn't Written a Legend

binary search, data structures

Dog Show

constructive algorithms, data structures, greedy

Chemistry Experiment

binary search, data structures, ternary search

Students' Revenge

data structures, greedy, sortings

George and Cards

binary search, data structures

Mushroom Gnomes - 2

binary search, data structures, probabilities, sortings

Thwarting Demonstrations

binary search, data structures, trees

Cup Trick

data structures

Music in Car

data structures, greedy, two pointers

Maze 2D

data structures, divide and conquer

Smart Cheater

data structures, math, probabilities

Maximum Control (medium)

data structures, dfs and similar, graphs, greedy, trees

Parking Lot

data structures

Heidi and the Turing Test (Medium)

data structures

Lucky Tickets

binary search, data structures, sortings, two pointers

Competition

data structures, greedy

Printer

binary search, data structures, implementation, sortings

Jamie and To-do List

data structures, interactive, trees

Cannon

data structures, geometry, sortings

Greedy Elevator

data structures, implementation

Palindromic Doubles

*special problem, data structures, dp