Motarack's Birthday

binary search, greedy, ternary search

Bonus Distribution

*special problem, binary search, greedy, sortings

ConneR and the A.R.C. Markland-N

binary search, brute force, implementation

Irreducible Anagrams

binary search, constructive algorithms, data structures, strings, two pointers

Minimax Problem

binary search, bitmasks, dp

Deadline

binary search, brute force, math, ternary search

Classical?

binary search, combinatorics, number theory

New Year and Conference

binary search, data structures, hashing, sortings

New Year and Ascent Sequence

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

New Year and Handle Change

binary search, dp

Verse For Santa

binary search, brute force, implementation

Шардирование постов

*special problem, binary search, interactive

Common Number

binary search, combinatorics, dp, math

K Integers

binary search, data structures

Everyone is a Winner!

binary search, math, meet-in-the-middle, number theory

A Game with Traps

binary search, dp, greedy, sortings

Obtain Two Zeroes

binary search, math

Yet Another Monster Killing Problem

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

Cheap Robot

binary search, dsu, graphs, shortest paths, trees

Voting (Hard Version)

binary search, data structures, greedy

Salary Changing

binary search, greedy, sortings

Divide The Students

binary search, greedy, math

The Parade

binary search, greedy

Show Must Go On

binary search, brute force, greedy, shortest paths

Good Numbers (hard version)

binary search, greedy, math, meet-in-the-middle

Minimizing Difference

binary search, constructive algorithms, greedy, sortings, ternary search, two pointers

AB-string

binary search, combinatorics, dp, strings

Balanced Playlist

binary search, data structures, implementation

Balanced Removals (Harder)

binary search, constructive algorithms, divide and conquer, greedy, implementation, sortings

Alice and the Unfair Game

binary search, data structures, dp, dsu

Arson In Berland Forest

binary search, graphs, graphs, shortest paths

Rock Is Push

binary search, dp

Wooden Raft

binary search, math, number theory

Save the Nature

binary search, greedy

Choose a Square

binary search, data structures, sortings

Perfect Team

binary search, math

Gardener Alex

binary search, data structures

The Number Of Good Substrings

binary search, bitmasks, brute force

Creating a Character

binary search, math

Numerical Sequence (hard version)

binary search, math

Numerical Sequence (easy version)

binary search, brute force, math

Road Repair in Treeland

*special problem, binary search, dp, trees

Double Permutation Inc.

*special problem, binary search, greedy

Teams

*special problem, binary search, greedy, math

Restore Permutation

binary search, data structures, greedy, implementation

Uniqueness

binary search, brute force, implementation, two pointers

Remove the Substring (hard version)

binary search, greedy, implementation, two pointers

You Are Given Some Letters...

binary search, implementation, math

Treasure Hunting

binary search, dp, greedy, implementation

Maximum Median

binary search, greedy, math, sortings

Welfare State

binary search, brute force, data structures, sortings

Culture Code

binary search, combinatorics, data structures, dp, shortest paths, sortings

Sport Mafia

binary search, brute force, math

Tokitsukaze and Explosion

binary search, greedy

Letters Shop

binary search, implementation, strings

The Doctor Meets Vader (Easy)

binary search, sortings

Computer Game

binary search, math

Maximum Sine

binary search, data structures, number theory

Irrigation

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

Serge and Dining Room

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

Stock Exchange

binary search, flows, graphs

Digits Sequence (Hard Edition)

binary search, divide and conquer, implementation

Electrification

binary search, brute force, greedy

Wheels

*special problem, binary search, greedy

Sliding Doors

*special problem, binary search

Increasing by Modulo

binary search, greedy

Range Deleting

binary search, combinatorics, data structures, two pointers

Cute Sequences

binary search, brute force, greedy, math

A Tale of Two Lands

binary search, sortings, two pointers

Microtransactions (hard version)

binary search, greedy, implementation

Microtransactions (easy version)

binary search, greedy

Strange device

binary search, interactive, math, trees

The Party and Sweets

binary search, constructive algorithms, greedy, implementation, math, sortings, two pointers

Minimum Array

binary search, data structures, greedy

Match Points

binary search, greedy, sortings, ternary search, two pointers

Serval and Snake

binary search, brute force, interactive

Serval and Rooted Tree

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

Born This Way

binary search, brute force, two pointers

Privatization of Roads in Treeland

binary search, constructive algorithms, dfs and similar, graphs, greedy, trees

Sushi for Two

binary search, greedy, implementation

Nastya Hasn't Written a Legend

binary search, data structures

Stressful Training

binary search, greedy

Birthday

binary search, greedy, sortings

Legendary Tree

binary search, interactive, trees

Morse Code

binary search, data structures, dp, hashing, sortings, string suffix structures, strings

Frets On Fire

binary search, sortings

Alyona and a Narrow Fridge

binary search, flows, greedy, sortings

Coffee and Coursework (Hard Version)

binary search, greedy

Magic Ship

binary search

Arithmetic Progression

binary search, interactive, number theory, probabilities

Creative Snap

binary search, brute force, divide and conquer, math

Sasha and a Patient Friend

binary search, data structures, implementation

MST Unification

binary search, dsu, graphs, greedy

Vasya and Maximum Profit

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

Game with modulo

binary search, constructive algorithms, interactive

Elongated Matrix

binary search, bitmasks, brute force, dp, graphs

Trucks and Cities

binary search, dp

Andrew and Taxi

binary search, dfs and similar, graphs

NN and the Optical Illusion

binary search, geometry, math

Cookies

binary search, data structures, dfs and similar, dp, games, trees