Discounts

greedy, sortings

Birthday

binary search, greedy, sortings

Morse Code

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

Technogoblet of Fire

implementation, sortings

Frets On Fire

binary search, sortings

Alyona and a Narrow Fridge

binary search, flows, greedy, sortings

Emotes

greedy, math, sortings

Yet Another Array Partitioning Task

constructive algorithms, greedy, sortings

Magic Stones

constructive algorithms, math, sortings

Tape

greedy, sortings

Vasya and Endless Credits

dp, flows, graph matchings, graphs, sortings

Brutality

greedy, sortings, two pointers

Lunar New Year and Number Division

greedy, implementation, math, sortings

Monotonic Renumeration

combinatorics, sortings

Array K-Coloring

greedy, sortings

Division and Union

sortings

Letters Rearranging

constructive algorithms, greedy, sortings, strings

Teams Forming

sortings

New Year and the Acquaintance Estimation

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

Ehab and subtraction

implementation, sortings

Multi-Subject Competition

greedy, sortings

Maximum Distance

dsu, graphs, shortest paths, sortings

Katya and Segments Sets

data structures, interactive, sortings

Thematic Contests

greedy, sortings

Cutting Out

binary search, sortings

Taxi drivers and Lyft

implementation, sortings

TV Shows

data structures, greedy, implementation, sortings

Views Matter

greedy, implementation, sortings

Decorate Apple Tree

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

Pick Heroes

greedy, implementation, interactive, sortings

Train Hard, Win Easy

constructive algorithms, greedy, math, sortings

Leaf Sets

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

Heist

greedy, implementation, sortings

Network Safety

dfs and similar, dsu, graphs, math, sortings

Gambling

greedy, sortings

Maximal Intersection

greedy, math, sortings

Rectangles

geometry, implementation, sortings

Doggo Recoloring

implementation, sortings

Large Triangle

binary search, geometry, sortings

Songs Compression

sortings

Photo of The Sky

brute force, implementation, math, sortings

Stages

greedy, implementation, sortings

Turn the Rectangles

greedy, sortings

Reorder the Array

combinatorics, data structures, math, sortings, two pointers

Polycarp's Practice

greedy, implementation, sortings

Median on Segments (General Case Edition)

sortings

Median on Segments (Permutations Edition)

sortings

Covered Points Count

data structures, implementation, sortings

Cutting

dp, greedy, sortings

Leaving the Bar

brute force, data structures, geometry, greedy, math, sortings

Knights of a Polygonal Table

greedy, implementation, sortings

Nastya and an Array

implementation, sortings

Getting an A

greedy, sortings

Micro-World

greedy, sortings

A Shade of Moonlight

binary search, geometry, math, sortings, two pointers

Equal Sums

implementation, sortings

Substrings Sort

sortings, strings

Game

sortings

Businessmen Problems

sortings

Petya's Exams

greedy, implementation, sortings

Divide by three, multiply by two

dfs and similar, math, sortings

Less or Equal

sortings

Well played!

greedy, sortings

Nested Segments

greedy, implementation, sortings

Watering System

math, sortings

Minimize the error

data structures, greedy, sortings

Guard Duty (medium)

binary search, dp, greedy, sortings

Runner's Problem

dp, matrices, sortings

Water Taps

binary search, greedy, sortings

Curfew

binary search, brute force, greedy, sortings

Points on the line

brute force, greedy, sortings

Olympiad

implementation, sortings

Resource Distribution

binary search, implementation, sortings

Robot Vacuum Cleaner

greedy, sortings

Swap Adjacent Elements

dfs and similar, greedy, math, sortings, two pointers

Physical Education Lessons

data structures, implementation, sortings

Too Easy Problems

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

Perun, Ult!

brute force, greedy, sortings

Generate Login

brute force, greedy, sortings

XK Segments

binary search, math, sortings, two pointers

Row of Models

greedy, sortings

Little Brother

binary search, geometry, sortings

Renovation

constructive algorithms, greedy, sortings

Sorting the Coins

dsu, implementation, sortings, two pointers

Ordering Pizza

binary search, sortings, ternary search

Fire

dp, sortings

Fair Game

implementation, sortings

Turn Off The TV

data structures, sortings

Kayaking

brute force, greedy, sortings

Mahmoud and Ehab and the function

binary search, data structures, sortings

Polycarp's phone book

data structures, implementation, sortings

Jury Meeting

greedy, sortings, two pointers

Property

greedy, sortings

Rooter's Song

constructive algorithms, data structures, geometry, implementation, sortings, two pointers

Travel Cards

greedy, implementation, sortings

Berland Elections

greedy, sortings

Two TVs

data structures, greedy, sortings

Chess Tourney

implementation, sortings

Sorting by Subsequences

dfs and similar, dsu, implementation, math, sortings

Leha and Function

combinatorics, greedy, math, number theory, sortings