Petya and Staircases

implementation, sortings

Collecting Game

binary search, dp, greedy, sortings, two pointers

Passwords

implementation, math, sortings, strings

PolandBall and Game

binary search, data structures, games, greedy, sortings, strings

Lala Land and Apple Trees

brute force, implementation, sortings

Anton and Classes

greedy, sortings

Combination

greedy, sortings

New Bus Route

implementation, sortings

Urbanization

greedy, number theory, sortings

Correct Solution?

implementation, sortings

Making a String

greedy, sortings

Little Robber Girl's Zoo

constructive algorithms, implementation, sortings

Chess Tourney

implementation, sortings

Technogoblet of Fire

implementation, sortings

Sereja and Stairs

greedy, implementation, sortings

Sockets

greedy, implementation, sortings

Fruits

greedy, implementation, sortings

Another Sorting Problem

data structures, sortings, strings

Matchmaker

*special problem, greedy, sortings

Vanya and Lanterns

binary search, implementation, math, sortings

BerSU Ball

dfs and similar, dp, graph matchings, greedy, sortings, two pointers

Kuriyama Mirai's Stones

dp, implementation, sortings

Less or Equal

sortings

Even-Odd Game

dp, games, greedy, sortings

Sorted Adjacent Differences

constructive algorithms, sortings

Young Explorers

dp, greedy, sortings

Assembly via Minimums

greedy, sortings

Building Permutation

greedy, implementation, sortings

Maximum Product

brute force, dp, greedy, implementation, sortings

Balanced Team

sortings, two pointers

Stable Groups

greedy, sortings

Collecting Packages

implementation, sortings

Divisibility by 2^n

greedy, math, sortings

Next Test

implementation, sortings

Forming Triangles

combinatorics, constructive algorithms, math, sortings

Friends and the Restaurant

greedy, sortings, two pointers

Make Equal With Mod

constructive algorithms, math, number theory, sortings

WeirdSort

dfs and similar, sortings

Three Activities

brute force, dp, greedy, implementation, sortings

Matryoshkas

data structures, greedy, sortings

Rudolf and the Another Competition

constructive algorithms, data structures, dp, greedy, sortings

Turtle Tenacity: Continual Mods

constructive algorithms, greedy, math, number theory, sortings

Great Sequence

brute force, greedy, sortings

Soldier and Badges

brute force, greedy, implementation, sortings

Double Sort

implementation, sortings

Diamond Miner

geometry, greedy, math, sortings

Weight of the System of Nested Segments

greedy, hashing, implementation, sortings

Minimum Notation

data structures, greedy, math, sortings

A-B-C Sort

constructive algorithms, implementation, sortings

Hemose Shopping

constructive algorithms, dsu, math, sortings

Dominated Subarray

greedy, implementation, sortings, strings, two pointers

Equalize

binary search, greedy, sortings, two pointers

Appleman and Toastman

greedy, sortings

Ehab Is an Odd Person

sortings

Chat Order

*special problem, binary search, constructive algorithms, data structures, sortings

Prefix Sum Addicts

constructive algorithms, greedy, math, sortings

Playing in a Casino

math, sortings

Birthday

binary search, greedy, sortings

Trust Nobody

brute force, greedy, implementation, sortings

Virus

greedy, implementation, sortings

Pursuit

binary search, brute force, greedy, sortings

Devu, the Dumb Guy

implementation, sortings

Filya and Homework

implementation, sortings

Incinerate

binary search, brute force, data structures, implementation, math, sortings

Vika and the Bridge

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

Morning Jogging

constructive algorithms, greedy, sortings

Polycarp's Practice

greedy, implementation, sortings

Cutting

dp, greedy, sortings

Dishonest Sellers

constructive algorithms, greedy, sortings

Beautiful Paintings

greedy, sortings

Alyona and Mex

sortings

Exam in BerSU (easy version)

greedy, sortings

SwapSort

greedy, implementation, sortings

Points on the line

brute force, greedy, sortings

Micro-World

greedy, sortings

Megacity

binary search, greedy, implementation, sortings

Cards with Numbers

constructive algorithms, sortings

Vladik and Complicated Book

implementation, sortings

Growing Mushrooms

greedy, sortings

Taxi drivers and Lyft

implementation, sortings

Potions Homework

implementation, sortings

Cottage Village

implementation, sortings

April Fools' Problem (easy)

greedy, sortings

Trading Business

greedy, sortings

Sort the Array

implementation, sortings

Pashmak and Flowers

combinatorics, implementation, sortings

Queries about less or equal elements

binary search, data structures, sortings, two pointers

Queue

greedy, implementation, sortings

Mere Array

constructive algorithms, math, number theory, sortings

Strange Birthday Party

binary search, dp, greedy, sortings, two pointers

Yet Another Problem About Pairs Satisfying an Inequality

binary search, data structures, dp, greedy, sortings

Strong Vertices

math, sortings, trees

Slay the Dragon

binary search, greedy, sortings, ternary search

Blue-Red Permutation

greedy, math, sortings

Negative Prefixes

greedy, sortings

Not Sitting

games, greedy, sortings

Longest Strike

data structures, greedy, implementation, sortings, two pointers

Jeff and Periods

implementation, sortings

Saving the City

dp, greedy, math, sortings

Parity Shuffle Sorting

constructive algorithms, sortings