Extreme Subtraction

constructive algorithms, dp, greedy

Sum of Medians

greedy, math

Greedy Shopping

binary search, data structures, divide and conquer, greedy, implementation

Binary Table (Hard Version)

constructive algorithms, graphs, greedy, implementation

Valerii Against Everyone

constructive algorithms, data structures, greedy, sortings

Minimal Height Tree

graphs, greedy, shortest paths, trees

Chef Monocarp

dp, flows, graph matchings, greedy, math, sortings

Reverse Binary Strings

constructive algorithms, greedy

Marketing Scheme

brute force, constructive algorithms, greedy, math

Bandit in a City

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

Dominant Piranha

constructive algorithms, greedy

Yet Another Bookshelf

greedy, implementation

Rogue-like Game

*special problem, brute force, greedy, two pointers

Number Deletion Game

*special problem, dp, games, greedy

Neural Network Problem

*special problem, binary search, greedy

Used Markers

*special problem, greedy

Realistic Gameplay

dp, greedy

String Reversal

data structures, greedy, strings

String Deletion

binary search, data structures, greedy, two pointers

Numbers on Whiteboard

constructive algorithms, data structures, greedy, implementation, math

Barrels

greedy, implementation, sortings

Lucky Numbers (Hard Version)

dp, greedy

Lucky Numbers (Easy Version)

dp, greedy

Carrots for Rabbits

binary search, data structures, greedy, math, sortings

Bouncing Boomerangs

constructive algorithms, greedy, implementation

ABBB

brute force, data structures, greedy, strings

Boring Card Game

data structures, greedy, trees

Chess Cheater

greedy, implementation, sortings

Rock, Paper, Scissors

brute force, constructive algorithms, flows, greedy, math

Non-zero Segments

constructive algorithms, data structures, greedy, sortings

Excitation of Atoms

greedy, implementation

Arena of Greed

games, greedy

Minlexes

dp, greedy, implementation, strings

Nice Matrix

greedy, implementation, math

Hexagons

brute force, constructive algorithms, greedy, implementation, math, shortest paths

XORwice

bitmasks, greedy, math

Battle Lemmings

dp, greedy

Pokémon Army (hard version)

data structures, divide and conquer, dp, greedy, implementation

Pokémon Army (easy version)

constructive algorithms, dp, greedy

Sage's Birthday (hard version)

binary search, brute force, constructive algorithms, greedy, sortings, two pointers

Sage's Birthday (easy version)

binary search, constructive algorithms, greedy, sortings

Killjoy

greedy, implementation, math

Stairs

brute force, constructive algorithms, greedy, implementation, math

Digit Game

games, greedy, implementation

Mortal Kombat Tower

dp, graphs, greedy, shortest paths

Negative Prefixes

greedy, sortings

Two Arrays

greedy, math, sortings

Copy-paste

greedy, math

Showing Off

flows, graph matchings, greedy, implementation

Split

binary search, data structures, dp, greedy

XOR Inverse

bitmasks, data structures, divide and conquer, dp, greedy, math, sortings, strings, trees

Make Them Equal

constructive algorithms, greedy, math

New Game Plus!

constructive algorithms, greedy, math

Repainting Street

brute force, brute force, greedy

Solo mid Oracle

greedy, math, ternary search

Shurikens

data structures, greedy, implementation

The Thorny Path

greedy, math

Poman Numbers

bitmasks, greedy, math, strings

Grime Zoo

brute force, greedy, implementation, strings

Decrease the Sum of Digits

greedy, math

Minimum Product

brute force, greedy, math

Yet Another Two Integers Problem

greedy, math

Rainbow Triples

binary search, data structures, flows, greedy

Avoid Rainbow Cycles

data structures, dsu, graphs, greedy, sortings, trees

Arrays Sum

constructive algorithms, greedy, math

Egor in the Republic of Dagestan

constructive algorithms, dfs and similar, dp, graphs, greedy, shortest paths

Big Vova

brute force, greedy, math, number theory

Three Sequences

constructive algorithms, data structures, greedy, math

Maximum Product

brute force, dp, greedy, implementation, sortings

Subset Mex

greedy, implementation, math

Fixed Point Removal

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

Maximum Distributed Tree

dfs and similar, dp, greedy, implementation, math, number theory, sortings, trees

Ternary Sequence

constructive algorithms, greedy, math

Clear the Multiset

data structures, divide and conquer, dp, greedy

Binary String Reconstruction

2-sat, brute force, constructive algorithms, greedy

RPG Protagonist

brute force, greedy, math

Weights Division (hard version)

binary search, dfs and similar, greedy, sortings, trees, two pointers

Weights Division (easy version)

data structures, dfs and similar, greedy, trees

Binary String To Subsequences

constructive algorithms, data structures, greedy, implementation

Boats Competition

brute force, greedy, two pointers

Gifts Fixing

greedy

Remove Smallest

greedy, sortings

Controversial Rounds

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

Two Types of Spells

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

Colored Rectangles

dp, greedy, sortings

Substring Removal Game

games, greedy, sortings

Juggling Letters

greedy, strings

Monster Invaders

dp, greedy, implementation

Stoned Game

brute force, constructive algorithms, games, greedy

Multiples of Length

constructive algorithms, greedy, number theory

Boboniu and Bit Operations

bitmasks, brute force, dp, greedy

Boboniu and Jianghu

dp, greedy, sortings, trees

Boboniu Chats with Du

dp, greedy, sortings, two pointers

Pinkie Pie Eats Patty-cakes

constructive algorithms, greedy, math, sortings

Applejack and Storages

constructive algorithms, data structures, greedy, implementation

Rainbow Dash, Fluttershy and Chess Coloring

greedy, math

Omkar and Landslide

binary search, constructive algorithms, data structures, greedy, math

Omkar and Bed Wars

dp, greedy

Omkar and Waterslide

greedy, implementation

Omkar and Password

greedy, math