Permutation Coloring Game

brute force, dp, dsu, games, greedy, implementation, math

Good Substrings

combinatorics, data structures, data structures, dp, greedy, greedy, strings

Perfect Sandwiches

greedy, math

Copper Squander

binary search, data structures, dsu, graphs, greedy, math, sortings, ternary search

Precision Alignment

binary search, brute force, greedy, implementation

Prefix

greedy

Pancho's Permutation

constructive algorithms, dp, greedy, math

Six-Seven Bags

brute force, greedy, interactive

Lavencia Oranges

binary search, constructive algorithms, dp, greedy

Grid Filling

constructive algorithms, constructive algorithms, greedy, greedy, implementation, implementation

Beautiful Pillers

constructive algorithms, constructive algorithms, data structures, dp, greedy, implementation

Array Emptying

binary search, binary search, data structures, greedy, greedy

Target Infection

binary search, brute force, greedy, implementation, two pointers

XOR Problem

bitmasks, constructive algorithms, graphs, greedy, math

SauSaGe Bank

greedy, math

KiaKio and Energy Intervals

binary search, bitmasks, data structures, divide and conquer, dsu, greedy, trees, two pointers

K Is Important

constructive algorithms, greedy

XOR Transformations (Hard Version)

bitmasks, brute force, data structures, dfs and similar, greedy, math, sortings, strings, trees

Backrooms Hill

constructive algorithms, dp, greedy, sortings, two pointers

GCD Treasury

greedy, math, number theory

Turn Into a Palindrome

greedy, strings

Deque Malfunction

binary search, data structures, dp, greedy

Modular Tree

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

MEX Replacement

binary search, brute force, greedy, implementation, math, sortings

AND, OR, Sort!

greedy, strings

Three Piles

games, greedy, math

Good Contest

greedy

Knife's Pill Farm

data structures, greedy, math

PLUSworld

constructive algorithms, graphs, greedy

Traveling the World

combinatorics, constructive algorithms, graphs, greedy, math

Floor of MEX (Easy Version)

constructive algorithms, greedy

1 2 3 and XOR, Where Did Everybody Go?

bitmasks, data structures, divide and conquer, dp, greedy, sortings, two pointers

Plegma II: Ask Me Any Cell (Easy Version)

brute force, constructive algorithms, dp, greedy, math

What Does the Cow Say?

binary search, data structures, dfs and similar, greedy, trees

What's the Capital of France?

bitmasks, greedy, math

Maximize XOR, Minimize Operations

bitmasks, greedy

Treasure Map Destruction (Constructive Version)

2-sat, constructive algorithms, constructive algorithms, greedy, greedy

MEX Multiset

constructive algorithms, greedy

101

constructive algorithms, greedy

Moo Language School

brute force, greedy, greedy, greedy, greedy, two pointers

Plus Minus Tree

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

Magic Tiles

dp, greedy, implementation

Carrot Chopdown (Hard Version)

brute force, greedy, implementation, math

Busy Beaver

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

How Long Until Nothing Remains?

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

Even If the World Turns

communication, constructive algorithms, expression parsing, greedy, interactive, math, number theory

Hot Potatoes at the Fairy Warehouse

games, greedy, implementation

Nightcrawler

data structures, dfs and similar, dp, greedy, greedy, sortings, trees

Chronostasis

binary search, data structures, greedy

Marenol (hard version)

greedy, sortings

Marenol (easy version)

greedy

Hypercarp and Interdimensional Jumps

binary search, brute force, geometry, greedy, implementation, math

Sum of Distinct Values in a Matrix

greedy, sortings, two pointers

The Best Card

greedy, math, number theory

Spectral Components

dfs and similar, dp, dp, greedy, sortings, trees

Array Replacement

greedy, sortings

Risky Tower

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

Always Changing

dp, greedy, math, strings

Boss Fight

data structures, greedy, greedy

Rank Subsequence

brute force, greedy, implementation

Matrix Elimination

binary search, greedy, math

Excuse for Breaks

binary search, brute force, greedy, math, two pointers

Good Pair Queries

constructive algorithms, greedy, math

Maximize the Score

dp, greedy

Merge to Match

greedy, sortings

You Delete, I Delete

greedy

XOR Sorting (Hard Version)

bitmasks, data structures, greedy

XOR Sorting (Easy Version)

bitmasks, greedy

Inversion of a Subsequence

greedy, math

diss_quack and Array Game

bitmasks, brute force, games, greedy

Delete and Concatenate

greedy

Who Watches the Watchpig?

greedy

Anya Loves Trees!

dfs and similar, dp, greedy, trees, trees

Masha and the Garland

data structures, dp, greedy, implementation, math, number theory, strings

Yaroslav and Productivity

constructive algorithms, dp, greedy, math, number theory

Stepan and Permutation

constructive algorithms, dfs and similar, dsu, greedy, math, number theory, sortings, sortings, sortings

Nikita and Books

greedy, greedy, math, math, sortings, sortings

Iskander and Drawings

dp, games, greedy, strings

Product of Closures

bitmasks, brute force, constructive algorithms, greedy, implementation, math, number theory

Predominant Frequency Division

data structures, greedy, implementation, math

Summmon

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

A Bit Odd

data structures, games, greedy, math

An Alternative Way

dp, greedy, math

RemovevomeR

greedy

Divide and Conquer

greedy, math, number theory

Another Popcount Problem

greedy

Decidophobia

greedy, math, sortings, two pointers

Nim Game Is XOR Game

constructive algorithms, games, greedy, math

Infinite Work

combinatorics, graphs, greedy, math, trees

Cake Trial

dp, greedy

Storming Arasaka

greedy, math, number theory

Another Puzzle from Papyrus

greedy, math, sortings

Slime and Queries

data structures, greedy, trees

Paint the Array

data structures, dp, greedy

Permutation Commutation

data structures, graphs, greedy

Fullmetal Bitchemist

constructive algorithms, greedy, math

Duck Surplus

binary search, greedy

Annoying the Ghost

brute force, greedy

Destroying Towers

games, greedy, schedules

Omsk Programmers

brute force, greedy, greedy, math, math