Two Permutations (Easy Version)

brute force, constructive algorithms, greedy, number theory

Tree XOR

bitmasks, dfs and similar, dp, greedy, trees

Card Game

brute force, greedy

Sets and Union

bitmasks, brute force, constructive algorithms, greedy

Increasing Sequence

greedy

Make it Alternating

combinatorics, dp, greedy

Chips on the Board

constructive algorithms, greedy

Rigged!

greedy

Iva & Pav

binary search, bitmasks, data structures, greedy

Reverse Madness

data structures, greedy

How Much Does Daytona Cost?

greedy

Clubstep

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

Autosynthesis

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

Helmets in Night Light

greedy, sortings

Jellyfish and Green Apple

bitmasks, greedy, math, number theory

Jellyfish and Undertale

brute force, greedy

Jellyfish and EVA

dp, graphs, greedy, math, probabilities

Jellyfish and Game

brute force, games, greedy, implementation

ABBC or BACB

constructive algorithms, greedy

Money Trees

binary search, greedy, math, two pointers

1D Eraser

greedy, implementation, two pointers

Good Kid

brute force, greedy, math

Replace With Product

brute force, greedy, math

The Corridor or There and Back Again

greedy, implementation

Two Vessels

brute force, greedy, math

Standard Graph Problem

data structures, graphs, greedy, trees

Prefix Purchase

greedy, implementation, sortings

Friendly Arrays

bitmasks, greedy, math

MEXanized Array

constructive algorithms, greedy, math

LIS?

data structures, greedy, implementation

Min-Sum-Max

constructive algorithms, dp, greedy

Flower-like Pseudotree

constructive algorithms, graphs, greedy, implementation, trees

Candy Party (Hard Version)

bitmasks, constructive algorithms, dp, greedy, implementation, math

Candy Party (Easy Version)

bitmasks, constructive algorithms, graphs, greedy, implementation, math

Most Different Tree

brute force, constructive algorithms, dfs and similar, greedy, hashing

Cyclic Operations

brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation

Salyg1n and the MEX Game

constructive algorithms, data structures, games, greedy, interactive

Grouped Carriages

binary search, data structures, dp, flows, greedy

Digital Wallet

dp, greedy

Future Dominators

graphs, greedy

Matrix Cascade

brute force, constructive algorithms, data structures, dp, greedy, math

Swap and Reverse

constructive algorithms, greedy, sortings, strings

Increasing and Decreasing

constructive algorithms, greedy, implementation, math

Speedrun

brute force, dfs and similar, dp, graphs, greedy, math, sortings, two pointers

Two-Colored Dominoes

constructive algorithms, greedy

Split Sort

greedy, math, sortings

Channel

greedy, implementation

Kolya and Movie Theatre

constructive algorithms, data structures, greedy

Gift Carpet

dp, greedy, implementation, strings

Four Suits

binary search, bitmasks, flows, greedy

Sorting By Multiplication

dp, greedy

Two Binary Strings

constructive algorithms, dp, greedy

Game on Permutation

data structures, dp, games, greedy

Fancy Coins

binary search, brute force, greedy, math

Andrey and Escape from Capygrad

binary search, data structures, dp, dsu, greedy, sortings

Another Permutation Problem

brute force, dp, greedy, math

Olya and Game with Arrays

constructive algorithms, greedy, math, sortings

Trees and Segments

brute force, data structures, dp, greedy, two pointers

Yet Another Permutation Problem

constructive algorithms, greedy, math, number theory

The Walkway

brute force, dp, greedy, math, number theory

Buttons

games, greedy, math

Counting Graphs

combinatorics, divide and conquer, dsu, graphs, greedy, sortings, trees

Assembly via Minimums

greedy, sortings

Maximum Rounding

greedy, implementation, math

Array Coloring

greedy, math

PermuTree (hard version)

bitmasks, dfs and similar, dp, fft, greedy, implementation, math, trees

Longest Divisors Interval

brute force, combinatorics, greedy, math, number theory

Dalton the Teacher

greedy, math

Game Bundles

brute force, constructive algorithms, dp, greedy, math

Desorting

brute force, greedy, math

Rivalries

constructive algorithms, data structures, greedy

Miriany and Matchstick

constructive algorithms, dp, greedy

Ina of the Mountain

data structures, dp, greedy, math

Imbalanced Arrays

constructive algorithms, graphs, greedy, math, sortings, two pointers

Lisa and the Martians

bitmasks, greedy, math, strings, trees

Tiles Comeback

greedy

Parity Sort

greedy, sortings, two pointers

The Third Letter

dfs and similar, dsu, graphs, greedy, implementation

Balanced Round

brute force, greedy, implementation, sortings

XOR Partition

binary search, bitmasks, data structures, divide and conquer, greedy, trees

Array Painting

constructive algorithms, greedy, two pointers

Monsters

greedy, math, sortings

Vika and the Bridge

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

The Boss's Identity

binary search, bitmasks, data structures, dfs and similar, greedy, math, sortings

Professor Higashikata

data structures, dsu, greedy, implementation, strings

Vampiric Powers, anyone?

bitmasks, brute force, dp, greedy

Hamon Odyssey

bitmasks, greedy, two pointers

The Man who became a God

greedy, sortings

Rudolf and CodeVid-23

bitmasks, dp, graphs, greedy, shortest paths

Rudolf and the Another Competition

constructive algorithms, data structures, dp, greedy, sortings

Rating System

binary search, brute force, data structures, dp, dsu, greedy, math, two pointers

Strong Password

binary search, dp, greedy, strings

Min Cost Permutation (Hard Version)

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

Min Cost Permutation (Easy Version)

brute force, constructive algorithms, greedy, math

Row Major

constructive algorithms, greedy, math, number theory, strings

Particles

dp, greedy, implementation, math

Omsk Metro (simple version)

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

Long Long

greedy, math, two pointers

Sasha and Array Coloring

greedy, sortings, two pointers

Tenzing and Necklace

divide and conquer, dp, greedy