Nearest Beautiful Number (hard version)

bitmasks, brute force, constructive algorithms, dfs and similar, dp, greedy

Gift Set

binary search, greedy, math, ternary search

Pokémon Army (hard version)

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

Binary Subsequence Rotation

binary search, constructive algorithms, data structures, greedy

Restorer Distance

binary search, greedy, math, sortings, ternary search

Weights Distributing

brute force, graphs, greedy, shortest paths, sortings

Omkar and Circle

brute force, dp, games, greedy

Array Shrinking

dp, greedy

Ciel the Commander

constructive algorithms, dfs and similar, divide and conquer, greedy, trees

Build Railway Stations

*special problem, greedy, trees

Double Permutation Inc.

*special problem, binary search, greedy

Beaver's Calculator 1.0

greedy

Dune II: Battle For Arrakis

*special problem, data structures, greedy, math

Teams

*special problem, binary search, greedy, math

Need For Brake

binary search, greedy, sortings

Director

constructive algorithms, greedy

T-decomposition

dfs and similar, graphs, greedy, trees

Triminoes

constructive algorithms, greedy

Merging Two Decks

constructive algorithms, greedy

Team Arrangement

constructive algorithms, greedy, implementation

C*++ Calculations

expression parsing, greedy

Optimal Sum

data structures, greedy

E-reader Display

constructive algorithms, greedy

Calendar

greedy, strings

Special Grid

brute force, dp, greedy

Closing ceremony

greedy

Parquet

combinatorics, constructive algorithms, greedy, implementation

Number Transformation

dp, greedy, number theory

Seller Bob

brute force, dp, greedy

Dynamic Problem Scoring

brute force, greedy

Subway Innovation

greedy, math, two pointers

Berland University

greedy, math

Police Patrol

greedy, implementation, math, ternary search

Restoring Increasing Sequence

binary search, brute force, greedy, implementation

Wires

dfs and similar, graphs, greedy

International Olympiad

constructive algorithms, greedy, implementation, math

Minimal Diameter Forest

constructive algorithms, dfs and similar, greedy, trees

Jamie and Binary Sequence (changed after round)

bitmasks, greedy, math

Sereja and the Arrangement of Numbers

graphs, greedy, sortings

Big Maximum Sum

data structures, dp, greedy, implementation, math, trees

Polycarp and Hay

dfs and similar, dsu, graphs, greedy, sortings

Microtransactions (easy version)

binary search, greedy

Geo Game

greedy, interactive, math

Water Taps

binary search, greedy, sortings

The Fair Nut and Strings

greedy, strings

Castle Defense

binary search, data structures, greedy, two pointers

Dasha and Puzzle

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

Olympiad in Programming and Sports

dp, flows, graphs, greedy

Dima and Containers

constructive algorithms, greedy, implementation

Cloud Computing

data structures, greedy

Sums of Digits

dp, greedy, implementation

Let's Play the Hat?

brute force, constructive algorithms, greedy, math

Microtransactions (hard version)

binary search, greedy, implementation

Ithea Plays With Chtholly

binary search, constructive algorithms, games, greedy, interactive

An overnight dance in discotheque

dfs and similar, dp, geometry, greedy, trees

Maxim and Array

constructive algorithms, data structures, greedy, math

Running Track

dp, greedy, strings, trees

Unusual Minesweeper

binary search, dfs and similar, dsu, greedy, sortings

Om Nom and Candies

brute force, greedy, math

Candy Box (hard version)

greedy, implementation, sortings

The World Is Just a Programming Task (Easy Version)

brute force, dp, greedy, implementation

TV Shows

data structures, greedy, implementation, sortings

Messages

brute force, dp, greedy, probabilities, sortings

Freedom of Choice

brute force, greedy, implementation

Stack Sorting

constructive algorithms, data structures, greedy, implementation

Jeremy Bearimy

dfs and similar, graphs, greedy, trees

Maximum Balanced Circle

constructive algorithms, dp, greedy, two pointers

Minimization

dp, greedy, sortings

Gadgets for dollars and pounds

binary search, greedy, two pointers

Graph Cost

dp, greedy, math, number theory

Ability To Convert

constructive algorithms, dp, greedy, math, strings

Destruction of a Tree

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

Rotate Columns (easy version)

bitmasks, brute force, dp, greedy, sortings

Drazil and Tiles

constructive algorithms, greedy

Inna and Pink Pony

greedy, implementation

Kirk and a Binary String (easy version)

brute force, greedy, strings

Roman Digits

brute force, combinatorics, dp, greedy, math

Into Blocks (easy version)

data structures, dsu, greedy, implementation, two pointers

Fibonacci Strings

greedy, implementation, math, number theory

Gluttony

constructive algorithms, greedy

No Palindromes

brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings

Nene and the Mex Operator

bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math

Array Shuffling

constructive algorithms, graphs, greedy

Robin Hood

binary search, greedy

Doremy's Drying Plan (Easy Version)

brute force, data structures, dp, greedy, sortings

Fox and Card Game

games, greedy, sortings

Gourmet choice

dfs and similar, dp, dsu, graphs, greedy

Bottom-Tier Reversals

constructive algorithms, greedy

Linguistics

greedy, implementation, sortings, strings

Count the Trains

binary search, data structures, greedy, sortings

Matching vs Independent Set

constructive algorithms, graphs, greedy, sortings

Cashback

data structures, dp, greedy, math

Decreasing Debts

constructive algorithms, data structures, graphs, greedy, implementation, math, two pointers

DZY Loves Modification

brute force, data structures, greedy

Pchelyonok and Segments

binary search, data structures, dp, greedy, math

Moving Chips

bitmasks, dp, greedy

Range Sorting (Easy Version)

binary search, dp, dsu, greedy, trees, two pointers

Case of Fugitive

data structures, greedy, sortings

Hanoi Factory

brute force, data structures, dp, greedy, sortings

Yet Another Division Into Teams

dp, greedy, sortings