Автобус

binary search, data structures, greedy, sortings

Number Deletion Game

*special problem, dp, games, greedy

Neural Network Problem

*special problem, binary search, greedy

Property

greedy, sortings

Optimizer

data structures, greedy, sortings

Mice

greedy, two pointers

New York Hotel

greedy, math

The Light Square

2-sat, dfs and similar, greedy

Constants in the language of Shakespeare

constructive algorithms, dp, greedy

Broken Monitor

brute force, constructive algorithms, greedy, implementation

Polycarp's Picture Gallery

constructive algorithms, greedy

Chicken or Fish?

greedy

Quest

dp, greedy

Kamal-ol-molk's Painting

brute force, constructive algorithms, greedy

Berland Elections

greedy, sortings

Fools and Foolproof Roads

data structures, dfs and similar, dsu, graphs, greedy

Social Network

greedy, two pointers

The table

constructive algorithms, greedy

Beavermuncher-0xFF

dfs and similar, dp, dsu, greedy, trees

Bulbo

dp, greedy

World Eater Brothers

dfs and similar, dp, greedy, trees

Compartments

combinatorics, constructive algorithms, greedy, implementation

Main Sequence

greedy, implementation

Village (Minimum)

*special problem, dp, greedy, trees

Black and White Tree

constructive algorithms, dsu, graphs, greedy, trees

Below the Diagonal

constructive algorithms, greedy, math

Vanya and Brackets

brute force, dp, expression parsing, greedy, implementation, strings

Santa Claus and Tangerines

binary search, data structures, greedy, two pointers

Nice table

brute force, constructive algorithms, greedy, math

Grouped Carriages

binary search, data structures, dp, flows, greedy

Cubes

games, greedy, implementation

Invariance of Tree

constructive algorithms, dfs and similar, greedy, trees

Sockets

greedy, sortings

Flawed Flow

constructive algorithms, flows, graphs, greedy

Distributing Parts

greedy, sortings

Colorful Points

data structures, greedy, implementation

Permutation recovery

constructive algorithms, data structures, dfs and similar, graphs, greedy, math, sortings

Order book

combinatorics, data structures, greedy

Dispute

dfs and similar, graphs, greedy

Santa Claus and a Palindrome

constructive algorithms, data structures, greedy

Solo mid Oracle

greedy, math, ternary search

Fishes

data structures, graphs, greedy, probabilities, shortest paths

Post Lamps

brute force, greedy

The way home

binary search, data structures, dp, graphs, greedy, shortest paths, sortings

Spaceship Solitaire

data structures, greedy, implementation

Towers

dp, greedy, two pointers

The Queue

brute force, greedy

Autosynthesis

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

Fedor and coupons

binary search, data structures, greedy, sortings

Treasure Hunting

binary search, dp, greedy, implementation

Well played!

greedy, sortings

The Harmonization of XOR

bitmasks, constructive algorithms, greedy, math

Cartons of milk

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

Rearrange Brackets

brute force, dp, greedy, sortings, strings

Neko and Aki's Prank

dp, greedy, trees

Candy Party (Hard Version)

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

Unstable String Sort

data structures, dfs and similar, dsu, graphs, greedy, implementation, strings

Learning to Paint

binary search, data structures, dfs and similar, dp, greedy, implementation, sortings

Wi-Fi

data structures, dp, greedy

Sum over all Substrings (Hard Version)

bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings

Rain

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

You Are Given a WASD-string...

brute force, data structures, dp, greedy, implementation, math, strings

Grime Zoo

brute force, greedy, implementation, strings

Colorings and Dominoes

combinatorics, dp, greedy, math

Sheikh (Hard Version)

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

Clique Partition

brute force, constructive algorithms, graphs, greedy, implementation

Shovels Shop

dp, greedy, sortings

MST Unification

binary search, dsu, graphs, greedy

Speedrun

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

Berland Beauty

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

Portals

data structures, dp, greedy, implementation, sortings

Tree with Small Distances

dp, graphs, greedy

Red-Blue Operations (Easy Version)

binary search, greedy, implementation, math

Euclid's nightmare

bitmasks, dfs and similar, dsu, graphs, greedy, math, sortings

Treelabeling

bitmasks, constructive algorithms, dfs and similar, games, greedy, implementation, trees

Minimax

constructive algorithms, greedy, strings

Send Boxes to Alice (Hard Version)

constructive algorithms, greedy, math, number theory, ternary search, two pointers

New Year's Puzzle

brute force, dp, graph matchings, greedy, sortings

Monsters

brute force, data structures, dfs and similar, dsu, graphs, greedy

Kirk and a Binary String (hard version)

data structures, greedy, math, strings

Flying Sort (Easy Version)

dp, greedy, two pointers

XOR Break --- Solo Version

bitmasks, constructive algorithms, greedy

The Human Equation

greedy, implementation

MEX vs DIFF

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

Bracket Walk

data structures, greedy, strings

Timofey and Black-White Tree

brute force, dfs and similar, divide and conquer, graphs, greedy, math, shortest paths, trees

Points on Plane

constructive algorithms, divide and conquer, geometry, greedy, sortings

Pencils and Boxes

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

Complete the Projects (easy version)

greedy

Money Transfers

constructive algorithms, data structures, greedy, sortings

01 Tree

constructive algorithms, data structures, dsu, greedy, sortings, trees

Challenges in school №41

brute force, constructive algorithms, games, graphs, greedy, implementation, sortings

Water Balance

data structures, geometry, greedy

Divisibility by 25

brute force, greedy

Martial Arts Tournament

binary search, brute force, greedy, math

Array Partition

binary search, data structures, greedy, two pointers

Painting the Array II

constructive algorithms, data structures, dp, greedy, implementation

The Winter Hike

constructive algorithms, greedy, math

Ehab's Last Corollary

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

Segment Intersections

brute force, greedy, implementation, math