Fibonacci Strings

greedy, implementation, math, number theory

Burenka and Traditions (hard version)

data structures, dp, greedy

Burenka and Traditions (easy version)

dp, greedy

Madoka and The Corruption Scheme

combinatorics, constructive algorithms, greedy, math

Madoka and Formal Statement

greedy

Robot in a Hallway

data structures, dp, greedy, implementation, ternary search

2-3 Moves

greedy, math

Long Way Home

data structures, divide and conquer, dp, geometry, graphs, greedy, shortest paths

2+ doors

2-sat, bitmasks, graphs, greedy

Beautiful Array

constructive algorithms, greedy, math

Crossmarket

constructive algorithms, greedy, math

Color with Occurrences

brute force, data structures, dp, greedy, strings

Minimum Varied Number

greedy

Remove Prefix

data structures, greedy, implementation

Cross Swapping

2-sat, data structures, dsu, greedy, matrices

Tournament Countdown

constructive algorithms, greedy, interactive, number theory, probabilities

Traveling Salesman Problem

geometry, greedy, implementation

Empty Graph

binary search, constructive algorithms, data structures, greedy, shortest paths

Sort Zero

greedy, sortings

Woeful Permutation

constructive algorithms, greedy, number theory

Wonderful Permutation

greedy, implementation

XOR Triangle

bitmasks, brute force, constructive algorithms, dp, greedy, math

Rain

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

Color the Picture

constructive algorithms, greedy, math

XOR Tree

bitmasks, data structures, dfs and similar, dsu, greedy, trees

Rorororobot

binary search, data structures, greedy, math

Recover an RBS

constructive algorithms, greedy, implementation, strings

Three Doors

brute force, greedy, implementation, math

Difference Operations

greedy, math

DFS Trees

dfs and similar, dsu, graphs, greedy, sortings, trees

Doremy's IQ

binary search, constructive algorithms, greedy, implementation

Qpwoeirut and Vertices

binary search, data structures, dfs and similar, divide and conquer, dsu, greedy, trees

Chopping Carrots (Hard Version)

brute force, constructive algorithms, data structures, dp, greedy, math, number theory, two pointers

Chopping Carrots (Easy Version)

binary search, brute force, constructive algorithms, greedy, number theory

Qpwoeirut And The City

dp, flows, greedy, implementation

Making Towers

dp, greedy, math

Another String Minimization Problem

2-sat, constructive algorithms, greedy, string suffix structures, strings

Mark and Professor Koro

binary search, bitmasks, brute force, combinatorics, data structures, greedy

Mark and Lightbulbs

combinatorics, constructive algorithms, greedy, math, sortings

Mark the Dust Sweeper

constructive algorithms, greedy, implementation

Mark the Photographer

greedy, sortings

Virus

greedy, implementation, sortings

Luke is a Foodie

brute force, greedy, implementation

Two 0-1 Sequences

constructive algorithms, greedy

Good Key, Bad Key

bitmasks, brute force, dp, greedy, math

Yet Another Problem About Pairs Satisfying an Inequality

binary search, data structures, dp, greedy, sortings

Equate Multisets

constructive algorithms, data structures, greedy, math, number theory

Not a Cheap String

greedy

Train and Queries

data structures, greedy

Polycarp Writes a String from Memory

greedy

Text Editor

brute force, dp, greedy, strings

Permutation Restoration

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

Schedule Management

binary search, greedy, implementation, two pointers

Permutation

greedy

Puzzle

constructive algorithms, dp, greedy

River Locks

binary search, dp, greedy, math

Helping the Nature

constructive algorithms, data structures, greedy

Optimal Path

constructive algorithms, greedy, math

Three Days Grace

data structures, dp, greedy, math, number theory, two pointers

Almost Triple Deletions

data structures, dp, greedy

PermutationForces II

brute force, combinatorics, greedy, sortings, trees, two pointers

Rising Sand

constructive algorithms, greedy, implementation

Coloring

brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math

awoo's Favorite Problem

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

Promo

greedy, sortings

Parkway Walk

greedy, implementation

Maximum Product?

brute force, combinatorics, dp, greedy, implementation, math, two pointers

Permutation Graph

binary search, constructive algorithms, data structures, divide and conquer, greedy, shortest paths

Fishingprince Plays With Array

constructive algorithms, greedy, implementation, math

NIT Destroys the Universe

greedy

NIT orz!

bitmasks, greedy

Tree Queries (Hard Version)

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

Tree Queries (Easy Version)

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

Zero Path

brute force, data structures, dp, graphs, greedy, shortest paths

Circle Game

games, greedy

Paranoid String

constructive algorithms, greedy

Creep

greedy, implementation

I Might Be Wrong

binary search, greedy, two pointers

Outermost Maximums

data structures, greedy

Decinc Dividing

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

Keshi in Search of AmShZ

graphs, greedy, shortest paths

Fake Plastic Trees

dfs and similar, dp, greedy, trees

Directional Increase

greedy

Gambling

data structures, dp, greedy, math

All Distinct

greedy, sortings

Number of Groups

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

Sum of Substrings

brute force, constructive algorithms, greedy, math, strings

Shoe Shuffling

constructive algorithms, greedy, implementation, two pointers

Beat The Odds

brute force, greedy, math

Count the Trains

binary search, data structures, greedy, sortings

Price Maximization

binary search, greedy, math, two pointers

Restoring the Duration of Tasks

data structures, greedy, implementation

Array Decrements

greedy, implementation

Print a Pedestal (Codeforces logo?)

constructive algorithms, greedy

Mystic Permutation

data structures, greedy

Lex String

brute force, greedy, implementation, sortings, two pointers

Manipulating History

constructive algorithms, greedy, strings

Patchouli's Magical Talisman

bitmasks, constructive algorithms, greedy, sortings

Become Big For Me

combinatorics, constructive algorithms, greedy, math, number theory

Sanae and Giant Robot

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