Tree Shuffling

dfs and similar, dp, greedy, trees

Bitwise Operation Wizard

bitmasks, constructive algorithms, greedy, interactive, math

Different Rules

constructive algorithms, greedy, implementation, math

Boboniu Chats with Du

dp, greedy, sortings, two pointers

Valuable Resources

brute force, greedy

Anna, Svyatoslav and Maps

dp, graphs, greedy, shortest paths

Bombs

greedy, implementation, sortings

Game Master

data structures, dfs and similar, dp, graphs, greedy, two pointers

Candy Party (Easy Version)

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

Prefix Purchase

greedy, implementation, sortings

Tokitsukaze and Good 01-String (hard version)

dp, greedy, implementation

Sockets

greedy, implementation, sortings

Pearls in a Row

greedy

Arena of Greed

games, greedy

BA-String

brute force, dp, greedy, implementation, math

Reachability from the Capital

dfs and similar, graphs, greedy

Median

greedy, math, sortings

Array Optimization by Deque

data structures, greedy

Shurikens

data structures, greedy, implementation

Lexicographically Largest

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

Design Tutorial: Make It Nondeterministic

greedy

Matrix Cascade

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

Berland Fair

binary search, brute force, data structures, greedy

Increasing by Modulo

binary search, greedy

Maximum AND

bitmasks, dfs and similar, divide and conquer, greedy, sortings

Alyona and Spreadsheet

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

Polo the Penguin and Strings

greedy

Nested Segments

greedy, implementation, sortings

New Year Parties

dp, greedy

Another Array Problem

brute force, constructive algorithms, greedy

Minimal string

data structures, greedy, strings

Eternal Victory

dfs and similar, graphs, greedy, shortest paths, trees

Sorting By Multiplication

dp, greedy

Three Bags

constructive algorithms, greedy

Split a Number

greedy, implementation, strings

String Reversal

data structures, greedy, strings

Breaking the Wall

binary search, brute force, constructive algorithms, greedy, math

Skyscrapers (hard version)

data structures, dp, greedy

Relatively Prime Graph

brute force, constructive algorithms, graphs, greedy, math

Ugly Pairs

dfs and similar, greedy, implementation, sortings, strings

Optimal Subsequences (Easy Version)

data structures, greedy

Captain Flint and Treasure

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

Mashmokh and Tokens

binary search, greedy, implementation, math

Treasure

greedy

Yet Another Monster Fight

binary search, dp, greedy, implementation, math

Mark and Lightbulbs

combinatorics, constructive algorithms, greedy, math, sortings

Shortest and Longest LIS

constructive algorithms, graphs, greedy, two pointers

Vasya And Array

constructive algorithms, greedy, implementation

Marina and Vasya

constructive algorithms, greedy, strings

Frodo and pillows

binary search, greedy

Present

binary search, data structures, greedy

Aroma's Search

brute force, constructive algorithms, geometry, greedy, implementation

A Wide, Wide Graph

dfs and similar, dp, graphs, greedy, trees

Cow and Fields

binary search, data structures, dfs and similar, graphs, greedy, shortest paths, sortings

Slime Escape

data structures, dp, greedy, two pointers

Binary Literature

constructive algorithms, greedy, implementation, strings, two pointers

Triangles

greedy, implementation

Cyclic Rotation

constructive algorithms, greedy, implementation, two pointers

Ticket Game

games, greedy, math

Find a Mine

binary search, constructive algorithms, geometry, greedy, interactive, math

Make a Permutation!

greedy, implementation, math

Tea Party

constructive algorithms, greedy, sortings

K-Periodic Array

greedy, implementation, math

Little Elephant and Sorting

brute force, greedy

Coffee and Coursework (Hard Version)

binary search, greedy

Genius's Gambit

bitmasks, constructive algorithms, greedy, math

Education

brute force, dp, greedy, implementation

Voting

greedy, implementation, two pointers

Nearest Beautiful Number (easy version)

binary search, bitmasks, brute force, constructive algorithms, dfs and similar, greedy

Make Them Equal

constructive algorithms, greedy, math

The Phone Number

constructive algorithms, greedy

Match Points

binary search, greedy, sortings, ternary search, two pointers

Binary String Sorting

constructive algorithms, greedy

Balanced Removals (Easier)

constructive algorithms, geometry, greedy

Testing Pants for Sadness

greedy, implementation, math

Let's Go Hiking

games, greedy

Bandit in a City

binary search, dfs and similar, graphs, greedy, trees

Multiple Testcases

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

Make It Connected

dsu, graphs, greedy

Bus

greedy, implementation, math

River Locks

binary search, dp, greedy, math

Camp Schedule

greedy, hashing, strings

No to Palindromes!

greedy, strings

Slimes

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

Buying gifts

data structures, greedy, sortings

Maximize the Intersections

combinatorics, constructive algorithms, geometry, greedy, sortings

Planning

greedy

Double Matrix

brute force, greedy

Tourist's Notes

binary search, brute force, greedy, implementation, math

New Year Book Reading

constructive algorithms, greedy, implementation, math

Moscow Gorillas

binary search, dp, greedy, implementation, math, two pointers

Fruits

greedy, implementation, sortings

Vasya and the Bus

greedy, math

Ilya and Sticks

greedy, math, sortings

Weights Division (easy version)

data structures, dfs and similar, greedy, trees

Marcin and Training Camp

brute force, greedy

Bear and String Distance

greedy, strings

Array Splitting

greedy, sortings

Make Palindrome

constructive algorithms, greedy, strings

Decorate Apple Tree

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