Epidemic in Monstropolis

constructive algorithms, dp, greedy, two pointers

Reberland Linguistics

dp, implementation, strings

The Monster

dp, greedy, implementation, math

Vasya And The Mushrooms

dp, implementation

Travelling Salesman and Special Numbers

brute force, combinatorics, dp

Compression

dp, implementation, math, number theory

Sum over all Substrings (Easy Version)

brute force, dp, greedy, strings

Jon Snow and his Favourite Number

brute force, dp, implementation, sortings

Connecting Universities

dfs and similar, dp, graphs, trees

Dima and Hares

dp, greedy

Recycling Bottles

dp, geometry, greedy, implementation

Hanging Hearts

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

Chloe and pleasant prizes

dfs and similar, dp, graphs, trees

Timetable

dp

The Intriguing Obsession

combinatorics, dp, math

Clique Problem

data structures, dp, greedy, implementation, sortings

Python Indentation

dp

A Twisty Movement

dp

Zero Tree

dfs and similar, dp, greedy, trees

PermuTree (easy version)

dfs and similar, dp, trees

Colored Balls

combinatorics, dp, math, sortings

Ksyusha and Chinchilla

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

Omsk Metro (simple version)

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

Vlad and Unfinished Business

dfs and similar, dp, greedy, trees

The Fair Nut and the Best Path

data structures, dp, trees

K Balanced Teams

dp, sortings, two pointers

XOR-pyramid

dp

Korney Korneevich and XOR (easy version)

bitmasks, dp, greedy

Burenka and Traditions (easy version)

dp, greedy

Journey

dp, graphs

Magic Will Save the World

binary search, bitmasks, brute force, dp

Xor-Subsequence (easy version)

bitmasks, brute force, dp, strings, trees, two pointers

Moscow Gorillas

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

Unfair Game

dp, games, greedy, math, schedules

Queries for Number of Palindromes

dp, hashing, strings

Infinite Set

bitmasks, dp, math, matrices, number theory, strings

Slime Escape

data structures, dp, greedy, two pointers

A Wide, Wide Graph

dfs and similar, dp, graphs, greedy, trees

A and B and Interesting Substrings

data structures, dp, two pointers

New Year Parties

dp, greedy

Sorting By Multiplication

dp, greedy

BA-String

brute force, dp, greedy, implementation, math

Tokitsukaze and Good 01-String (hard version)

dp, greedy, implementation

Boboniu Chats with Du

dp, greedy, sortings, two pointers

Andrey and Escape from Capygrad

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

Office Keys

binary search, brute force, dp, greedy, sortings

Array Differentiation

bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math

Bag of mice

dp, games, math, probabilities

Letter Picking

constructive algorithms, dp, games, two pointers

Zookeeper and The Infinite Zoo

bitmasks, constructive algorithms, dp, greedy, math

String Coloring (easy version)

constructive algorithms, dp, graphs, greedy, sortings

Messenger in MAC

binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings

Paint the Tree

brute force, constructive algorithms, dp, graphs, implementation, trees

Ranom Numbers

brute force, dp, greedy, math, strings

Rating System

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

Explorer Space

dp, graphs, shortest paths

Yet Another Minimization Problem

dp, greedy, math

Playoff Tournament

data structures, dfs and similar, dp, implementation, trees

Catching Cheaters

dp, strings

Two Platforms

binary search, dp, sortings, two pointers

Writing Code

dp

Easy Problem

dp

Three Blocks Palindrome (hard version)

brute force, data structures, dp, two pointers

Slime

dp, greedy, implementation

Garland

dp, greedy, sortings

Unmerge

dp

Book

binary search, brute force, data structures, dp, graphs, implementation, sortings

Extreme Subtraction

constructive algorithms, dp, greedy

Count The Blocks

combinatorics, dp, math

Make The Fence Great Again

dp

Maximum Distributed Tree

dfs and similar, dp, greedy, implementation, math, number theory, sortings, trees

Maximum White Subtree

dfs and similar, dp, graphs, trees

Kefa and Dishes

bitmasks, dp

Armchairs

dp, flows, graph matchings, greedy

Cleaning the Phone

binary search, dp, sortings, two pointers

Chef Monocarp

dp, flows, graph matchings, greedy, math, sortings

Colored Rectangles

dp, greedy, sortings

The Sports Festival

dp, greedy

Carousel

constructive algorithms, dp, graphs, greedy, math

Distance in Tree

dfs and similar, dp, trees

Fix the String

*special problem, bitmasks, dp, greedy

Magic Tricks

*special problem, dp, graphs

Game on Tree (Medium)

dfs and similar, dp, games, trees

Фото на память - 2 (round version)

dp, greedy

Phone Number

dp

Word Cut

dp

Plus and xor

dp, greedy, math

Buses

binary search, data structures, dp

Substring and Subsequence

dp

Clear Symmetry

constructive algorithms, dp, math

Animals

dp, greedy

MADMAX

dfs and similar, dp, games, graphs

Portal

brute force, data structures, dp, greedy, implementation

Cow Program

dfs and similar, dp, graphs

Riverside Curio

data structures, dp, greedy

Playing Piano

constructive algorithms, dp

XOR Equation

dp, math

Robbers' watch

brute force, combinatorics, dp, math

Mahmoud and a Message

brute force, dp, greedy, strings

Efim and Strange Grade

dp, implementation, math