Are You a Procrastinator?

implementation

Kilani and the Game

dfs and similar, graphs, implementation, shortest paths

Physical Education Lessons

data structures, implementation, sortings

Batch Sort

brute force, greedy, implementation, math

Kolya and Tandem Repeat

brute force, implementation, strings

Masha-forgetful

brute force, constructive algorithms, dp, hashing, implementation, strings

Two Seals

brute force, implementation

Dima and Sequence

implementation, math

Kate and imperfection

greedy, implementation, math, number theory, sortings, two pointers

Yet Another Ball Problem

constructive algorithms, implementation

Median Smoothing

implementation

Painting the Array II

constructive algorithms, data structures, dp, greedy, implementation

Anagram Search

implementation, strings

Flag of Berland

brute force, implementation

White Lines

brute force, data structures, dp, implementation, two pointers

Two Squares

geometry, implementation

Moving Points

data structures, divide and conquer, implementation, sortings

Potions Homework

implementation, sortings

Fun with Integers

dfs and similar, graphs, implementation, math

Reverse Sort Sum

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

Pattern

implementation, strings

What is for dinner?

greedy, implementation

Find Color

constructive algorithms, geometry, implementation, math

Almost Sorted

binary search, combinatorics, constructive algorithms, implementation

Guess The Maximums

binary search, implementation, interactive, math

Unfair Poll

binary search, constructive algorithms, implementation, math

Subsequence Counting

bitmasks, constructive algorithms, greedy, implementation

Devu and Partitioning of the Array

brute force, constructive algorithms, implementation, number theory

Birthday Gift

bitmasks, brute force, constructive algorithms, greedy, implementation

Average Numbers

brute force, implementation

Balanced Playlist

binary search, data structures, implementation

Jon Snow and his Favourite Number

brute force, dp, implementation, sortings

Rarity and New Dress

dfs and similar, dp, implementation, shortest paths

Sereja and Mirroring

implementation

ZgukistringZ

brute force, constructive algorithms, implementation, strings

Graph And Its Complement

constructive algorithms, graphs, implementation

Time to Run

constructive algorithms, graphs, implementation

Beingawesomeism

implementation, math

Ancient Prophesy

brute force, implementation, strings

Permutations

brute force, combinatorics, implementation

Chord

brute force, implementation

Little Artem and Matrix

implementation

Set To Max (Hard Version)

constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings

Easy Scheduling

implementation, math

Playlist

data structures, dsu, implementation, shortest paths

Repetitions Decoding

constructive algorithms, implementation, sortings

Polycarp's phone book

data structures, implementation, sortings

Hongcow Solves A Puzzle

implementation

Concatenated Multiples

implementation, math

Matrix Walk

implementation

Trees in a Row

brute force, implementation

Which floor?

brute force, implementation

Anton and Chess

implementation

Tram

constructive algorithms, implementation, math

Li Hua and Tree

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

Compression

dp, implementation, math, number theory

2-3-numbers

implementation, math

Microcycle

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

Fight the Monster

binary search, brute force, implementation

Koxia and Game

constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation

Vasya And The Mushrooms

dp, implementation

Race Against Time

implementation

Challenges in school №41

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

Email address

expression parsing, implementation

Jeopardy of Dropped Balls

binary search, brute force, dsu, implementation

Even Path

data structures, implementation

Spoilt Permutation

implementation

BerOS File Suggestion

brute force, implementation

Robot Queries

binary search, data structures, dp, implementation

Winnie-the-Pooh and honey

implementation, math

Professor Higashikata

data structures, dsu, greedy, implementation, strings

Fountains

binary search, data structures, implementation

Alena And The Heater

binary search, implementation

Unlucky Numbers

brute force, dp, greedy, implementation

Cottage Village

implementation, sortings

Ciel and Robot

binary search, implementation, math

Punctuation

implementation, strings

Maximum Diameter Graph

constructive algorithms, graphs, implementation

Portal

brute force, data structures, dp, greedy, implementation

T-Shirt Hunt

brute force, implementation

T-shirts from Sponsor

implementation

Down the Hatch!

implementation

Weight the Tree

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

Where Are My Flakes?

implementation, two pointers

Prime Permutation

implementation, number theory, strings

Problems for Round

greedy, implementation

Connected Component on a Chessboard

constructive algorithms, implementation

Multitasking

greedy, implementation, sortings, two pointers

To Go Or Not To Go?

brute force, dfs and similar, graphs, greedy, implementation, shortest paths

Game on Tree

implementation, math, probabilities, trees

Inna and Alarm Clock

implementation

Cracking the Code

implementation, math

High Load

constructive algorithms, greedy, implementation, trees

Cyclic MEX

data structures, implementation, math, two pointers

Two Tables

brute force, implementation

Power Transmission (Hard Edition)

data structures, geometry, implementation, math

The Monster

dp, greedy, implementation, math

Reberland Linguistics

dp, implementation, strings

Three Logos

bitmasks, brute force, constructive algorithms, geometry, implementation, math

Decreasing Debts

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