Two Seals

brute force, implementation

Flag of Berland

brute force, implementation

Text Volume

implementation

Star sky

dp, implementation

The Festive Evening

data structures, implementation

The Useless Toy

implementation

Red-Black Cobweb

data structures, divide and conquer, implementation, trees

Strange Radiation

binary search, implementation, math

Petya and Exam

implementation, strings

Keyboard Layouts

implementation, strings

Unimodal Array

implementation

Perpetual Motion Machine

constructive algorithms, dp, graphs, implementation, math, trees

Bamboo Partition

brute force, data structures, implementation, math, number theory, sortings, two pointers

Cards Sorting

data structures, implementation, sortings

Black Square

implementation

Restaurant Tables

implementation

High Load

constructive algorithms, greedy, implementation, trees

Suitable Replacement

binary search, greedy, implementation

Multi-judge Solving

greedy, implementation

Five-In-a-Row

brute force, implementation

Binary Protocol

implementation

Hacker, pack your bags!

binary search, greedy, implementation, sortings

Crossword solving

brute force, implementation, strings

I'm bored with life

implementation, math, number theory

Okabe and Future Gadget Laboratory

implementation

Mister B and Book Reading

implementation

Mister B and PR Shifts

data structures, implementation, math

Multicolored Cars

data structures, implementation

Sofa Thief

brute force, implementation

Permutation Game

implementation

Diplomas and Certificates

implementation, math

Makes And The Product

combinatorics, implementation, math, sortings

Treasure Hunt

implementation, math, number theory

Karen and Coffee

binary search, data structures, implementation

Karen and Morning

brute force, implementation

Karen and Neighborhood

binary search, constructive algorithms, implementation

Karen and Game

brute force, greedy, implementation

An abandoned sentiment from past

constructive algorithms, greedy, implementation, sortings

The Contest

implementation

Sagheer and Kindergarten

dfs and similar, graphs, implementation, trees

Sagheer and Crossroads

implementation

Vladik and Memorable Trip

dp, implementation

Vladik and Complicated Book

implementation, sortings

Vladik and Courtesy

brute force, implementation

Straight <<A>>

implementation, math

Do you want a date?

implementation, math, sortings

Array Division

binary search, data structures, implementation

Average Sleep Time

data structures, implementation, math

Lucky Year

implementation

T-Shirt Hunt

brute force, implementation

Is it rated?

implementation, sortings

Minimum number of steps

combinatorics, greedy, implementation, math

Fake News (easy)

implementation, strings

Fountains

binary search, data structures, implementation

T-shirt buying

data structures, implementation

Carrot Cakes

brute force, implementation

Odd sum

dp, greedy, implementation

k-Factorization

implementation, math, number theory

Find The Bone

implementation

Buying A House

brute force, implementation

Bank Robbery

brute force, implementation

Mice problem

geometry, implementation, math, sortings

Igor and his way to work

dfs and similar, graphs, implementation, shortest paths

Oleg and shares

implementation, math

Counting-out Rhyme

implementation

New Bus Route

implementation, sortings

Bear and Big Brother

implementation

Masha and geometric depression

brute force, implementation, math

Anastasia and pebbles

implementation, math

Not Afraid

greedy, implementation, math

Anton and Polyhedrons

implementation, strings

Crunching Numbers Just for You

*special problem, implementation

Twisted Circuit

*special problem, brute force, implementation

Touchy-Feely Palindromes

*special problem, implementation

INTERCALC

*special problem, implementation

Intranet of Buses

binary search, geometry, implementation, two pointers

Innokenty and a Football League

2-sat, graphs, greedy, implementation, shortest paths, strings

Andryusha and Socks

implementation

Bitwise Formula

bitmasks, brute force, dfs and similar, expression parsing, implementation

Cloud of Hashtags

binary search, greedy, implementation, strings

Alyona and Spreadsheet

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

Shell Game

constructive algorithms, implementation, math

Sherlock's bet to Moriarty

constructive algorithms, data structures, divide and conquer, geometry, graphs, implementation, trees

Molly's Chemicals

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

A Serial Killer

brute force, implementation, strings

Stepan and Vowels

*special problem, implementation, strings

Lie or Truth

*special problem, constructive algorithms, implementation, sortings

Maximum Number

*special problem, constructive algorithms, greedy, implementation

Draw Brackets!

*special problem, implementation

Online Courses In BSU

*special problem, dfs and similar, graphs, implementation

Maximize Sum of Digits

*special problem, implementation, math

New Password

*special problem, implementation

Year of University Entrance

*special problem, implementation, sortings

Jon Snow and his Favourite Number

brute force, dp, implementation, sortings

Snacktower

data structures, implementation

Tree Folding

dfs and similar, dp, greedy, implementation, trees

Code obfuscation

greedy, implementation, strings

Neverending competitions

implementation, math

Timofey and cubes

constructive algorithms, implementation

Taymyr is calling you

brute force, implementation, math