Travel Cards

greedy, implementation, sortings

Load Testing

greedy

Packmen

binary search, dp

Sum of Nestings

constructive algorithms

Preparing for Merge Sort

binary search, data structures

Union of Doubly Linked Lists

implementation

Random Query

data structures, math, probabilities, two pointers

Four Segments

brute force, data structures, dp

Math Show

brute force, greedy

Curriculum Vitae

brute force, implementation

Driving Test

data structures, dp, greedy

Two TVs

data structures, greedy, sortings

Luba And The Ticket

brute force, greedy, implementation

Sorting by Subsequences

dfs and similar, dsu, implementation, math, sortings

Journey

dfs and similar, dp, graphs, probabilities, trees

Binary Blocks

brute force

Two Seals

brute force, implementation

Flag of Berland

brute force, implementation

Star sky

dp, implementation

The Meaningless Game

math, number theory

Petya and Exam

implementation, strings

Jury Marks

brute force, constructive algorithms

Cards Sorting

data structures, implementation, sortings

Office Keys

binary search, brute force, dp, greedy, sortings

High Load

constructive algorithms, greedy, implementation, trees

String Reconstruction

data structures, greedy, sortings, strings

Suitable Replacement

binary search, greedy, implementation

Multi-judge Solving

greedy, implementation

Five-In-a-Row

brute force, implementation

My pretty girl Noora

brute force, dp, greedy, math, number theory

Hacker, pack your bags!

binary search, greedy, implementation, sortings

Okabe and Boxes

data structures, greedy, trees

Multicolored Cars

data structures, implementation

Permutation Game

implementation

Really Big Numbers

binary search, brute force, dp, math

Makes And The Product

combinatorics, implementation, math, sortings

Karen and Coffee

binary search, data structures, implementation

Karen and Game

brute force, greedy, implementation

An impassioned circulation of affection

brute force, dp, strings, two pointers

The Tag Game

dfs and similar, graphs

The Golden Age

brute force, math

Sagheer and Nubian Market

binary search, sortings

Sagheer, the Hausmeister

bitmasks, brute force, dp

Do you want a date?

implementation, math, sortings

Tea Party

constructive algorithms, greedy, sortings

Minimum number of steps

combinatorics, greedy, implementation, math

Maximal Binary Matrix

constructive algorithms

Send the Fool Further! (easy)

dfs and similar, graphs, trees

Heidi and Library (medium)

data structures, greedy

Heidi and Library (easy)

greedy

Fountains

binary search, data structures, implementation

T-shirt buying

data structures, implementation

Mike and gcd problem

dp, greedy, number theory

Minimal string

data structures, greedy, strings

Odd sum

dp, greedy, implementation

Naming Company

games, greedy, sortings

Igor and his way to work

dfs and similar, graphs, implementation, shortest paths

Masha and geometric depression

brute force, implementation, math

Functions again

dp, two pointers

Anton and Fairy Tale

binary search, math

INTERCALC

*special problem, implementation

Numbers Joke

*special problem

Andryusha and Colored Balloons

dfs and similar, graphs, greedy, trees

The Meeting Place Cannot Be Changed

binary search

Bitwise Formula

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

String Game

binary search, greedy, strings

Cloud of Hashtags

binary search, greedy, implementation, strings

Alyona and Spreadsheet

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

Molly's Chemicals

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

Stepan and Vowels

*special problem, implementation, strings

Lie or Truth

*special problem, constructive algorithms, implementation, sortings

Success Rate

binary search, math

Volatile Kite

geometry

Voltage Keepsake

binary search, math

Bear and Different Names

constructive algorithms, greedy

Bear and Friendship Condition

dfs and similar, dsu, graphs

Draw Brackets!

*special problem, implementation

Online Courses In BSU

*special problem, dfs and similar, graphs, implementation

k-Interesting Pairs Of Integers

*special problem, bitmasks, brute force, meet-in-the-middle

Cycle In Maze

*special problem, dfs and similar, graphs, greedy, shortest paths

Jon Snow and his Favourite Number

brute force, dp, implementation, sortings

Code For 1

constructive algorithms, dfs and similar, divide and conquer

Mahmoud and a Message

brute force, dp, greedy, strings

Artsem and Saunders

constructive algorithms, dsu, math

Timofey and a tree

dfs and similar, dp, dsu, graphs, implementation, trees

USB vs. PS/2

greedy, implementation, sortings, two pointers

k-th divisor

math, number theory

Dasha and Very Difficult Problem

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

Dasha and Password

brute force, dp, implementation

Frodo and pillows

binary search, greedy

Unfair Poll

binary search, constructive algorithms, implementation, math

Bash's Big Day

greedy, math, number theory

Travel Card

binary search, dp

Pavel and barbecue

constructive algorithms, dfs and similar

Interactive Bulls and Cows (Easy)

brute force, constructive algorithms, implementation

New Year and Rating

binary search, greedy, math

Voting

greedy, implementation, two pointers

Santa Claus and Robot

constructive algorithms, math

Santa Claus and Keyboard Check

implementation, strings

Comments

dfs and similar, expression parsing, implementation, strings