Code obfuscation

greedy, implementation, strings

Two strings

binary search, hashing, strings, two pointers

Ability To Convert

constructive algorithms, dp, greedy, math, strings

Felicity is Coming!

data structures, hashing, sortings, strings

PolandBall and Game

binary search, data structures, games, greedy, sortings, strings

Dasha and cyclic table

bitmasks, brute force, fft, strings, trees

Vladik and chat

brute force, constructive algorithms, dp, implementation, strings

Santa Claus and Keyboard Check

implementation, strings

Comments

dfs and similar, expression parsing, implementation, strings

Mammoth's Genome Decoding

implementation, strings

Decoding

implementation, strings

Hongcow Learns the Cyclic Shift

implementation, strings

Hongcow Masters the Cyclic Shift

strings, two pointers

Ostap and Grasshopper

implementation, strings

Anton and Danik

implementation, strings

Night at the Museum

implementation, strings

Interview with Oleg

implementation, strings

Games on a CD

data structures, hashing, string suffix structures, strings

Bill Total Value

expression parsing, implementation, strings

Hidden Word

brute force, constructive algorithms, implementation, strings

Dense Subsequence

data structures, greedy, strings

Text Document Analysis

expression parsing, implementation, strings

Generating Sets

binary search, data structures, dfs and similar, greedy, strings, trees

Verse Pattern

implementation, strings

Passwords

implementation, math, sortings, strings

Memory and Trident

implementation, strings

String Set Queries

brute force, data structures, hashing, interactive, string suffix structures, strings

Letters Cyclic Shift

constructive algorithms, greedy, implementation, strings

Hard problem

dp, strings

They Are Everywhere

binary search, strings, two pointers

Cool Slogans

string suffix structures, strings

Barnicle

brute force, implementation, math, strings

Legen...

data structures, dp, matrices, strings

Exponential notation

implementation, strings

s-palindrome

implementation, strings

Alyona and Strings

dp, strings

Vanya and Label

bitmasks, combinatorics, implementation, strings

Vasya and String

binary search, dp, strings, two pointers

Different is Good

constructive algorithms, implementation, strings

Restore a Number

brute force, constructive algorithms, strings

Correct Bracket Sequence Editor

data structures, dsu, strings

Codeword

combinatorics, strings

Reberland Linguistics

dp, implementation, strings

Beautiful Subarrays

data structures, divide and conquer, strings, trees

Simple Strings

dp, greedy, strings

Paper task

data structures, string suffix structures, strings

Bear and Compressing

brute force, dfs and similar, dp, strings

Intellectual Inquiry

dp, greedy, strings

Hostname Aliases

*special problem, binary search, data structures, implementation, sortings, strings

Making Genome in Berland

*special problem, dfs and similar, strings

Spy Syndrome 2

data structures, dp, hashing, implementation, sortings, string suffix structures, strings

The Smallest String Concatenation

sortings, strings

Messenger

data structures, hashing, implementation, string suffix structures, strings

Famil Door and Brackets

dp, strings

Bear and String Distance

greedy, strings

War of the Corporations

constructive algorithms, greedy, strings

Xors on Segments

data structures, strings, trees

Expensive Strings

data structures, sortings, string suffix structures, strings

Comparing Two Long Integers

implementation, strings

Running Track

dp, greedy, strings, trees

Puzzle Lover

dp, hashing, strings

The Text Splitting

brute force, implementation, strings

New Year and Ancient Prophecy

dp, hashing, strings

Alphabet Permutations

data structures, strings

Hamming Distance Sum

combinatorics, strings

Marbles

hashing, strings

Acyclic Organic Compounds

data structures, dfs and similar, dsu, hashing, strings, trees

Make Palindrome

constructive algorithms, greedy, strings

Extract Numbers

implementation, strings

Queries on a String

implementation, strings

Wilbur and Strings

dfs and similar, dp, graphs, strings

Cutting the Line

string suffix structures, strings

Rebranding

implementation, strings

Birthday

graph matchings, strings

Duff is Mad

data structures, strings

Digits of Number Pi

dp, implementation, strings

Marina and Vasya

constructive algorithms, greedy, strings

Kefa and Watch

data structures, hashing, strings

Matching Names

dfs and similar, strings, trees

Equivalent Strings

divide and conquer, hashing, sortings, strings

A Simple Task

data structures, sortings, strings

Ann and Half-Palindrome

data structures, dp, graphs, string suffix structures, strings, trees

Ohana Cleans Up

brute force, greedy, strings

Kyoya and Photobooks

brute force, math, strings

Vanya and Brackets

brute force, dp, expression parsing, greedy, implementation, strings

ZgukistringZ

brute force, constructive algorithms, implementation, strings

Two Substrings

brute force, dp, greedy, implementation, strings

Face Detection

implementation, strings

Mike and Fax

brute force, implementation, strings

Mike and Friends

data structures, string suffix structures, strings, trees

Set of Strings

implementation, strings

Tavas and Malekas

greedy, hashing, string suffix structures, strings

Encoding

hashing, string suffix structures, strings

Correcting Mistakes

constructive algorithms, dp, greedy, hashing, strings, two pointers

Work Group

dfs and similar, dp, graphs, strings, trees

Om Nom and Necklace

hashing, string suffix structures, strings

Pasha and String

constructive algorithms, greedy, math, strings

Vitaliy and Pie

greedy, hashing, strings

And Yet Another Bracket Sequence

data structures, greedy, hashing, string suffix structures, strings

DNA Alignment

math, strings