Remove Two Letters

data structures, greedy, hashing, strings

A-B Palindrome

constructive algorithms, implementation, strings

Common Prefixes

constructive algorithms, greedy, strings

Removal of Unattractive Pairs

constructive algorithms, greedy, math, strings

Make Them Equal

brute force, greedy, math, strings

Prinzessin der Verurteilung

brute force, constructive algorithms, strings

2-Letter Strings

data structures, math, strings

Dominated Subarray

greedy, implementation, sortings, strings, two pointers

Grandma Capa Knits a Scarf

brute force, data structures, greedy, strings, two pointers

Email from Polycarp

implementation, strings

Minimizing the String

greedy, strings

Game with Reversing

games, greedy, math, strings

Kuroni and Simple Strings

constructive algorithms, greedy, strings, two pointers

Good String

implementation, strings

War of the Corporations

constructive algorithms, greedy, strings

Ohana Cleans Up

brute force, greedy, strings

Bear and Strings

brute force, greedy, implementation, math, strings

Letters Cyclic Shift

constructive algorithms, greedy, implementation, strings

Single Wildcard Pattern Matching

brute force, implementation, strings

Vasya And Password

greedy, implementation, strings

Rebranding

implementation, strings

A Tide of Riverscape

constructive algorithms, strings

Verse Pattern

implementation, strings

Phone Numbers

implementation, strings

Center Alignment

implementation, strings

Train and Peter

strings

Help Kingdom of Far Far Away 2

implementation, strings

Pattern

implementation, strings

Login Verification

*special problem, strings

Anton and currency you all know

greedy, math, strings

Prefix Flip (Easy Version)

constructive algorithms, data structures, strings

Get an Even String

dp, greedy, strings

Equalize

dp, greedy, strings

Make a Power of Two

greedy, math, strings

Canine poetry

dp, greedy, strings

WOW Factor

dp, strings

Reverse String

brute force, dp, hashing, implementation, strings

Tear It Apart

brute force, implementation, math, strings

From S To T

implementation, strings

Many Equal Substrings

implementation, strings

Letters Shop

binary search, implementation, strings

Plus from Picture

dfs and similar, implementation, strings

Bit Flipping

bitmasks, constructive algorithms, greedy, strings

Queries on a String

implementation, strings

Substring Removal

combinatorics, math, strings

Oh Those Palindromes

constructive algorithms, strings

Substring Game in the Lesson

games, greedy, strings

Simple Strings

dp, greedy, strings

Homecoming

binary search, dp, greedy, strings

String Transformation

greedy, strings

Mike and strings

brute force, dp, strings

Strings of Power

implementation, strings, two pointers

The Text Splitting

brute force, implementation, strings

Petya and Java

implementation, strings

Bear and String Distance

greedy, strings

Bear and Compressing

brute force, dfs and similar, dp, strings

Page Numbers

expression parsing, implementation, sortings, strings

Hard Work

strings

Punctuation

implementation, strings

Prime Permutation

implementation, number theory, strings

Command Line Arguments

*special problem, implementation, strings

Subsequence Hate

implementation, strings

Dominant Character

brute force, greedy, implementation, strings

Palindromes Coloring

binary search, greedy, sortings, strings

Unstable String

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

Suffix Structures

implementation, strings

String Equality

dp, greedy, hashing, implementation, strings

Sum of Substrings

brute force, constructive algorithms, greedy, math, strings

Diverse Substrings

brute force, implementation, strings

awoo's Favorite Problem

binary search, constructive algorithms, data structures, greedy, implementation, strings, two pointers

Strong Password

binary search, dp, greedy, strings

Palindromifier

constructive algorithms, strings

Unforgivable Curse (easy version)

brute force, constructive algorithms, dsu, graphs, greedy, strings

Row Major

constructive algorithms, greedy, math, number theory, strings

Largest Subsequence

greedy, strings

String Modification

brute force, constructive algorithms, implementation, sortings, strings

Binary Palindromes

greedy, strings

Phase Shift

dfs and similar, dsu, graphs, greedy, implementation, strings

Pasha and String

constructive algorithms, greedy, math, strings

Common Divisors

brute force, hashing, implementation, math, strings

Tanya and Postcard

greedy, implementation, strings

String Typing

implementation, strings

Barnicle

brute force, implementation, math, strings

Phone Numbers

implementation, strings

String Manipulation 1.0

*special problem, binary search, brute force, data structures, strings

Gnikool Ssalg

*special problem, implementation, strings

Two Substrings

brute force, dp, greedy, implementation, strings

Codeforces Subsequences

brute force, constructive algorithms, greedy, math, strings

Vasya and String

binary search, dp, strings, two pointers

K-Complete Word

dfs and similar, dsu, greedy, implementation, strings

Balanced Bitstring

implementation, strings

They Are Everywhere

binary search, strings, two pointers

Backspace

dp, greedy, strings, two pointers

Interesting Story

greedy, sortings, strings

Did We Get Everything Covered?

constructive algorithms, dp, greedy, shortest paths, strings

Unforgivable Curse (hard version)

brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings

Acacius and String

brute force, implementation, strings

Prefix-Suffix Palindrome (Easy version)

hashing, string suffix structures, strings

Nearly Shortest Repeating Substring

brute force, implementation, number theory, strings

Cow and Message

brute force, dp, math, strings