Kefa and Company

binary search, sortings, two pointers

Polycarp and the Language of Gods

*special problem, implementation, two pointers

Balls Game

brute force, two pointers

USB vs. PS/2

greedy, implementation, sortings, two pointers

K-Dominant Character

binary search, implementation, two pointers

Guess a number!

greedy, implementation, two pointers

Swap Adjacent Elements

dfs and similar, greedy, math, sortings, two pointers

Tokitsukaze and Discard Items

implementation, two pointers

Dances (Easy version)

binary search, greedy, two pointers

Complex Market Analysis

binary search, dp, implementation, number theory, schedules, two pointers

Physics Practical

binary search, dp, sortings, two pointers

Approximating a Constant Range

dp, implementation, two pointers

Array Game

binary search, brute force, data structures, sortings, two pointers

Klever Permutation

constructive algorithms, math, two pointers

Fighting Tournament

binary search, data structures, implementation, two pointers

Hossam and Friends

binary search, constructive algorithms, dp, two pointers

Min-Max Array Transformation

binary search, greedy, two pointers

Inaccurate Subsequence Search

data structures, two pointers

LR-remainders

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

awoo's Favorite Problem

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

Meximum Array

binary search, constructive algorithms, greedy, implementation, math, two pointers

Schedule Management

binary search, greedy, implementation, two pointers

2^Sort

data structures, dp, sortings, two pointers

Unstable String

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

RationalLee

greedy, math, sortings, two pointers

Zero Remainder Array

math, sortings, two pointers

Pair of Topics

binary search, data structures, sortings, two pointers

Books

binary search, brute force, implementation, two pointers

Where Are My Flakes?

implementation, two pointers

Dress'em in Vests!

binary search, brute force, greedy, two pointers

Beppa and SwerChat

two pointers

Strings of Power

implementation, strings, two pointers

Brutality

greedy, sortings, two pointers

TV Subscriptions (Hard Version)

implementation, two pointers

Colorful Table

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

Complete the Word

greedy, two pointers

Reorder the Array

combinatorics, data structures, math, sortings, two pointers

Beautiful Numbers

data structures, implementation, math, two pointers

Scoring Subsequences

binary search, greedy, math, two pointers

Money Trees

binary search, greedy, math, two pointers

Good Subarrays (Easy Version)

binary search, data structures, schedules, two pointers

Balanced Tunnel

data structures, sortings, two pointers

Longest Strike

data structures, greedy, implementation, sortings, two pointers

Points on Line

binary search, combinatorics, two pointers

Find the Different Ones!

binary search, brute force, data structures, dp, dsu, greedy, two pointers

Most socially-distanced subsequence

greedy, two pointers

Shuffle

math, two pointers

Strange Birthday Party

binary search, dp, greedy, sortings, two pointers

Number of Pairs

binary search, data structures, math, two pointers

Queries about less or equal elements

binary search, data structures, sortings, two pointers

News About Credit

*special problem, greedy, two pointers

Eugeny and Play List

binary search, implementation, two pointers

Wrath

greedy, implementation, two pointers

Kirill And The Game

brute force, two pointers

Escape from Stones

constructive algorithms, data structures, implementation, two pointers

Kuroni and Simple Strings

constructive algorithms, greedy, strings, two pointers

George and Round

brute force, greedy, two pointers

Alice, Bob and Chocolate

greedy, two pointers

Grandma Capa Knits a Scarf

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

Equalize

binary search, greedy, sortings, two pointers

Dominated Subarray

greedy, implementation, sortings, strings, two pointers

Dora and Search

constructive algorithms, data structures, two pointers

Friends and the Restaurant

greedy, sortings, two pointers

Lecture Sleep

data structures, dp, implementation, two pointers

Binary Deque

binary search, implementation, two pointers

Delete Two Elements

data structures, dp, implementation, math, two pointers

Three Parts of the Array

binary search, data structures, two pointers

Balanced Team

sortings, two pointers

XXXXX

brute force, data structures, number theory, two pointers

Boats Competition

brute force, greedy, two pointers

Ternary String

binary search, dp, implementation, two pointers

Alternating Subsequence

dp, greedy, two pointers

BerSU Ball

dfs and similar, dp, graph matchings, greedy, sortings, two pointers

Haunted House

binary search, greedy, math, two pointers

Collecting Game

binary search, dp, greedy, sortings, two pointers

JoJo's Incredible Adventures

math, strings, two pointers

Kalindrome Array

greedy, two pointers

Minimize the Thickness

brute force, greedy, math, two pointers

Counting Orders

combinatorics, math, sortings, two pointers

Subtract Operation

data structures, greedy, math, two pointers

Yarik and Array

dp, greedy, two pointers

Maximum Sum

brute force, sortings, two pointers

Very Different Array

data structures, greedy, sortings, two pointers

Pair Programming

greedy, two pointers

Eating Candies

binary search, data structures, greedy, two pointers

Broken Keyboard

brute force, strings, two pointers

Hamon Odyssey

bitmasks, greedy, two pointers

Shoe Shuffling

constructive algorithms, greedy, implementation, two pointers

Challenging Valleys

implementation, two pointers

Traffic Light

binary search, implementation, two pointers

Letters

binary search, implementation, two pointers

Ski Resort

combinatorics, math, two pointers

Black and White Stripe

implementation, two pointers

New Theatre Square

brute force, dp, greedy, implementation, two pointers

AB Flipping

greedy, strings, two pointers

Serval and Inversion Magic

brute force, implementation, strings, two pointers

Lex String

brute force, greedy, implementation, sortings, two pointers

Rebellion

constructive algorithms, greedy, two pointers

Contest Proposal

brute force, greedy, two pointers

Quality vs Quantity

brute force, constructive algorithms, greedy, sortings, two pointers