Guard Duty (easy)

brute force, geometry, greedy, math

Encryption (easy)

brute force

Scissors

brute force, strings

A Map of the Cat

brute force, interactive

Binary Cards

brute force

Curfew

binary search, brute force, greedy, sortings

Protect Sheep

brute force, dfs and similar, graphs, implementation

Machine Learning

brute force, data structures

Points on the line

brute force, greedy, sortings

Constructing Tests

binary search, brute force, constructive algorithms

Run For Your Prize

brute force, greedy

Vile Grasshoppers

brute force, math, number theory

Fafa and his Company

brute force, implementation

A Compatible Pair

brute force, games

A Creative Cutout

brute force, combinatorics, math

Permutation Cycle

brute force, constructive algorithms

Friends Meeting

brute force, greedy, implementation, math

Cave Painting

brute force, number theory

Magic Forest

brute force

List Of Integers

binary search, bitmasks, brute force, combinatorics, math, number theory

SUM and REPLACE

brute force, data structures, dsu, number theory

Seat Arrangements

brute force, implementation

Perfect Number

binary search, brute force, dp, implementation, number theory

Supermarket

brute force, greedy, implementation

Eleven

brute force, implementation

Jamie and Alarm Snooze

brute force, implementation, math

Substrings in a String

bitmasks, brute force, data structures, string suffix structures, strings

Travelling Salesman and Special Numbers

brute force, combinatorics, dp

Perfect Squares

brute force, implementation, math

Too Easy Problems

binary search, brute force, data structures, greedy, sortings

Perun, Ult!

brute force, greedy, sortings

Inversion Counting

brute force, math

Three Garlands

brute force, constructive algorithms

Two Cakes

binary search, brute force, implementation

Generate Login

brute force, greedy, sortings

New Year and Curling

brute force, geometry, implementation, math

New Year and Buggy Bot

brute force, implementation

New Year and Counting Cards

brute force, implementation

Masha and Bears

brute force, implementation

Party

bitmasks, brute force, dp, graphs

Seating of Students

brute force, constructive algorithms, math

Swapping Characters

brute force, hashing, implementation, strings

Remove Extra One

brute force, data structures, math

Restoring the Expression

brute force, hashing, math

Proper Nutrition

brute force, implementation, number theory

Chtholly's request

brute force

Pizza Separation

brute force, implementation

Ralph And His Tour in Binary Country

brute force, data structures, trees

QAQ

brute force, dp

Beautiful Divisors

brute force, implementation

Pride

brute force, dp, greedy, math, number theory

Local Extrema

brute force, implementation

Solution for Cube

brute force, implementation

Cubes for Masha

brute force, implementation

ACM ICPC

brute force

Palindromic Cut

brute force, implementation, strings

Nikita and string

brute force, dp

Classroom Watch

brute force, math

Awards For Contestants

brute force, data structures, dp

Something with XOR Queries

brute force, interactive, probabilities

Search for Pretty Integers

brute force, implementation

The Overdosing Ubiquity

brute force, dfs and similar, graphs

The Artful Expedient

brute force, implementation

Huge Strings

bitmasks, brute force, dp, implementation, strings

Qualification Rounds

bitmasks, brute force, constructive algorithms, dp

Bark to Unlock

brute force, implementation, strings

Egg Roulette

bitmasks, brute force, divide and conquer, math, meet-in-the-middle

Hex Dyslexia

bitmasks, brute force, dp, graphs

Polycarp and Letters

brute force, implementation, strings

Kayaking

brute force, greedy, sortings

Quasi-palindrome

brute force, implementation

Lazy Security Guard

brute force, geometry, math

Which floor?

brute force, implementation

k-rounding

brute force, math, number theory

Set Theory

brute force, constructive algorithms

Marvolo Gaunt's Ring

brute force, data structures, dp

Tom Riddle's Diary

brute force, implementation, strings

Fraction

brute force, constructive algorithms, math

Dating

brute force, dfs and similar, graphs, trees

Digits

brute force, implementation, math

Random Elections

bitmasks, brute force, divide and conquer, fft, math

Five Dimensional Points

brute force, geometry, math

Tell Your World

brute force, geometry

Four Segments

brute force, data structures, dp

Math Show

brute force, greedy

Curriculum Vitae

brute force, implementation

Luba And The Ticket

brute force, greedy, implementation

Interactive LowerBound

brute force, interactive, probabilities

Kirill And The Game

brute force, two pointers

Generous Kefa

brute force, implementation

Mother of Dragons

brute force, graphs, math, meet-in-the-middle

Game of the Rows

brute force, greedy, implementation

Binary Blocks

brute force

Prefix Sums

binary search, brute force, combinatorics, math, matrices

Two Seals

brute force, implementation

Flag of Berland

brute force, implementation

Palindromic characteristics

brute force, dp, hashing, strings

Ever-Hungry Krakozyabra

brute force, combinatorics, greedy, math

Jury Marks

brute force, constructive algorithms

Bamboo Partition

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