GCD Problem

brute force, constructive algorithms, math, number theory

Three Indices

brute force, data structures

Longest Divisors Interval

brute force, combinatorics, greedy, math, number theory

Hexadecimal's theorem

brute force, constructive algorithms, implementation, number theory

PizzaForces

brute force, math

Array Reodering

brute force, greedy, math, number theory, sortings

Filling Diamonds

brute force, dp, implementation, math

Unique Number

brute force, greedy, math

Balanced Round

brute force, greedy, implementation, sortings

Magic Numbers

brute force, greedy

Vasya and Socks

brute force, implementation, math

Candies

brute force, math

New Year's Number

brute force, dp, math

Kefa and First Steps

brute force, dp, implementation

Phone Code

*special problem, brute force, implementation

Series of Crimes

brute force, geometry, implementation

Bank Robbery

brute force, implementation

Data Center

brute force, implementation

Game Outcome

brute force

Ball Game

brute force, implementation

Display Size

brute force, math

Local Extrema

brute force, implementation

Friends Meeting

brute force, greedy, implementation, math

Vladik and Courtesy

brute force, implementation

Reconnaissance

brute force

Colour the Flag

brute force, implementation

Buying A House

brute force, implementation

Far Relative’s Birthday Cake

brute force, combinatorics, constructive algorithms, implementation

Fraction

brute force, constructive algorithms, math

Phone Numbers

brute force

Kuroni and the Gifts

brute force, constructive algorithms, greedy, sortings

Triangular numbers

brute force, math

New Year and Counting Cards

brute force, implementation

Suits

brute force, greedy, math

Prison Break

brute force, math

Milica and String

brute force, implementation, strings

Serval and Inversion Magic

brute force, implementation, strings, two pointers

Stones

brute force, greedy, math

LLPS

binary search, bitmasks, brute force, greedy, implementation, strings

Supermarket

brute force, greedy, implementation

Maximum Substring

brute force, greedy, implementation

GukiZ and Contest

brute force, implementation, sortings

Taymyr is calling you

brute force, implementation, math

Lex String

brute force, greedy, implementation, sortings, two pointers

Simple Design

brute force, greedy, math

Ehab and another construction problem

brute force, constructive algorithms

Simply Strange Sort

brute force, implementation, sortings

Eleven

brute force, implementation

Two Permutations

brute force, constructive algorithms

Serval and Mocha's Array

brute force, math, number theory

New Year and the Christmas Ornament

brute force, implementation, math

Distance

brute force, constructive algorithms

PolandBall and Hypothesis

brute force, graphs, math, number theory

Tokitsukaze and Enhancement

brute force

Marketing Scheme

brute force, constructive algorithms, greedy, math

Nene's Game

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

K-th Largest Value

brute force, greedy, implementation

AquaMoon and Two Arrays

brute force, greedy

Got Any Grapes?

brute force, greedy, implementation

Maximum Cake Tastiness

brute force, greedy, implementation, sortings

Typical Interview Problem

brute force, implementation, strings

Telephone Number

brute force, greedy, strings

Gardener and the Capybaras (easy version)

brute force, constructive algorithms, implementation

Even Subset Sum Problem

brute force, dp, greedy, implementation

Robot Cleaner

brute force, implementation, math

Hotelier

brute force, data structures, implementation

Omkar and Bad Story

brute force, constructive algorithms

Tom Riddle's Diary

brute force, implementation, strings

Beautiful Sequence

brute force, greedy

Anti-Fibonacci Permutation

brute force, constructive algorithms, implementation

Cirno's Perfect Bitmasks Classroom

bitmasks, brute force

Select Three Sticks

brute force, greedy, sortings

Interesting Sum

brute force, data structures, greedy, math, sortings

Second Order Statistics

brute force

Equation

brute force, math

Quality vs Quantity

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

We Need the Zero

bitmasks, brute force

Dawid and Bags of Candies

brute force, implementation

Minimums and Maximums

brute force, math

Distinct Digits

brute force, implementation

There Are Two Types Of Burgers

brute force, greedy, implementation, math

Make a triangle!

brute force, geometry, math

Divide it!

brute force, greedy, implementation

Sorting Parts

brute force, sortings

Mishka and Contest

brute force, implementation

Bovine Dilemma

brute force, geometry, math

Make A Equal to B

brute force, greedy, sortings

GCD Sum

brute force, math

Computer Game

brute force, dfs and similar, dp, implementation

Divan and a Store

brute force, constructive algorithms, greedy

Playing with Dice

brute force

Two Towers

brute force, implementation, strings

TubeTube Feed

brute force, implementation

Halloumi Boxes

brute force, greedy, sortings

Integer Moves

brute force, math

Diverse Team

brute force, implementation

Extremely Round

brute force, implementation

Meximization

brute force, data structures, greedy, sortings

Colored Balls: Revisited

brute force, greedy, implementation, sortings

Sum of Three

brute force, constructive algorithms, math