Simple Strings

dp, greedy, strings

To Hack or not to Hack

brute force, dp, greedy

Binary Table

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

Hard Process

binary search, dp, two pointers

Fence Divercity

combinatorics, dp, number theory

Bear and Compressing

brute force, dfs and similar, dp, strings

Joysticks

dp, greedy, implementation, math

Zip-line

binary search, data structures, dp, hashing

Table Compression

dfs and similar, dp, dsu, graphs, greedy

Image Preview

binary search, brute force, dp, two pointers

Intellectual Inquiry

dp, greedy, strings

Robot Rapping Results Report

binary search, dp, graphs

Bears and Juice

dp, math, meet-in-the-middle

Bear and Destroying Subtrees

dp, math, probabilities, trees

Levels and Regions

dp

Little Artem and Random Variable

dp, implementation, math, probabilities

Running with Obstacles

*special problem, data structures, dp, greedy

The Chocolate Spree

dfs and similar, dp, graphs, trees

Fibonacci-ish

brute force, dp, hashing, implementation, math

Spy Syndrome 2

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

Thief in a Shop

divide and conquer, dp, fft, math

Product Sum

data structures, dp, geometry

Famil Door and Roads

combinatorics, data structures, dfs and similar, dp, probabilities, trees

Babaei and Birthday Cake

data structures, dp

Famil Door and Brackets

dp, strings

Magic Numbers

dp

New Skateboard

dp

Preorder Test

binary search, dfs and similar, dp, graphs, greedy, trees

XOR Equation

dp, math

Raffles

data structures, dp, greedy, math

Group Projects

dp

Jerry's Protest

brute force, combinatorics, dp, probabilities

Cards

constructive algorithms, dp, math

Transforming Sequence

combinatorics, dp, fft, math

Electric Charges

binary search, dp

Array GCD

dp, greedy, number theory

Wet Shark and Blocks

dp, matrices

Combining Slimes

dp, math, matrices, probabilities

Hamiltonian Spanning Tree

dfs and similar, dp, graph matchings, greedy, trees

Running Track

dp, greedy, strings, trees

Longtail Hedgehog

dp, graphs

Puzzle Lover

dp, hashing, strings

Kingdom and its Cities

dfs and similar, divide and conquer, dp, graphs, sortings, trees

Skills

binary search, brute force, dp, greedy, sortings, two pointers

Simba on the Circle

dp

New Year and Ancient Prophecy

dp, hashing, strings

New Year and Domino

dp, implementation

Zuma

dp

Chain Reaction

binary search, dp

Alternative Thinking

dp, greedy, math

Approximating a Constant Range

dp, implementation, two pointers

A Museum Robbery

data structures, dp

Kleofáš and the n-thlon

dp, math, probabilities

Sandy and Nuts

bitmasks, dp, trees

Chocolate Bar

brute force, dp

Subsequences

data structures, dp

Restaurant

dp, greedy, sortings

Wilbur and Strings

dfs and similar, dp, graphs, strings

Wilbur and Trees

dp, math, probabilities, sortings

Strange Calculation and Cats

dp, matrices

Super M

dfs and similar, dp, graphs, trees

Top Secret Task

dp

Duff in Beach

dp

Digits of Number Pi

dp, implementation, strings

Boolean Function

bitmasks, dp, expression parsing

Number of Binominal Coefficients

dp, math, number theory

Once Again...

constructive algorithms, dp, matrices

Zublicanes and Mumocrates

dp, trees, two pointers

Kojiro and Furrari

dp, greedy

Kefa and Dishes

bitmasks, dp

Kefa and First Steps

brute force, dp, implementation

LCS Again

dp, greedy

Modulo Sum

combinatorics, data structures, dp, two pointers

Flights for Regular Customers

dp, matrices

Bots

combinatorics, dp, math, number theory

Bulbo

dp, greedy

Bear and Cavalry

data structures, divide and conquer, dp

Bear and Blocks

binary search, data structures, dp, math

Minimization

dp, greedy, sortings

Pig and Palindromes

combinatorics, dp

Longest Increasing Subsequence

data structures, dp

Symmetric and Transitive

combinatorics, dp, math

Mausoleum

dp

Geometric Progression

binary search, data structures, dp

Clique in the Divisibility Graph

dp, math, number theory

Gerald and Path

dp, sortings

Gerald and Giant Chess

combinatorics, dp, math, number theory

Ann and Half-Palindrome

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

Arthur and Table

brute force, data structures, dp, greedy, math, sortings

Kyoya and Train

dp, fft, graphs, math, probabilities

Kyoya and Colored Balls

combinatorics, dp, math

Vanya and Brackets

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

Vanya and Scales

brute force, dp, greedy, math, meet-in-the-middle, number theory

Divisibility by Eight

brute force, dp, math

Two Substrings

brute force, dp, greedy, implementation, strings

Mike and Fun

brute force, dp, greedy, implementation

Mike and Foam

bitmasks, combinatorics, dp, math, number theory

Mike and Feet

binary search, data structures, dp, dsu

Soldier and Number Game

constructive algorithms, dp, math, number theory

Woodcutters

dp, greedy