Treasure Hunt

graphs, interactive

Treasure Hunt

graphs, interactive

Treasure Hunt

graphs, interactive

Treasure Hunt

graphs, interactive

Treasure Hunt

graphs, interactive

Treasure Hunt

graphs, interactive

Treasure Hunt

graphs, interactive

Treasure Hunt

graphs, interactive

Treasure Hunt

graphs, interactive

Treasure Hunt

graphs, interactive

Treasure Hunt

graphs, interactive

BuberPool Taxi Optimization

*special problem, interactive

Draw Polygon Lines

*special problem, constructive algorithms, dp, geometry, interactive

Minus Operator

interactive

Hunting Hoglins in Hogwarts

interactive

Nastya and Bees

graphs, interactive, probabilities

Interactive Rays

geometry, interactive

Шардирование постов

*special problem, binary search, interactive

Rotary Laser Lock

binary search, interactive

Fumo Temple

interactive

Arithmancy (Hard)

interactive

Centroid Guess

interactive, probabilities, trees

Knightmare (easy)

graphs, interactive, shortest paths

Grid Game

constructive algorithms, games, graph matchings, greedy, interactive

Xor-quiz

constructive algorithms, dp, interactive, math, number theory

Differentiating Games

games, interactive

Finding the Vertex

brute force, dfs and similar, dp, interactive, trees

Knightmare (hard)

graphs, interactive, shortest paths

Tree Diameter

interactive, trees

Expected Twist

*special problem, interactive

Strange device

binary search, interactive, math, trees

Secret Lilies and Roses

interactive

Anti-Proxy Attendance

constructive algorithms, dp, interactive, ternary search

AI Takeover

*special problem, interactive

So Mean

interactive, math

Verifying Kingdom

binary search, divide and conquer, interactive, trees

Alesya and Discrete Math

divide and conquer, interactive

New Year and Snowy Grid

dfs and similar, dsu, graphs, interactive

The Riddle of the Sphinx

binary search, data structures, data structures, interactive

Graph Coloring

data structures, graphs, interactive

New Year and the Factorisation Collaboration

interactive, math, number theory

Cursed Game

interactive

Lost Nodes

constructive algorithms, dp, graphs, interactive, sortings, trees

Arithmancy (Medium)

constructive algorithms, interactive, probabilities, strings

Milutin's Plums

interactive

Interactive Mex Tree

constructive algorithms, dfs and similar, interactive, trees

Zigzag Game

games, interactive

The Potion of Great Power

*special problem, 2-sat, binary search, data structures, graphs, interactive, sortings, two pointers

Vabank

binary search, interactive

Median Queries

constructive algorithms, interactive, probabilities

Interactive Bulls and Cows (Hard)

brute force, constructive algorithms, interactive

Colors

*special problem, binary search, constructive algorithms, interactive

Roads in E City

interactive, math, probabilities, trees

Perfect Matching

data structures, divide and conquer, interactive, trees

Stuck Conveyor

binary search, constructive algorithms, interactive

How to Learn You Score

constructive algorithms, interactive

Triangle Platinum?

brute force, combinatorics, implementation, interactive, math, probabilities

Rainbow Coins

interactive

Kostyanych's Theorem

brute force, constructive algorithms, graphs, interactive

Penchick and Even Medians

binary search, constructive algorithms, interactive, probabilities

Pepe Racing

constructive algorithms, implementation, interactive, sortings

Kevin and Teams

constructive algorithms, graphs, interactive

Finding lines

constructive algorithms, divide and conquer, interactive

Rin and The Unknown Flower

constructive algorithms, greedy, interactive, math

Hot and Cold

binary search, interactive

Good Colorings

binary search, constructive algorithms, graphs, interactive

Guess the Perimeter

binary search, interactive, number theory

Fading into Fog

geometry, interactive, math, probabilities

Joking (Hard Version)

dp, interactive

Tubular Bells

interactive, math, number theory, probabilities

Guess two numbers

binary search, interactive

Matching Reduction

brute force, constructive algorithms, dfs and similar, flows, graph matchings, graphs, interactive

Guess the String

constructive algorithms, interactive, probabilities

Cactus Search

interactive

The Mind

constructive algorithms, interactive, probabilities

Omkar and Modes

binary search, divide and conquer, interactive

Enchanted Matrix

bitmasks, interactive, number theory

Legendary Tree

binary search, interactive, trees

Tricky Interactor

constructive algorithms, implementation, interactive

Doremy's Perfect DS Class (Hard Version)

binary search, interactive

Yui and Mahjong Set

constructive algorithms, interactive

Interactive Factorial Guessing

brute force, games, implementation, interactive

New Year and Finding Roots

constructive algorithms, implementation, interactive, trees

Jamie and To-do List

data structures, interactive, trees

Is It Rated?

greedy, interactive, math, probabilities

Crop Squares

constructive algorithms, geometry, interactive, math

Doremy's Perfect DS Class (Medium Version)

binary search, interactive

Pink Floyd

graphs, interactive

AquaMoon and Wrong Coordinate

constructive algorithms, interactive, math

Michael and Hotel

binary search, interactive, trees

Guess the number

dp, interactive

Doremy's Perfect DS Class (Easy Version)

binary search, interactive

Mark and the Online Exam

bitmasks, constructive algorithms, interactive, probabilities

Asesino (Hard Version)

constructive algorithms, dp, interactive

Baby Ehab's Hyper Apartment

binary search, graphs, interactive, sortings, two pointers

Olha and Igor

interactive, probabilities, trees

Hidden Bipartite Graph

binary search, constructive algorithms, dfs and similar, graphs, interactive

Coffee Varieties (easy version)

graphs, interactive

Madhouse (Hard version)

brute force, constructive algorithms, hashing, interactive, math

Fortnite

combinatorics, constructive algorithms, games, greedy, hashing, interactive, math, number theory, strings