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

Nastya and Bees

graphs, interactive, probabilities

Interactive Rays

geometry, interactive

Arithmancy (Hard)

interactive

Rotary Laser Lock

binary search, interactive

Шардирование постов

*special problem, binary search, interactive

Centroid Guess

interactive, probabilities, trees

Xor-quiz

constructive algorithms, dp, interactive, math, number theory

Verifying Kingdom

binary search, divide and conquer, interactive, trees

Interactive Mex Tree

constructive algorithms, dfs and similar, interactive, trees

Knightmare (easy)

graphs, interactive, shortest paths

Arithmancy (Medium)

constructive algorithms, interactive, probabilities, strings

Anti-Proxy Attendance

constructive algorithms, dp, interactive, ternary search

Differentiating Games

games, interactive

Tree Diameter

interactive, trees

Finding the Vertex

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

Expected Twist

*special problem, interactive

Knightmare (hard)

graphs, interactive, shortest paths

Lost Nodes

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

Milutin's Plums

interactive

Strange device

binary search, interactive, math, trees

So Mean

interactive, math

Cursed Game

interactive

AI Takeover

interactive

Alesya and Discrete Math

divide and conquer, interactive

The Riddle of the Sphinx

binary search, data structures, data structures, interactive

Graph Coloring

data structures, graphs, interactive

New Year and Snowy Grid

dfs and similar, dsu, graphs, interactive

New Year and the Factorisation Collaboration

interactive, math, number theory

Zigzag Game

games, interactive

Roads in E City

interactive, math, probabilities, trees

Colors

*special problem, binary search, constructive algorithms, interactive

Median Queries

constructive algorithms, interactive, probabilities

Vabank

binary search, interactive

Interactive Bulls and Cows (Hard)

brute force, constructive algorithms, interactive

The Potion of Great Power

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

How to Learn You Score

constructive algorithms, interactive

Stuck Conveyor

binary search, constructive algorithms, interactive

Perfect Matching

data structures, divide and conquer, interactive, trees

Pepe Racing

constructive algorithms, implementation, interactive, sortings

Guess the Perimeter

binary search, interactive, number theory

Triangle Platinum?

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

Rainbow Coins

interactive

Rin and The Unknown Flower

constructive algorithms, greedy, interactive, math

Good Colorings

binary search, constructive algorithms, graphs, interactive

Fading into Fog

geometry, interactive, math, probabilities

Hot and Cold

binary search, interactive

Finding lines

constructive algorithms, divide and conquer, interactive

Matching Reduction

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

Guess the String

constructive algorithms, interactive, probabilities

Joking (Hard Version)

dp, interactive

Tubular Bells

interactive, math, number theory, probabilities

Enchanted Matrix

bitmasks, interactive, number theory

Cactus Search

interactive

Guess two numbers

binary search, interactive

Arithmancy (Easy)

brute force, constructive algorithms, interactive, strings

Legendary Tree

binary search, interactive, trees

Omkar and Modes

binary search, divide and conquer, interactive

Doremy's Perfect DS Class (Hard Version)

binary search, interactive

The Mind

constructive algorithms, interactive, probabilities

Is It Rated?

greedy, interactive, math, probabilities

Tricky Interactor

constructive algorithms, implementation, interactive

Interactive Factorial Guessing

brute force, games, implementation, interactive

AquaMoon and Wrong Coordinate

constructive algorithms, interactive, math

Yui and Mahjong Set

constructive algorithms, interactive

New Year and Finding Roots

constructive algorithms, implementation, interactive, trees

Pink Floyd

graphs, interactive

Jamie and To-do List

data structures, interactive, trees

Doremy's Perfect DS Class (Medium Version)

binary search, interactive

Crop Squares

constructive algorithms, geometry, interactive, math

Coffee Varieties (easy version)

graphs, interactive

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

Hidden Bipartite Graph

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

Baby Ehab's Hyper Apartment

binary search, graphs, interactive, sortings, two pointers

Madhouse (Hard version)

brute force, constructive algorithms, hashing, interactive, math

Olha and Igor

interactive, probabilities, trees

Spinach Pizza

games, geometry, greedy, interactive

Coffee Varieties (hard version)

constructive algorithms, graphs, interactive

Katya and Segments Sets

data structures, interactive, sortings

Lost Root

interactive, probabilities

Assiut Chess

brute force, constructive algorithms, interactive

Find a Gift

binary search, interactive, probabilities

Intriguing Selection

brute force, constructive algorithms, implementation, interactive, sortings

Library game

games, greedy, interactive, sortings

Anti-Theft Road Planning

bitmasks, constructive algorithms, divide and conquer, greedy, interactive, math