In Search of Truth (Hard Version)

constructive algorithms, interactive, math, meet-in-the-middle, probabilities

The Top Scorer

combinatorics, dp, math, probabilities

Hossam and Range Minimum Query

binary search, bitmasks, data structures, hashing, probabilities, strings, trees

Rare Coins

combinatorics, math, probabilities

Sports Betting

bitmasks, combinatorics, dp, graphs, math, probabilities

Expected Destruction

combinatorics, dp, math, probabilities

Kuroni and the Punishment

math, number theory, probabilities

Destiny

data structures, probabilities

Plane of Tanks: Duel

brute force, dp, math, probabilities

Pokermon League challenge

math, probabilities

Gambling Nim

bitmasks, math, matrices, probabilities

Startup Funding

binary search, constructive algorithms, data structures, probabilities, two pointers

Inversions problem

dp, probabilities

Valera and Number

bitmasks, dp, math, probabilities

Lost Root

interactive, probabilities

Mighty Rock Tower

brute force, combinatorics, dp, math, probabilities

Tickets

combinatorics, math, probabilities

Square Table

constructive algorithms, math, probabilities

Crossword Expert

combinatorics, dp, number theory, probabilities, two pointers

Inversions After Shuffle

data structures, probabilities

Little Artem and Random Variable

dp, implementation, math, probabilities

Beautiful Mirrors with queries

data structures, probabilities

Name That Tune

dp, probabilities, two pointers

LRU

bitmasks, dp, math, probabilities

Koxia and Tree

combinatorics, dfs and similar, dp, dsu, math, probabilities, trees

Expected Damage

binary search, combinatorics, probabilities

Broken robot

dp, math, probabilities

Love-Hate

bitmasks, brute force, dp, probabilities

Party Organization

brute force, math, probabilities

Castle

dp, greedy, probabilities, sortings, trees

Wilbur and Trees

dp, math, probabilities, sortings

Eyes Closed

data structures, probabilities

Famil Door and Roads

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

Barrels and boxes

brute force, combinatorics, math, number theory, probabilities

Nauuo and Pictures (easy version)

dp, probabilities

DZY Loves FFT

probabilities

Hyakugoku and Ladders

dp, probabilities, shortest paths

Sonya and Informatics

combinatorics, dp, matrices, probabilities

ZS and The Birthday Paradox

math, number theory, probabilities

Kleofáš and the n-thlon

dp, math, probabilities

Tourism

dp, graphs, probabilities

Card Bag

dp, math, probabilities

Robot Cleaner Revisit

implementation, math, probabilities

Intersection and Union

data structures, dp, matrices, probabilities

Jellyfish and EVA

dp, graphs, greedy, math, probabilities

Inversion Expectation

dp, math, probabilities

Vasya and Magic Matrix

dp, math, probabilities

Alternating Tree

combinatorics, dfs and similar, divide and conquer, dp, probabilities, trees

Steps to One

dp, math, number theory, probabilities

Tree Array

brute force, combinatorics, dp, graphs, math, probabilities, trees

LuoTianyi and the Floating Islands (Hard Version)

combinatorics, dfs and similar, math, probabilities, trees

Help King

implementation, probabilities, trees

Petya and Tree

binary search, dfs and similar, probabilities, sortings, trees

Chemistry Lab

dp, geometry, probabilities

Smart Cheater

data structures, math, probabilities

Interstellar battle

math, probabilities, trees

BinCoin

binary search, divide and conquer, hashing, implementation, probabilities, trees

Mushroom Gnomes - 2

binary search, data structures, probabilities, sortings

Bath Queue

combinatorics, dp, probabilities

ace5 and Task Order

constructive algorithms, divide and conquer, implementation, interactive, probabilities, sortings

Another Sith Tournament

bitmasks, dp, math, probabilities

In Search of Truth (Easy Version)

constructive algorithms, interactive, math, meet-in-the-middle, probabilities

New Year and Arbitrary Arrangement

dp, math, probabilities

Makoto and a Blackboard

dp, math, number theory, probabilities

Arithmetic Progression

binary search, interactive, number theory, probabilities

Jon and Orbs

dp, math, probabilities

Game on Tree

implementation, math, probabilities, trees

Bombing

binary search, dp, probabilities

Third Month Insanity

dp, probabilities, trees

Playlist

math, probabilities, sortings

Magic Trick

combinatorics, math, probabilities

Fishes

data structures, graphs, greedy, probabilities, shortest paths

Assimilation IV

combinatorics, dp, math, probabilities, two pointers

Subway Pursuit

binary search, interactive, probabilities

Guess Game

bitmasks, data structures, games, math, probabilities, sortings, strings, trees

Flexible String Revisit

combinatorics, dp, math, probabilities

Beautiful Mirrors

data structures, dp, math, probabilities

Little Elephant and Furik and Rubik

math, probabilities

Something with XOR Queries

brute force, interactive, probabilities

First Digit Law

dp, math, probabilities

Second price auction

bitmasks, probabilities

Bubble Strike

combinatorics, math, probabilities, ternary search

Interactive LowerBound

brute force, interactive, probabilities

Messages

brute force, dp, greedy, probabilities, sortings

Intercity Travelling

combinatorics, math, probabilities

Let's Play Osu!

dp, math, probabilities

Edge Split

brute force, constructive algorithms, dfs and similar, dsu, graphs, probabilities, trees

Wish I Knew How to Sort

dp, math, probabilities

Lucky Probability

brute force, probabilities

Maxim and Restaurant

dp, math, probabilities

Dexterina’s Lab

games, matrices, probabilities

Amazing Trick

constructive algorithms, graph matchings, math, probabilities

Jeff and Furik

combinatorics, dp, probabilities

Fafa and Ancient Alphabet

math, probabilities

Score of a Tree

bitmasks, combinatorics, dfs and similar, dp, math, probabilities, trees

Good Trip

combinatorics, dp, math, probabilities

Checkpoints

brute force, constructive algorithms, greedy, math, probabilities

Fish

bitmasks, dp, probabilities

Bad Luck Island

dp, probabilities

Need for Pink Slips

bitmasks, brute force, dfs and similar, implementation, math, probabilities