Игра в Девятку III

*special problem, brute force

Игра в Девятку II

*special problem, brute force

Игра в Девятку I

*special problem, brute force, dp

Подкрутка II

*special problem, dp

Подкрутка I

*special problem, brute force, dp, greedy

Копирование файлов II

*special problem, binary search, brute force, math

Копирование файлов I

*special problem, brute force, implementation, math

Узкая дорога

*special problem, math

Cross-Language Program

*special problem, constructive algorithms

Six Characters

*special problem, constructive algorithms, strings

In Every Generation...

*special problem, strings

Are You Safe?

*special problem, implementation

Is it rated - 3

*special problem, combinatorics, dp, math

Pōja Verdon

*special problem, implementation, math

Mike's Sequence

*special problem, divide and conquer, implementation, math

Who Tested?

*special problem, expression parsing, trees

Communication Routing Challenge

*special problem

Two Railroads

*special problem

Physical Examination

*special problem, binary search, data structures

Laser Beams

*special problem, geometry, probabilities

A Battle Against a Dragon

*special problem, data structures, dp

Kotlinforces

*special problem, constructive algorithms, dp

Fix the String

*special problem, bitmasks, dp, greedy

Sweepstake

*special problem, brute force, constructive algorithms, implementation, math

Rhyme

*special problem, implementation

Epic Novel

*special problem, math

Sequence of Comparisons

*special problem

Pawns

*special problem

Excursions

*special problem, constructive algorithms, dfs and similar, flows, graph matchings, graphs

Submatrices

*special problem, bitmasks, data structures, dp

Biome Map

*special problem, constructive algorithms, dfs and similar, graphs

Binary String Partition

*special problem, binary search, greedy

Chess Team Forming

*special problem, binary search, data structures, greedy

String Searching

*special problem, hashing

Sweets

*special problem, data structures, implementation

Nearest Point Function

*special problem, implementation

Travel to Bertown

*special problem, implementation, math

Prefixes and Suffixes

*special problem, strings

Good Array

*special problem

Teams Forming

*special problem, sortings

Uniform String

*special problem, implementation

Frog Jumping

*special problem, math

A+B (Trial Problem)

*special problem

Сортировка слиянием

*special problem, binary search

Сортировка слиянием

*special problem, *special problem, brute force

Сортировка слиянием

*special problem

Редактируем Зингер | color

*special problem, *special problem

Симметричный амфитеатр

*special problem, constructive algorithms, dp

Мониторинг

*special problem

Мониторинг

*special problem, *special problem

Зингер | color

*special problem, implementation

Mysterious language again, seriously?

*special problem

L BREAK into program

*special problem

Encoded message

*special problem, implementation

Math

*special problem, math

Cakewalk

*special problem, greedy, implementation, shortest paths

Xenolith? Hippodrome?

*special problem, number theory

Fibonacci Words

*special problem, implementation

DMCA

*special problem, implementation, number theory

Is it rated - 2

*special problem, implementation, interactive

Flower Shop

*special problem, data structures, fft, math

Demonic Invasion

*special problem, flows

Build From Suffixes

*special problem, combinatorics, data structures

Painting Numbers

*special problem, data structures, greedy, number theory

Dogecoin

*special problem, *special problem, binary search, data structures

Palindromic Doubles

*special problem, data structures, dp

Problemsolving Marathon

*special problem, binary search, greedy

Two Policemen

*special problem, binary search, brute force, math

RBS Deletion

*special problem, greedy

From Zero To Y

*special problem, math

Zero-XOR Array

*special problem, dp

Cyclic Shifts

*special problem, strings

Rogue-like Game

*special problem, brute force, greedy, two pointers

Number Deletion Game

*special problem, dp, games, greedy

Neural Network Problem

*special problem, binary search, greedy

Chess Match

*special problem

Used Markers

*special problem, greedy

Black Friday

*special problem, implementation

Polycarp and the Language of Gods

*special problem, implementation, two pointers

Selling Hamburgers

*special problem

Chess Rush

*special problem, combinatorics, dp, implementation, math

Spring cleaning

*special problem, data structures, dfs and similar, graphs, trees

The Potion of Great Power

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

Star Trek

*special problem, combinatorics, dfs and similar, dp, games, graphs, matrices, trees

Roads

*special problem, geometry, sortings

Fancy Fence

*special problem, data structures, dsu, implementation, math, sortings

Viruses

*special problem, dp, shortest paths, string suffix structures

Village (Maximum)

*special problem, dfs and similar, trees

Village (Minimum)

*special problem, dp, greedy, trees

Graph

*special problem, binary search, dfs and similar, dp, math, ternary search

Joker

*special problem, bitmasks, data structures, divide and conquer, dsu

Mixture

*special problem, data structures, geometry, math, sortings

Colors

*special problem, binary search, constructive algorithms, interactive

Quantum Classification - 2

*special problem

Quantum Classification - 1

*special problem

Prepare state |01⟩ + |10⟩ + |11⟩

*special problem

Decrement

*special problem

Increment

*special problem

Distinguish Z from -Z

*special problem

Distinguish I ⊗ X from CNOT

*special problem