Closest Equals

*special problem, data structures

Twisted Circuit

*special problem, brute force, implementation

MYSTERIOUS LANGUAGE

*special problem

Tree-String Problem

*special problem, dfs and similar, hashing, strings

A Piece of Cake

*special problem, implementation

Tanya and Colored Candies

*special problem, dp

Kids' Riddle

*special problem

BF Calculator

*special problem

Out of Controls

*special problem

Without Text

*special problem

Stepan's Series

*special problem, dp

Bars

*special problem, binary search

Teams

*special problem, binary search, greedy, math

Dune II: Battle For Arrakis

*special problem, data structures, greedy, math

Chess Match

*special problem

Double Permutation Inc.

*special problem, binary search, greedy

Kotlinforces

*special problem, constructive algorithms, dp

Domain

*special problem, expression parsing

Build Railway Stations

*special problem, greedy, trees

Array Sum

*special problem

Counting Fridays

*special problem

Divisibility Check

*special problem

Date Change

*special problem

Truncatable primes

*special problem

Non-decimal sum

*special problem

Village (Minimum)

*special problem, dp, greedy, trees

Rosetta Problem

*special problem

Hostname Aliases

*special problem, binary search, data structures, implementation, sortings, strings

Graph

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

Amusement Park

*special problem, ternary search

Significant Cups

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

Maximum Sum Subarrays

*special problem, dp

Neural Network Problem

*special problem, binary search, greedy

Levenshtein distance

*special problem

Number Deletion Game

*special problem, dp, games, greedy

Maximal Difference

*special problem

Triskaidekaphobia

*special problem

Points in triangle

*special problem, geometry

Jumping frogs

*special problem

Battleship

*special problem, dfs and similar, implementation

Euclidean Distance

*special problem

Math

*special problem, math

Mysterious language again, seriously?

*special problem

On a plane

*special problem, geometry

Caesar Cipher

*special problem

BHTML+BCSS

*special problem, dfs and similar, expression parsing

Repairing Of String

*special problem, constructive algorithms

Palindromic Doubles

*special problem, data structures, dp

Игра в Девятку II

*special problem, brute force

Path Canonization

*special problem

Chain Letter

*special problem, dfs and similar, graphs

INI-file

*special problem, implementation

Suffix Subgroup

*special problem, strings

Hungarian Notation

*special problem

Spring cleaning

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

Big Number and Remainder

*special problem, math, number theory

Array Sorting

*special problem

Dogecoin

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

Array sorting

*special problem, sortings

Two IP Cameras

*special problem, math, number theory

kotlinkotlinkotlinkotlin...

*special problem, graphs, implementation, strings

Игра в Девятку III

*special problem, brute force

Table Bowling

*special problem, sortings

Composing Of String

*special problem, dp

Pairwise Sums

*special problem

Hamming Distance

*special problem

Perse-script

*special problem, expression parsing

The Potion of Great Power

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

Feed the Golorp

*special problem

Sort the Table

*special problem, sortings

Sum of Digits of Sums

*special problem, binary search, data structures

Rotate Matrix

*special problem

Interval Coloring

*special problem, greedy, math

Village (Maximum)

*special problem, dfs and similar, trees

L BREAK into program

*special problem

HQ

*special problem, constructive algorithms

Painting Numbers

*special problem, data structures, greedy, number theory

A Battle Against a Dragon

*special problem, data structures, dp

King's Path

*special problem, math, trees

Different variables

*special problem

Loader

*special problem, graphs

Encoded message

*special problem, implementation

Star Trek

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

Rogue-like Game

*special problem, brute force, greedy, two pointers

Colors

*special problem, binary search, constructive algorithms, interactive

Perfectionist Arkadiy

*special problem, number theory

Pens And Days Of Week

*special problem, binary search, number theory

Pool Records

*special problem, greedy

Game with Segments

*special problem, data structures, games

Superstitions Inspection

*special problem

Black Cat Rush

*special problem

Inverse Problem

*special problem, combinatorics, dp

Joker

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

Greedy Petya

*special problem, dfs and similar, graphs, greedy

Build From Suffixes

*special problem, combinatorics, data structures

Viruses

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

Mixture

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

Roads

*special problem, geometry, sortings

Laser Beams

*special problem, geometry, probabilities

Pac-Man 2.0

*special problem, dp