Literature Lesson

implementation

Last Chance

data structures, implementation, strings

Palindromes

dp, strings

History

sortings

Permutation

greedy

Postcards and photos

implementation

Ternary Logic

implementation, math

Presents

implementation

Weak Subsequence

combinatorics

Cycle

brute force, dfs and similar, implementation

Zero-One

constructive algorithms, games, greedy

Rectangle and Square

brute force, geometry, math

Replacement

greedy, implementation, sortings

Swaps

constructive algorithms, graphs, greedy

Pairs of Numbers

brute force, dfs and similar, math, number theory

Average Numbers

brute force, implementation

Unary

implementation

HQ9+

implementation

Bits of merry old England

flows, graphs

Constants in the language of Shakespeare

constructive algorithms, dp, greedy

Logo Turtle

dp

Piet

implementation

Turing Tape

implementation

Present to Mom

binary search, two pointers

Yet Another Task with Queens

sortings

Subway

dfs and similar, graphs

The World is a Theatre

combinatorics, math

Opposites Attract

implementation, math

cAPS lOCK

implementation, strings

Date calculation

*special problem

Array sorting

*special problem, sortings

Balanced brackets

*special problem

CAPS LOCK ON

*special problem

Prime factorization

*special problem

Tribonacci numbers

*special problem

Exponentiation

*special problem

Decimal sum

*special problem

Gnikool Ssalg

*special problem, implementation, strings

Hexagonal numbers

*special problem, implementation

Students and Shoelaces

brute force, dfs and similar, graphs, implementation

Cookies

implementation

Birthday

geometry, math

Numbers

constructive algorithms, implementation

Games with Rectangle

combinatorics, dp

String

brute force, constructive algorithms, hashing, implementation, string suffix structures, strings

Statues

dfs and similar

Canvas Frames

implementation

Wasted Time

geometry

Pills

brute force, flows

Fibonacci Sums

dp, math

E-reader Display

constructive algorithms, greedy

Password

binary search, dp, hashing, string suffix structures, strings

Hot Bath

binary search, brute force, math

MST Company

binary search, graphs

Two progressions

constructive algorithms, greedy

Hobbits' Party

constructive algorithms, greedy

Simple XML

implementation

Measuring Lengths in Baden

math

Permutations

brute force, combinatorics, implementation

The number of positions

math

Maze

dfs and similar, dp, probabilities, trees

String

string suffix structures

Brackets

combinatorics, dp, greedy

Squares

math

Prime Permutation

implementation, number theory, strings

Lucky Substring

brute force, implementation

Lucky Division

brute force, number theory

Lucky Array

data structures

Lucky Segments

binary search, implementation, two pointers

Lucky Permutation

brute force, combinatorics, number theory

Lucky Transformation

strings

Lucky Sum

implementation

Minimum Sum

divide and conquer, geometry, sortings

Luck is in Numbers

greedy

Brevity is Soul of Wit

graph matchings

Boom

implementation

Spiders

dp, greedy, trees

Put Knight!

games, math

Three Sons

brute force

Winnie-the-Pooh and honey

implementation, math

Quiz League

implementation

Elevator

brute force, implementation, math

Alternative Reality

geometry

String Transformation

hashing, strings

Education Reform

dp

Before Exam

constructive algorithms, implementation, sortings

Epic Game

implementation

Bertown roads

dfs and similar, graphs

Caesar's Legions

dp

Fancy Number

brute force, greedy, sortings, strings

Present from Lena

constructive algorithms, implementation

String Task

implementation, strings

Tree or not Tree

data structures, divide and conquer, implementation, trees

Not Quick Transformation

divide and conquer, math

Cycle

dfs and similar, graphs

Very Interesting Game

brute force, number theory

Elevator

implementation, math

Little Pigs and Wolves

greedy, implementation

Tram

implementation

Linear Kingdom Races

data structures, dp