Buying gifts

data structures, greedy, sortings

Tourist's Notes

binary search, brute force, greedy, implementation, math

Navigation System

dfs and similar, graphs, shortest paths

Lost Tree

constructive algorithms, interactive, trees

Months and Years

implementation

Prefixes and Suffixes

strings

Match Points

binary search, greedy, sortings, ternary search, two pointers

Connected Components?

data structures, dfs and similar, dsu, graphs

Bmail Computer Network

*special problem, dfs and similar, trees

New Year Book Reading

constructive algorithms, greedy, implementation, math

Molly's Chemicals

binary search, brute force, data structures, implementation, math

Slimes

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

Friendly Spiders

dfs and similar, graphs, math, number theory, shortest paths

Selling a Menagerie

dfs and similar, dsu, graphs, implementation, math

Moscow Gorillas

binary search, dp, greedy, implementation, math, two pointers

AB-string

binary search, combinatorics, dp, strings

Modular Stability

combinatorics, math, number theory

Vasya and the Bus

greedy, math

Double Matrix

brute force, greedy

Xor-Subsequence (easy version)

bitmasks, brute force, dp, strings, trees, two pointers

Ilya and Sticks

greedy, math, sortings

Fruits

greedy, implementation, sortings

Plant

math

Camp Schedule

greedy, hashing, strings

Petya and Array

data structures, divide and conquer, two pointers

Special Offer! Super Price 999 Bourles!

implementation

Buns

dp

Triangle

brute force, geometry

Searching for Graph

brute force, constructive algorithms, graphs

Vasya and Triangle

geometry, number theory

Mahmoud and Ehab and the wrong algorithm

constructive algorithms, trees

2Char

brute force, implementation

Marcin and Training Camp

brute force, greedy

Lara Croft and the New Game

implementation, math

Weights Division (easy version)

data structures, dfs and similar, greedy, trees

Barnicle

brute force, implementation, math, strings

Journey

dp, graphs

Tritonic Iridescence

implementation

Nezzar and Board

constructive algorithms, math, number theory

Black Square

implementation

Bear and String Distance

greedy, strings

Compressed Bracket Sequence

brute force, implementation

The Tag Game

dfs and similar, graphs

A Lot of Games

dfs and similar, dp, games, implementation, strings, trees

Years

data structures, sortings

Mishka and trip

implementation, math

Array Splitting

greedy, sortings

Okabe and Banana Trees

brute force, math

Bear and Blocks

binary search, data structures, dp, math

Make Palindrome

constructive algorithms, greedy, strings

Domino Effect

Decorate Apple Tree

constructive algorithms, dfs and similar, dp, graphs, greedy, sortings, trees

Pōja Verdon

*special problem, implementation, math

AquaMoon and Chess

combinatorics, math

Salary Changing

binary search, greedy, sortings

Domino for Young

dp, greedy, math

Fix a Tree

constructive algorithms, dfs and similar, dsu, graphs, trees

Phone Numbers

constructive algorithms, implementation, strings

Diagonal Walking v.2

math

Rock-paper-scissors

implementation, schedules

XOR Guessing

bitmasks, interactive, math

Magic Will Save the World

binary search, bitmasks, brute force, dp

Mike and Shortcuts

dfs and similar, graphs, greedy, shortest paths

Light It Up

greedy

Monotonic Renumeration

combinatorics, sortings

Beautiful Sequence

brute force, constructive algorithms, greedy

Mike and gcd problem

dp, greedy, number theory

Karen and Game

brute force, greedy, implementation

Garage

binary search, geometry, math

Not Afraid

greedy, implementation, math

Year of University Entrance

*special problem, implementation, sortings

Photographer

greedy, sortings

Copying Homework

Set To Max (Easy Version)

brute force, constructive algorithms, greedy

Slava and tanks

constructive algorithms

Was it Rated?

*special problem, *special problem, *special problem, brute force, implementation

Liebig's Barrels

greedy

Masha and Bears

brute force, implementation

A Simple Task

data structures, sortings, strings

An express train to reveries

constructive algorithms

Plus and Square Root

constructive algorithms, math

Tree Cutting (Easy Version)

dfs and similar, trees

Ela and Crickets

constructive algorithms, games, implementation, math

Primes on Interval

binary search, number theory, two pointers

Sheikh (Easy version)

binary search, bitmasks, greedy, two pointers

Makes And The Product

combinatorics, implementation, math, sortings

Remainders Game

chinese remainder theorem, math, number theory

Cubes for Masha

brute force, implementation

Perform Easily

binary search, brute force, dp, implementation, sortings, two pointers

Sorting by Subsequences

dfs and similar, dsu, implementation, math, sortings

Choosing Symbol Pairs

strings

Center Alignment

implementation, strings

Ilya and Matrix

constructive algorithms, greedy, implementation, sortings

Count GCD

combinatorics, math, number theory

Knights of a Polygonal Table

greedy, implementation, sortings

Little Elephant and Interval

binary search, combinatorics, dp

Difference Array

brute force, data structures, implementation, sortings

XOR Construction

bitmasks, constructive algorithms, data structures, math, string suffix structures, trees

Gardening Friends

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

Misha and Forest

constructive algorithms, data structures, greedy, sortings, trees