Breaking Good

dfs and similar, dp, graphs, shortest paths

Not Quite Lee

combinatorics, dp, math, number theory

Obsessive String

dp, strings

Thief in a Shop

divide and conquer, dp, fft, math

Erase Subsequences

dp, strings

Flexible String Revisit

combinatorics, dp, math, probabilities

Playlist for Polycarp (easy version)

bitmasks, combinatorics, dp

Fibonacci-ish

brute force, dp, hashing, implementation, math

Makoto and a Blackboard

dp, math, number theory, probabilities

Shovels Shop

dp, greedy, sortings

Decoding Genome

dp, matrices

Tourism

dfs and similar, dp, dsu, graphs, greedy, trees

Road Improvement

dp, trees

Cards and Joy

dp

Priority Queue

combinatorics, dp, implementation, math, ternary search

Maximum Balanced Circle

constructive algorithms, dp, greedy, two pointers

Another Filling the Grid

combinatorics, dp, math

Product Oriented Recurrence

dp, math, matrices, number theory

Escape Through Leaf

data structures, dp, geometry

Minimization

dp, greedy, sortings

Count Binary Strings

data structures, dp

Paint the Tree

dp, sortings, trees

Counting Rectangles is Fun

brute force, divide and conquer, dp

Upgrading Array

dp, greedy, math, number theory

New Year and Ancient Prophecy

dp, hashing, strings

Equilibrium

data structures, dp, greedy

Chat

*special problem, dp

Buses

binary search, data structures, dp

Tree Array

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

Let's Go Rolling!

dp, sortings

Sum Over Zero

data structures, dfs and similar, dp

Ezzat and Grid

data structures, dp, greedy

You Are Given a WASD-string...

brute force, data structures, dp, greedy, implementation, math, strings

Karen and Supermarket

brute force, dp, trees

Colorings and Dominoes

combinatorics, dp, greedy, math

Koa and the Beach (Hard Version)

constructive algorithms, dp, greedy, implementation

Learning to Paint

binary search, data structures, dfs and similar, dp, greedy, implementation, sortings

Anthem of Berland

dp, strings

Kindergarten

data structures, dp, greedy

Divisible by Twenty-Five

brute force, dfs and similar, dp

Perfect Groups

dp, math, number theory

Segment Sum

bitmasks, combinatorics, dp, math

Remove Directed Edges

dfs and similar, dp, graphs

Messages

brute force, dp, greedy, probabilities, sortings

Monster Invaders

dp, greedy, implementation

Sum over all Substrings (Hard Version)

bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings

Counting Binary Strings

combinatorics, dp, math

Cunning Gena

bitmasks, dp, greedy, sortings

Neko and Aki's Prank

dp, greedy, trees

Yet Another Substring Reverse

bitmasks, dp

Red-Black Number

dfs and similar, dp, implementation, math, meet-in-the-middle

Super M

dfs and similar, dp, graphs, trees

Counting Shortcuts

data structures, dfs and similar, dp, graphs, shortest paths

Wi-Fi

data structures, dp, greedy

And Reachability

bitmasks, dp

Driving Test

data structures, dp, greedy

Lunar New Year and Red Envelopes

data structures, dp

Connected Components

data structures, dfs and similar, dp, dsu

Berzerk

dfs and similar, dp, games

Work Group

dfs and similar, dp, graphs, strings, trees

Power Board

brute force, dp, math, number theory

Asterism (Hard Version)

binary search, combinatorics, dp, math, number theory, sortings

Cipher

combinatorics, dp

The World Is Just a Programming Task (Easy Version)

brute force, dp, greedy, implementation

Jeff and Furik

combinatorics, dp, probabilities

Treasure Hunting

binary search, dp, greedy, implementation

Hot Start Up (hard version)

data structures, dp

Candy Party (Hard Version)

bitmasks, constructive algorithms, dp, greedy, implementation, math

Logo Turtle

dp

Minimal Coverage

dp

Find a Number

dp, graphs, number theory, shortest paths

Running Track

dp, greedy, strings, trees

Rearrange Brackets

brute force, dp, greedy, sortings, strings

Bananas in a Microwave

dfs and similar, dp, graphs, implementation

New Year and Arbitrary Arrangement

dp, math, probabilities

Multicolored Marbles

dp, math

Not Escaping

data structures, dp, implementation, shortest paths, two pointers

Leha and another game about graph

constructive algorithms, data structures, dfs and similar, dp, graphs

Staircases

brute force, combinatorics, data structures, dfs and similar, dp, implementation, math

Count Seconds

brute force, constructive algorithms, dp, graphs, implementation, math

Product Sum

data structures, dp, geometry

Symmetric and Transitive

combinatorics, dp, math

Mocha and Stars

combinatorics, dp, fft, math, number theory

Another MEX Problem

bitmasks, brute force, dp, shortest paths

Turtle Mission: Robot and the Earthquake

dfs and similar, dp, graphs, shortest paths

Rain and Umbrellas

dp

File List

dp, greedy, implementation

Make It One

bitmasks, combinatorics, dp, math, number theory, shortest paths

Pawn

dp

Divan and Kostomuksha (hard version)

dp, number theory

Ball Sorting

data structures, dp, sortings

Correcting Mistakes

constructive algorithms, dp, greedy, hashing, strings, two pointers

Skills

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

Fruit Sequences

binary search, data structures, divide and conquer, dp, two pointers

Vasya and Binary String

dp

Ralph and Mushrooms

dp, graphs

An overnight dance in discotheque

dfs and similar, dp, geometry, greedy, trees

Girl Permutation

combinatorics, dp, math, number theory

Bear and Tower of Cubes

binary search, dp, greedy

Bits And Pieces

bitmasks, dfs and similar, dp, greedy