Fibonacci-ish

brute force, dp, hashing, implementation, math

Makoto and a Blackboard

dp, math, number theory, probabilities

Playlist for Polycarp (easy version)

bitmasks, combinatorics, dp

Thief in a Shop

divide and conquer, dp, fft, math

Tourism

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

Shovels Shop

dp, greedy, sortings

Flexible String Revisit

combinatorics, dp, math, probabilities

Road Improvement

dp, trees

Priority Queue

combinatorics, dp, implementation, math, ternary search

Minimization

dp, greedy, sortings

Decoding Genome

dp, matrices

Product Oriented Recurrence

dp, math, matrices, number theory

Paint the Tree

dp, sortings, trees

Upgrading Array

dp, greedy, math, number theory

Counting Rectangles is Fun

brute force, divide and conquer, dp

Maximum Balanced Circle

constructive algorithms, dp, greedy, two pointers

Escape Through Leaf

data structures, dp, geometry

New Year and Ancient Prophecy

dp, hashing, strings

Equilibrium

data structures, dp, greedy

Cards and Joy

dp

Count Binary Strings

data structures, dp

Chat

*special problem, dp

Buses

binary search, data structures, dp

Another Filling the Grid

combinatorics, dp, math

Tree Array

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

Let's Go Rolling!

dp, sortings

Karen and Supermarket

brute force, dp, trees

Ezzat and Grid

data structures, dp, greedy

Sum Over Zero

data structures, dfs and similar, dp

Colorings and Dominoes

combinatorics, dp, greedy, math

Koa and the Beach (Hard Version)

constructive algorithms, dp, greedy, implementation

Kindergarten

data structures, dp, greedy

Perfect Groups

dp, math, number theory

Anthem of Berland

dp, strings

Divisible by Twenty-Five

brute force, dfs and similar, dp

Messages

brute force, dp, greedy, probabilities, sortings

Remove Directed Edges

dfs and similar, dp, graphs

Monster Invaders

dp, greedy, implementation

Segment Sum

bitmasks, combinatorics, dp, math

Cunning Gena

bitmasks, dp, greedy, sortings

Yet Another Substring Reverse

bitmasks, dp

Super M

dfs and similar, dp, graphs, trees

You Are Given a WASD-string...

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

Learning to Paint

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

Sum over all Substrings (Hard Version)

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

Counting Shortcuts

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

Wi-Fi

data structures, dp, greedy

Driving Test

data structures, dp, greedy

Counting Binary Strings

combinatorics, dp, math

Red-Black Number

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

And Reachability

bitmasks, dp

Neko and Aki's Prank

dp, greedy, trees

Lunar New Year and Red Envelopes

data structures, dp

Berzerk

dfs and similar, dp, games

Connected Components

data structures, dfs and similar, dp, dsu

Work Group

dfs and similar, dp, graphs, strings, trees

Asterism (Hard Version)

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

Power Board

brute force, dp, math, number theory

The World Is Just a Programming Task (Easy Version)

brute force, dp, greedy, implementation

Cipher

combinatorics, dp

Jeff and Furik

combinatorics, dp, probabilities

Logo Turtle

dp

Candy Party (Hard Version)

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

Minimal Coverage

dp

Find a Number

dp, graphs, number theory, shortest paths

Running Track

dp, greedy, strings, trees

Hot Start Up (hard version)

data structures, dp

Bananas in a Microwave

dfs and similar, dp, graphs, implementation

New Year and Arbitrary Arrangement

dp, math, probabilities

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

Multicolored Marbles

dp, math

Rearrange Brackets

brute force, dp, greedy, sortings, strings

Symmetric and Transitive

combinatorics, dp, math

Not Escaping

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

Count Seconds

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

Mocha and Stars

combinatorics, dp, fft, math, number theory

Product Sum

data structures, dp, geometry

Another MEX Problem

bitmasks, brute force, dp, shortest paths

Rain and Umbrellas

dp

File List

dp, greedy, implementation

Divan and Kostomuksha (hard version)

dp, number theory

Skills

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

Make It One

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

Correcting Mistakes

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

Pawn

dp

Ball Sorting

data structures, dp, sortings

Fruit Sequences

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

Turtle Mission: Robot and the Earthquake

dfs and similar, dp, graphs, shortest paths

Treasure Hunting

binary search, dp, greedy, implementation

Vasya and Binary String

dp

Ralph and Mushrooms

dp, graphs

An overnight dance in discotheque

dfs and similar, dp, geometry, greedy, trees

Bear and Tower of Cubes

binary search, dp, greedy

Random Task

binary search, bitmasks, combinatorics, dp, math

Towers

dp, greedy, two pointers

Roma and Poker

dp, graphs

Bits And Pieces

bitmasks, dfs and similar, dp, greedy

Voting (Easy Version)

data structures, dp, greedy

Wizards and Huge Prize

dp, math, probabilities