Keep the Average High

dp, greedy, math

String Coloring (hard version)

data structures, dp

Kalila and Dimna in the Logging Industry

dp, geometry

Python Indentation

dp

GameGame

bitmasks, constructive algorithms, dp, games, greedy, math

Frog Traveler

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

Sonya and Problem Wihtout a Legend

dp, sortings

Anfisa the Monkey

dp

A Twisty Movement

dp

Round Subset

dp, math

Serval and Rooted Tree

binary search, dfs and similar, dp, greedy, trees

Pavel and Triangles

brute force, dp, fft, greedy, ternary search

Bear and Compressing

brute force, dfs and similar, dp, strings

Zero Tree

dfs and similar, dp, greedy, trees

PermuTree (easy version)

dfs and similar, dp, trees

Colored Balls

combinatorics, dp, math, sortings

Riding in a Lift

combinatorics, dp

505

bitmasks, brute force, constructive algorithms, dp, greedy, implementation

Treasure Island

dfs and similar, dp, flows, hashing

Ksyusha and Chinchilla

constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees

Maximum Submatrix 2

data structures, dp, implementation, sortings

Longtail Hedgehog

dp, graphs

The Values You Can Make

dp

Generate a String

dfs and similar, dp

Tree XOR

bitmasks, dfs and similar, dp, greedy, trees

Omsk Metro (simple version)

data structures, dfs and similar, dp, graphs, greedy, math, trees

Chip Move

brute force, dp, math

Burenka and Traditions (hard version)

data structures, dp, greedy

Clear the Multiset

data structures, divide and conquer, dp, greedy

Vlad and Unfinished Business

dfs and similar, dp, greedy, trees

Sagheer, the Hausmeister

bitmasks, brute force, dp

Number of Subsequences

combinatorics, dp, strings

Madoka and the Best School in Russia

constructive algorithms, dp, math, number theory

Necklace Assembly

brute force, dfs and similar, dp, graphs, greedy, number theory

Square Subsets

bitmasks, combinatorics, dp, math

Police Stations

constructive algorithms, dfs and similar, dp, graphs, shortest paths, trees

Arpa's weak amphitheater and Mehrdad's valuable Hoses

dfs and similar, dp, dsu

Civilization

dfs and similar, dp, dsu, ternary search, trees

Bad Luck Island

dp, probabilities

Fox And Jumping

bitmasks, brute force, dp, math

The Fair Nut and the Best Path

data structures, dp, trees

K Balanced Teams

dp, sortings, two pointers

1D Sokoban

binary search, dp, greedy, implementation, two pointers

Yet Another Subarray Problem

dp, greedy, math

XOR-pyramid

dp

Korney Korneevich and XOR (easy version)

bitmasks, dp, greedy

Pashmak and Graph

dp, sortings

Pie Rules

dp, games

Counting Arrays

combinatorics, dp, math, number theory

Anton and Making Potions

binary search, dp, greedy, two pointers

Omkar and Circle

brute force, dp, games, greedy

Appleman and Tree

dfs and similar, dp, trees

Weather

dp, implementation

Three Paths on a Tree

dfs and similar, dp, greedy, trees

Permutation Game

brute force, dp, games

Vanya and Scales

brute force, dp, greedy, math, meet-in-the-middle, number theory

Up the Strip (simplified version)

brute force, data structures, dp, math, number theory

Magic Numbers

dp

Choosing flowers

binary search, brute force, data structures, dfs and similar, dp, greedy, sortings, two pointers

Did you mean...

dp, greedy, implementation

Stars Drawing (Easy Edition)

brute force, dp, greedy

Medium Design

brute force, data structures, dp, greedy, sortings

The Number of Pairs

dp, math, number theory

The Hard Work of Paparazzi

dp

Red-Green Towers

dp

Burenka and Traditions (easy version)

dp, greedy

Array Shrinking

dp, greedy

Perform Easily

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

Little Elephant and Interval

binary search, combinatorics, dp

Gardening Friends

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

Mike and gcd problem

dp, greedy, number theory

Domino for Young

dp, greedy, math

Decorate Apple Tree

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

Journey

dp, graphs

A Lot of Games

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

Bear and Blocks

binary search, data structures, dp, math

Magic Will Save the World

binary search, bitmasks, brute force, dp

Buns

dp

Xor-Subsequence (easy version)

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

AB-string

binary search, combinatorics, dp, strings

Moscow Gorillas

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

Book of Evil

dfs and similar, divide and conquer, dp, trees

Dasha and Password

brute force, dp, implementation

River Locks

binary search, dp, greedy, math

Zero Remainder Sum

dp

Gargari and Permutations

dfs and similar, dp, graphs, implementation

The Great Julya Calendar

dp

Unfair Game

dp, games, greedy, math, schedules

Education

brute force, dp, greedy, implementation

Queries for Number of Palindromes

dp, hashing, strings

Infinite Set

bitmasks, dp, math, matrices, number theory, strings

Slime Escape

data structures, dp, greedy, two pointers

Minimum Maximum Distance

dfs and similar, dp, graphs, shortest paths, trees

A Wide, Wide Graph

dfs and similar, dp, graphs, greedy, trees

Minimizing the Sum

dp, implementation

Mr. Kitayuta, the Treasure Hunter

dfs and similar, dp, two pointers

Greenhouse Effect

dp

Gerald and Giant Chess

combinatorics, dp, math, number theory

Skyscrapers (hard version)

data structures, dp, greedy

Two Hundred Twenty One (easy version)

data structures, dp, math