GCD-sequence

greedy, implementation, math, number theory

Ingenuity-2

constructive algorithms, greedy, implementation

Beautiful Triple Pairs

combinatorics, data structures

Game on Tree (Easy)

games

Reverse Card (Easy Version)

brute force, math, number theory

Permutation Counting

binary search, greedy, implementation, math, sortings

Everything Nim

games, greedy, math, sortings

Clock in the Pool

*special problem, math

Inaccurate Subsequence Search

data structures, two pointers

Ticket Hoarding

greedy, math, sortings

Card Game

greedy, implementation

LR-remainders

brute force, data structures, implementation, math, two pointers

Anna and the Valentine's Day Gift

games, greedy, math, sortings

Sasha and the Casino

binary search, brute force, constructive algorithms, games, greedy, math

Klever Permutation

constructive algorithms, math, two pointers

Find B

constructive algorithms, greedy

Grouping Increases

data structures, dp, greedy

XOR-distance

bitmasks, greedy, implementation, math

Game with Marbles (Hard Version)

games, greedy, sortings

Game with Marbles (Easy Version)

brute force, games, greedy, sortings

Heavy Intervals

constructive algorithms, data structures, dsu, greedy, math, sortings

Jumping Through Segments

binary search, constructive algorithms

Largest Subsequence

greedy, strings

Array Game

binary search, brute force, data structures, sortings, two pointers

Theofanis' Nightmare

constructive algorithms, greedy

Add, Divide and Floor

constructive algorithms, greedy, math

Matching Arrays

binary search, constructive algorithms, greedy, sortings

Torn Lucky Ticket

brute force, dp, hashing, implementation, math

Anonymous Informant

brute force, dfs and similar, graphs, implementation

Dances (Easy version)

binary search, greedy, two pointers

You Are So Beautiful

data structures

Iva & Pav

binary search, bitmasks, data structures, greedy

Jellyfish and Green Apple

bitmasks, greedy, math, number theory

Battling with Numbers

combinatorics, math, number theory

Two-Colored Dominoes

constructive algorithms, greedy

Game on Permutation

data structures, dp, games, greedy

Dual (Easy Version)

constructive algorithms, math

Vampiric Powers, anyone?

bitmasks, brute force, dp, greedy

Strong Password

binary search, dp, greedy, strings

Row Major

constructive algorithms, greedy, math, number theory, strings

Wooden Toy Festival

binary search, greedy, sortings

No Prime Differences

constructive algorithms, math, number theory

Bracket Coloring

constructive algorithms, greedy

Flipper

brute force, constructive algorithms, greedy

Copil Copac Draws Trees

dfs and similar, dp, graphs, trees

LuoTianyi and the Show

greedy, implementation

Place for a Selfie

binary search, data structures, geometry, math

Unforgivable Curse (easy version)

brute force, constructive algorithms, dsu, graphs, greedy, strings

Vlad and a Pair of Numbers

bitmasks, constructive algorithms

Easy Assembly

greedy, sortings

Absolute Sorting

constructive algorithms, math

Hossam and Friends

binary search, constructive algorithms, dp, two pointers

Копирование файлов II

*special problem, binary search, brute force, math

Doremy's City Construction

graphs, greedy

Binary Strings are Fun

combinatorics, math

Set Construction

constructive algorithms, dfs and similar, graphs, greedy

Make It Round

brute force, number theory

Almost All Multiples

greedy, number theory

Complementary XOR

constructive algorithms, implementation

Number Game

binary search, data structures, games, greedy, implementation

Diverse Substrings

brute force, implementation, strings

Bricks and Bags

constructive algorithms, games, greedy, sortings

Phase Shift

dfs and similar, dsu, graphs, greedy, implementation, strings

Zero-One (Easy Version)

constructive algorithms, greedy, math

Digital Logarithm

data structures, greedy, sortings

Min-Max Array Transformation

binary search, greedy, two pointers

Fighting Tournament

binary search, data structures, implementation, two pointers

Add Modulo 10

brute force, math, number theory

Qpwoeirut And The City

dp, flows, greedy, implementation

Mark and His Unfinished Essay

brute force, implementation

Schedule Management

binary search, greedy, implementation, two pointers

awoo's Favorite Problem

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

Fishingprince Plays With Array

constructive algorithms, greedy, implementation, math

2^Sort

data structures, dp, sortings, two pointers

Sum of Substrings

brute force, constructive algorithms, greedy, math, strings

Column Swapping

brute force, constructive algorithms, greedy, implementation, sortings

LIS or Reverse LIS?

constructive algorithms, greedy, implementation, math

Rooks Defenders

data structures, implementation

Maximum Crossings (Easy Version)

brute force

Where is the Pizza?

data structures, dfs and similar, dsu, graphs, implementation, math

Alice and the Cake

data structures, greedy, implementation, sortings

Weird Sum

combinatorics, data structures, geometry, math, matrices, sortings

Increase Subarray Sums

brute force, dp, greedy, implementation

Fortune Telling

bitmasks, math

Meximum Array

binary search, constructive algorithms, greedy, implementation, math, two pointers

Not Assigning

constructive algorithms, dfs and similar, number theory, trees

Palindromes Coloring

binary search, greedy, sortings, strings

Complex Market Analysis

binary search, dp, implementation, number theory, schedules, two pointers

Banknotes

greedy, number theory

Dominant Character

brute force, greedy, implementation, strings

Robot Factory

bitmasks, dfs and similar

Productive Meeting

constructive algorithms, graphs, greedy

Swaps

greedy, math, sortings

Mocha and Diana (Easy Version)

brute force, constructive algorithms, dsu, graphs, greedy, trees

Wonderful Coloring - 2

binary search, constructive algorithms, data structures, greedy

Web of Lies

brute force, graphs, greedy

Great Graphs

constructive algorithms, graphs, greedy, shortest paths, sortings

Unstable String

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

I Hate 1111

dp, math, number theory

Arranging The Sheep

greedy, math