Increasing Frequency

binary search, dp, greedy

Cut and Stick

binary search, data structures, greedy, implementation, sortings

Cut

binary search, data structures, dp, graphs, number theory, two pointers

R2D2 and Droid Army

binary search, data structures, two pointers

Balanced Removals (Harder)

binary search, constructive algorithms, divide and conquer, greedy, implementation, sortings

Energy exchange

binary search

Searchlights

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

Equal XOR Segments

binary search, data structures

New Year Snowmen

binary search, data structures, greedy

Pairs

binary search, constructive algorithms, greedy, two pointers

Restore the Permutation

binary search, constructive algorithms, data structures, greedy, math

Binary Median

binary search, bitmasks, brute force, constructive algorithms

Guess The String

binary search, constructive algorithms, interactive

Empty Graph

binary search, constructive algorithms, data structures, greedy, shortest paths

Inconvenient Pairs

binary search, data structures, implementation, sortings, two pointers

Blocking Elements

binary search, data structures, dp, implementation, two pointers

Save Energy!

binary search, implementation, math

The Strongest Build

binary search, brute force, data structures, dfs and similar, graphs, greedy, hashing, implementation

Gift Set

binary search, greedy, math, ternary search

Success Rate

binary search, math

Alyona and a tree

binary search, data structures, dfs and similar, graphs, trees

K-beautiful Strings

binary search, brute force, constructive algorithms, greedy, strings

Firecrackers

binary search, sortings

Planets

binary search, data structures, graphs, shortest paths

New Year Concert

binary search, data structures, greedy, math, number theory, two pointers

Too Easy Problems

binary search, brute force, data structures, greedy, sortings

Yet Another Problem

binary search, bitmasks, constructive algorithms, data structures

Teleporters (Hard Version)

binary search, greedy, sortings

Monitor

binary search, number theory

Hacker, pack your bags!

binary search, greedy, implementation, sortings

The Bakery

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

Frets On Fire

binary search, sortings

Vasya and Robot

binary search, two pointers

Convenient For Everybody

binary search, two pointers

Toss a Coin to Your Graph...

binary search, dfs and similar, dp, graphs

Binary Subsequence Rotation

binary search, constructive algorithms, data structures, greedy

One-Dimensional Battle Ships

binary search, data structures, greedy, sortings

Bit Guessing Game

binary search, bitmasks, constructive algorithms, interactive

Preparing for Merge Sort

binary search, data structures

Dress'em in Vests!

binary search, brute force, greedy, two pointers

Lonely Numbers

binary search, math, number theory, two pointers

Long Jumps

binary search, greedy, implementation

For Gamers. By Gamers.

binary search, brute force, greedy, math, sortings

Restorer Distance

binary search, greedy, math, sortings, ternary search

Black Cells

binary search, brute force, greedy, math

Quiz

binary search, greedy, math, matrices, number theory

Restore Permutation

binary search, data structures, greedy, implementation

Maximum Subrectangle

binary search, implementation, two pointers

Nearest Excluded Points

binary search, data structures, dfs and similar, graphs, shortest paths

Serval and Rooted Tree

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

Minimizing Difference

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

Pair of Numbers

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

Reset K Edges

binary search, data structures, dfs and similar, graphs, greedy, trees

Dances (Hard Version)

binary search, greedy, sortings, two pointers

Mike and Chocolate Thieves

binary search, combinatorics, math

Cloud of Hashtags

binary search, greedy, implementation, strings

Irreducible Anagrams

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

Asterism (Easy Version)

binary search, brute force, combinatorics, math, number theory, sortings

Very Suspicious

binary search, brute force, geometry, greedy, implementation, math

Erase and Extend (Hard Version)

binary search, data structures, greedy, hashing, string suffix structures, strings, two pointers

Little Elephant and Cards

binary search, data structures

Rocket

binary search, interactive

Three-level Laser

binary search, greedy, two pointers

The Doctor Meets Vader (Easy)

binary search, sortings

Array Repetition

binary search, brute force, dsu, implementation, math

Maximum And Queries (easy version)

binary search, bitmasks, brute force, greedy

Permutation Graph

binary search, constructive algorithms, data structures, divide and conquer, greedy, shortest paths

1D Sokoban

binary search, dp, greedy, implementation, two pointers

Ones and Twos

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

Rudolf and Imbalance

binary search, greedy, sortings, two pointers

Controllers

binary search, math

Anton and Making Potions

binary search, dp, greedy, two pointers

Boxes Packing

binary search, implementation

Rating Compression

binary search, data structures, greedy, implementation, two pointers

Exams

binary search, greedy, sortings

Choosing flowers

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

Old Floppy Drive

binary search, data structures, math

Permutation Restoration

binary search, data structures, greedy, math, sortings, two pointers

Max GEQ Sum

binary search, constructive algorithms, data structures, divide and conquer, implementation, two pointers

Range and Partition

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

Array Stabilization (GCD version)

binary search, brute force, data structures, divide and conquer, number theory, two pointers

Little Elephant and Interval

binary search, combinatorics, dp

Perform Easily

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

Primes on Interval

binary search, number theory, two pointers

Sheikh (Easy version)

binary search, bitmasks, greedy, two pointers

Garage

binary search, geometry, math

Salary Changing

binary search, greedy, sortings

Bear and Blocks

binary search, data structures, dp, math

AB-string

binary search, combinatorics, dp, strings

Magic Will Save the World

binary search, bitmasks, brute force, dp

Molly's Chemicals

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

Tourist's Notes

binary search, brute force, greedy, implementation, math

Moscow Gorillas

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

Not So Simple Polygon Embedding

binary search, brute force, geometry, math

Devu and his Brother

binary search, sortings, ternary search, two pointers

Glider

binary search, data structures, two pointers

Multiple Testcases

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

River Locks

binary search, dp, greedy, math

Bandit in a City

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

Match Points

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