Shop Game

data structures, greedy, math, sortings

Spiders

dp, greedy, trees

DZY Loves Modification

brute force, data structures, greedy

Tree Reconstruction

constructive algorithms, data structures, graphs, greedy

To Go Or Not To Go?

brute force, dfs and similar, graphs, greedy, implementation, shortest paths

Carrots for Rabbits

binary search, data structures, greedy, math, sortings

MUH and House of Cards

binary search, brute force, greedy, math

Magic, Wizardry and Wonders

constructive algorithms, greedy

Debate

greedy

Social Circles

greedy, math

Portal

brute force, data structures, dp, greedy, implementation

Strange Housing

constructive algorithms, dfs and similar, graph matchings, graphs, greedy

Unlucky Numbers

brute force, dp, greedy, implementation

Pchelyonok and Segments

binary search, data structures, dp, greedy, math

Professor Higashikata

data structures, dsu, greedy, implementation, strings

Alarm Clock

greedy

N Problems During K Days

constructive algorithms, greedy, math

01 Tree

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

Sea Battle

constructive algorithms, greedy, math

A Game with Traps

binary search, dp, greedy, sortings

Moving Chips

bitmasks, dp, greedy

Water Balance

data structures, geometry, greedy

Escape The Maze (hard version)

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

Range Sorting (Easy Version)

binary search, dp, dsu, greedy, trees, two pointers

Matchmaker

*special problem, greedy, sortings

Riverside Curio

data structures, dp, greedy

Case of Fugitive

data structures, greedy, sortings

The Union of k-Segments

greedy, sortings

Challenges in school №41

brute force, constructive algorithms, games, graphs, greedy, implementation, sortings

Divisibility by 25

brute force, greedy

Tavas and Karafs

binary search, greedy, math

Homework

greedy

Programming Competition

dfs and similar, dp, graph matchings, greedy, trees

All Possible Digits

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

Posterized

games, greedy

Sum over all Substrings (Easy Version)

brute force, dp, greedy, strings

Same Sum Blocks (Easy)

greedy

Nastya Is Buying Lunch

greedy

Renting Bikes

binary search, greedy

Toy Train (Simplified)

brute force, greedy

Lonely Mountain Dungeons

brute force, data structures, greedy, math, ternary search

Tavas and Malekas

greedy, hashing, string suffix structures, strings

Martial Arts Tournament

binary search, brute force, greedy, math

Array Partition

binary search, data structures, greedy, two pointers

Koa and the Beach (Easy Version)

brute force, dp, greedy

Road to Cinema

binary search, greedy, sortings

Microcycle

data structures, dfs and similar, dsu, graphs, greedy, implementation, sortings, trees

Error Correct System

greedy

Subsequence Counting

bitmasks, constructive algorithms, greedy, implementation

What is for dinner?

greedy, implementation

Jzzhu and Chocolate

greedy, math

Hanoi Factory

brute force, data structures, dp, greedy, sortings

Set To Max (Hard Version)

constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings

Cleaning

data structures, dp, greedy, math

Reverse Sort Sum

constructive algorithms, data structures, greedy, implementation, math, two pointers

Yet Another Division Into Teams

dp, greedy, sortings

Dima and Hares

dp, greedy

Maximum Subarray

data structures, dp, greedy, two pointers

Painting the Array II

constructive algorithms, data structures, dp, greedy, implementation

Road Reform

dsu, graphs, greedy

Tenzing and His Animal Friends

constructive algorithms, graphs, greedy

Sequence Sorting

dp, greedy, two pointers

Secrets

greedy

Amr and Chemistry

brute force, graphs, greedy, math, shortest paths

Circus

brute force, greedy, math, strings

Arthur and Table

brute force, data structures, dp, greedy, math, sortings

String Reconstruction

data structures, greedy, sortings, strings

Dasha and Very Difficult Problem

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

Two Sets

2-sat, dfs and similar, dsu, graph matchings, greedy

The Winter Hike

constructive algorithms, greedy, math

Batch Sort

brute force, greedy, implementation, math

Kate and imperfection

greedy, implementation, math, number theory, sortings, two pointers

Bus Game

greedy

Xenia and Spies

brute force, greedy, implementation

Garland

dfs and similar, graphs, greedy, trees

Paper Work

greedy

Hometask

greedy

Zero-One (Hard Version)

dp, greedy

Replace With Product

brute force, greedy, math

Ehab's Last Corollary

constructive algorithms, dfs and similar, graphs, greedy, implementation, trees

Buds Re-hanging

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

Robot in a Hallway

data structures, dp, greedy, implementation, ternary search

Split Plus K

greedy, math, number theory

Rescheduling the Exam

binary search, data structures, greedy, implementation, math, sortings

Maximum Number

*special problem, constructive algorithms, greedy, implementation

Divide The Students

binary search, greedy, math

Segment Intersections

brute force, greedy, implementation, math

Toy Train

brute force, greedy

Company Merging

greedy

Exact Change

brute force, constructive algorithms, greedy

Hexagons

brute force, constructive algorithms, greedy, implementation, math, shortest paths

Big Brush

constructive algorithms, data structures, greedy, implementation

Same Sum Blocks (Hard)

data structures, greedy

Rudolf and CodeVid-23

bitmasks, dp, graphs, greedy, shortest paths

Multithreading

data structures, greedy, implementation

Checkpoints

brute force, constructive algorithms, greedy, math, probabilities

Increasing Frequency

binary search, dp, greedy

Cut and Stick

binary search, data structures, greedy, implementation, sortings

Maximize the Remaining String

brute force, data structures, dp, greedy, strings

Recycling Bottles

dp, geometry, greedy, implementation