Subtle Substring Subtraction

games, greedy, strings

PermutationForces

data structures, greedy

Zigu Zagu

constructive algorithms, data structures, greedy

Array Shuffling

constructive algorithms, graphs, greedy

notepad.exe

binary search, constructive algorithms, greedy, interactive

Cyclic Rotation

constructive algorithms, greedy, implementation, two pointers

Unequal Array

constructive algorithms, greedy, implementation

Insert a Progression

brute force, constructive algorithms, greedy

Dolce Vita

binary search, brute force, greedy, math

Very Suspicious

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

Prof. Slim

greedy, implementation, sortings

Maximal AND

bitmasks, greedy, math

Eating Candies

binary search, data structures, greedy, two pointers

Odd/Even Increments

greedy, greedy, implementation, math

Social Distance

greedy, math, sortings

Make it Increasing

brute force, greedy, math

Even Split

binary search, constructive algorithms, greedy, math

Deletive Editing

greedy

MinimizOR

bitmasks, brute force, data structures, divide and conquer, greedy, implementation, two pointers

Tree Infection

binary search, greedy, sortings, trees

Array Cloning Technique

constructive algorithms, greedy, sortings

Gastronomic Event

dp, greedy, trees

Evolution of Weasels

greedy, implementation, strings

Toys

greedy, strings

Teleporters

binary search, greedy

Progressions Covering

data structures, greedy

Water the Trees

binary search, greedy, math

Getting Zero

bitmasks, brute force, dfs and similar, dp, graphs, greedy, shortest paths

Array Balancing

greedy, math

Matrix and Shifts

brute force, constructive algorithms, greedy, implementation

Get an Even String

dp, greedy, strings

Vasya and Coins

greedy, math

Reverse Sort Sum

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

Line Empire

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

Bit Flipping

bitmasks, constructive algorithms, greedy, strings

Red Versus Blue

constructive algorithms, greedy, implementation, math

Juju and Binary String

brute force, constructive algorithms, greedy, math

For Gamers. By Gamers.

binary search, brute force, greedy, math, sortings

Bracket Sequence Deletion

greedy, implementation

XY Sequence

greedy

Parametric MST

binary search, constructive algorithms, graphs, greedy, math, sortings

Subtract Operation

data structures, greedy, math, two pointers

Snowy Mountain

data structures, dfs and similar, graphs, greedy, shortest paths, trees

Minimal String Xoration

bitmasks, data structures, divide and conquer, greedy, hashing, sortings, strings

Alice and the Cake

data structures, greedy, implementation, sortings

Maximum Cake Tastiness

brute force, greedy, implementation, sortings

Sum of Matchings

brute force, combinatorics, constructive algorithms, dfs and similar, graph matchings, greedy, math

Prove Him Wrong

constructive algorithms, greedy

Vitaly and Advanced Useless Algorithms

dp, greedy, implementation

Rescheduling the Exam

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

Weight of the System of Nested Segments

greedy, hashing, implementation, sortings

Game of Ball Passing

greedy, implementation

Madoka and Laziness

dp, greedy

Madoka and the Sixth-graders

data structures, dfs and similar, greedy

Madoka and Childish Pranks

constructive algorithms, greedy

Playing Around the Table

constructive algorithms, greedy, implementation

Quality vs Quantity

brute force, constructive algorithms, greedy, sortings, two pointers

Increase Subarray Sums

brute force, dp, greedy, implementation

Power Walking

greedy

Two Arrays

bitmasks, brute force, combinatorics, greedy, hashing, math, two pointers

Anonymity Is Important

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

Great Sequence

brute force, greedy, sortings

Two Posters

brute force, data structures, greedy, two pointers

Big Brush

constructive algorithms, data structures, greedy, implementation

Reverse

constructive algorithms, greedy, math

Minimize Inversions Number

data structures, greedy, math, sortings

Birthday

constructive algorithms, greedy, math

Towers

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

Yet Another Minimization Problem

dp, greedy, math

Andrew and Stones

greedy, implementation

MEX and Array

brute force, dp, greedy, math

Closest Pair

data structures, greedy

Cars

2-sat, constructive algorithms, dfs and similar, dsu, graphs, greedy, sortings

Differential Sorting

constructive algorithms, greedy

Avoid Local Maximums

greedy

Min Or Sum

bitmasks, greedy

Reverse and Concatenate

greedy, strings

Spanning Tree Queries

binary search, data structures, dfs and similar, dsu, graphs, greedy, math, sortings, trees

Make Them Equal

dp, greedy

Minority

greedy

New Year Concert

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

Fun with Even Subarrays

dp, greedy

Min Max Swap

greedy

Flipping Range

constructive algorithms, dp, greedy, number theory

Paint the Middle

dp, greedy, sortings, two pointers

Range and Partition

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

GCD Arrays

greedy, math, number theory

Download More RAM

brute force, greedy, sortings

Grid Xor

constructive algorithms, greedy, implementation, interactive, math

Peculiar Movie Preferences

greedy, strings

Meximum Array

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

Not Splitting

geometry, graphs, greedy, implementation, shortest paths

Not Sitting

games, greedy, sortings

Black and White Tree

dfs and similar, greedy, trees

Martial Arts Tournament

binary search, brute force, greedy, math

Monsters And Spells

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

Minor Reduction

greedy, strings

Elementary Particles

brute force, greedy, sortings

Ancient Civilization

bitmasks, greedy, math

MinOr Tree

bitmasks, dfs and similar, dsu, graphs, greedy