Monoblock

combinatorics, data structures, implementation, math

Build a Tree and That Is It

constructive algorithms, implementation, trees

Remove Prefix

data structures, greedy, implementation

Everyone Loves to Sleep

implementation, math

Traveling Salesman Problem

geometry, greedy, implementation

Wonderful Permutation

greedy, implementation

Rain

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

Recover an RBS

constructive algorithms, greedy, implementation, strings

Also Try Minecraft

data structures, dp, implementation

Three Doors

brute force, greedy, implementation, math

Difference Array

brute force, data structures, implementation, sortings

Doremy's IQ

binary search, constructive algorithms, greedy, implementation

Qpwoeirut And The City

dp, flows, greedy, implementation

Mark and His Unfinished Essay

brute force, implementation

Mark the Dust Sweeper

constructive algorithms, greedy, implementation

Count Seconds

brute force, constructive algorithms, dp, graphs, implementation, math

Magical Array

constructive algorithms, hashing, implementation, math

Virus

greedy, implementation, sortings

Luke is a Foodie

brute force, greedy, implementation

Mirror Grid

implementation

Cypher

brute force, implementation, strings

ICPC Balloons

data structures, implementation

YES or YES?

brute force, implementation, strings

Points

combinatorics, data structures, implementation, math, matrices

Schedule Management

binary search, greedy, implementation, two pointers

Grass Field

implementation

Palindromic Numbers

constructive algorithms, implementation, math

Equal Reversal

constructive algorithms, graphs, implementation, math

Rising Sand

constructive algorithms, greedy, implementation

Too Many Constraints

2-sat, constructive algorithms, graphs, implementation

Coloring

brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math

awoo's Favorite Problem

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

Parkway Walk

greedy, implementation

Maximum Product?

brute force, combinatorics, dp, greedy, implementation, math, two pointers

Fishingprince Plays With Array

constructive algorithms, greedy, implementation, math

Creep

greedy, implementation

Binary Deque

binary search, implementation, two pointers

The Clock

brute force, implementation

Where's the Bishop?

implementation

Marathon

implementation

Max GEQ Sum

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

Shoe Shuffling

constructive algorithms, greedy, implementation, two pointers

Black and White Stripe

implementation, two pointers

Restoring the Duration of Tasks

data structures, greedy, implementation

Array Decrements

greedy, implementation

Lex String

brute force, greedy, implementation, sortings, two pointers

Cute number

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

Linguistics

greedy, implementation, sortings, strings

Column Swapping

brute force, constructive algorithms, greedy, implementation, sortings

Circular Spanning Tree

constructive algorithms, implementation, trees

LIS or Reverse LIS?

constructive algorithms, greedy, implementation, math

Double Sort

implementation, sortings

Card Trick

implementation, math

Robots

implementation

Rooks Defenders

data structures, implementation

Stone Age Problem

data structures, implementation

Tokitsukaze and Good 01-String (hard version)

dp, greedy, implementation

Tokitsukaze and Good 01-String (easy version)

implementation

Tokitsukaze and All Zero Sequence

implementation

Tokitsukaze and Meeting

data structures, implementation, math

Longest Strike

data structures, greedy, implementation, sortings, two pointers

X-Sum

brute force, greedy, implementation

Most Similar Words

brute force, greedy, implementation, implementation, math, strings

Lucky?

implementation

Vertical Paths

graphs, implementation, trees

Detective Task

implementation

Make It Increasing

greedy, implementation

Desktop Rearrangement

data structures, greedy, implementation

A-B-C Sort

constructive algorithms, implementation, sortings

Infinite Replacement

combinatorics, implementation, strings

Cyclic Rotation

constructive algorithms, greedy, implementation, two pointers

Unequal Array

constructive algorithms, greedy, implementation

I love AAAB

constructive algorithms, implementation

Log Chopping

games, implementation, math

String Building

implementation

Very Suspicious

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

Where is the Pizza?

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

Dorms War

brute force, implementation, strings

Prof. Slim

greedy, implementation, sortings

Fall Down

dfs and similar, implementation

Colorful Stamp

implementation

Odd/Even Increments

greedy, greedy, implementation, math

Triple

implementation, sortings

Division?

implementation

Direction Change

implementation, math

Yin Yang

implementation

Fancy Stack

combinatorics, dp, implementation

MinimizOR

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

Are You Safe?

*special problem, implementation

Pōja Verdon

*special problem, implementation, math

Mike's Sequence

*special problem, divide and conquer, implementation, math

Circular Maze

brute force, dfs and similar, graphs, implementation

Ice Cream Shop

brute force, implementation, sortings

Antennas

data structures, dfs and similar, graphs, graphs, implementation, implementation, shortest paths, shortest paths

Evolution of Weasels

greedy, implementation, strings

Organizing SWERC

brute force, implementation

Promising String (hard version)

data structures, implementation, math, strings

Promising String (easy version)

brute force, implementation, math, strings

Matrix and Shifts

brute force, constructive algorithms, greedy, implementation

Maximum Product Strikes Back

brute force, implementation, math, two pointers