Here are some editorialized solutions to my favourite programming puzzles

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AND
BFS
Bit Manipulation
Bit Mask
Brute Force
C++
Classic
Constructive Algorithm
Counting
DFS
Data Structure
Deduction
Dijkstra's
Disjoint Set Union
Dynamic Programming
Flood Fill
Graph
Greedy
Hash Table
Implementation
Knapsack Problem
LIS
Lowest Common Ancestor
Map
Math
Minima and Maxima
Monotonic Queue
Optimization
Parsing
Permutations
Prefix Sum
Prime Sieve
Priority Queue
Python3
Queue
Recursion
Rust
Set
Simulation
Sorting
Stack
State Machine
String
Tree
Trie
Two Pointers
Weighted Graph
XOR
Cribbage On Steroids
Implementation
Counting
Dynamic Programming
C++
Two Charts Become One
Parsing
Data Structure
Stack
DFS
C++
Sheba's Amoebas
Flood Fill
DFS
C++
Python3
Integer Division
Math
Data Structure
Hash Table
C++
Python3
Exam Manipulation
Bit Mask
Brute Force
Permutations
C++
Python3
Birds on a Wire
Greedy
Math
C++
Python3
A Question of Ingestion
Dynamic Programming
Knapsack Problem
Optimization
Math
C++
Python3
Abridged Reading
Tree
Weighted Graph
DFS
Prefix Sum
Lowest Common Ancestor
C++
467C: George and Job
Knapsack Problem
Dynamic Programming
Prefix Sum
C++
Divisor Counts
Prime Sieve
Math
Brute Force
C++
Python3
1790E: Vlad and a Pair of Numbers
Bit Manipulation
XOR
AND
Deduction
Constructive Algorithm
C++
1790D: Matryoshkas
Data Structure
Map
Sorting
Greedy
C++
1790C: Premutation
Deduction
Brute Force
Permutations
C++
1790B: Taisia and Dice
Implementation
Math
Greedy
C++
1790A: Polycarp and the Day of Pi
Implementation
String
C++
Unique Snowflakes
Data Structure
Set
Queue
Monotonic Queue
C++
Two Sum
Hash Table
Data Structure
Classic
Rust
Longest Common Subsequence
String
Dynamic Programming
Classic
C++
Concatenated Words
Data Structure
Trie
DFS
C++
1760D: Challenging Valleys
Implementation
Two Pointers
Minima and Maxima
C++
Lexicographically Smallest Equivalent Substring
Disjoint Set Union
Hash Table
C++
Cheapest Flights Within K Stops
BFS
Priority Queue
Dijkstra's
Weighted Graph
C++
1779A: Hall of Fame
Greedy
C++
Longest Path With Different Adjacent Characters
Tree
Graph
DFS
C++
Time to Cross a Bridge (2532)
Simulation
Priority Queue
C++
Regular Expression Matching (10)
State Machine
Recursion
C++
Poklon
Greedy
LIS
C++
Python3
Trapping Rain Water (42)
Prefix Sum
Classic
C++
Python3

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