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Aryaman Verma

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__lt__ dunder and cmp_to_key (tricks)
2-Way-Partitioning
Binary Search on Odd and Even range
Cyclic-sort-and-placement
Factorials and Inverse Factorials Calc.
Heap-Lazy-Deletion-(Decrease-Key)
KMP-string-matching
Merging-two-sorted-arrays

Notes

Extras
🌟 Overview
3-Way Partitioning (Dutch National Flag)
Arrays as Functional Graphs
Basic Array Problems
Basic Problems Using Simple Recursion
Binary Exponentiation with modulo
Binary Search on Answer ( Predicate Search) - 5⭐
Bucket Sort
Complementary Counting
Coordinate Compression
Cycle Sort (with duplicates)
Difference Array & Range Update Problems (FAANG Variations)
DSU - Disjoint Set Union
Fibonacci Numbers
Floyd's Cycle Detection & Duplicate Finding Algorithm (Tortoise and Hare)
Follow-Up questions on Two Odd Occurring XOR pattern
Further Optimized Prime Factorization (div. by 2 & 3)
Gray Code (1-bit difference)
Heaps Concept (Sorting , Operations etc.)
How to convert to 'Tail Recursive Procedures'
Huffman Coding
Intervals & Ranges Pattern (Sorting)
Intuition behind Josephus Problem
K-way Merge
Lookup Table Solution for counting set bits
Matrices Everywhere !!!
Maximum Subarray — Important Interview Variations
Merge Sort (Divide & Conquer) Strategies
Modulo Formulas
Monotonic Deque
Python Memory Model for DSA & Interviews
QuickSelect
Radix Sort
Row or Col compression in matrix
Sliding window variations
Strings Pattern Matching
Subarray with Given Sum — Important Interview Variations (Solutions)
Time complexity for GCD
Time complexity for Prime Factorization
Time Complexity for Sieve of Eratosthenes
Trie — Implementation
What makes a problem DP
XOR properties

Write-Ups

Liftoff

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🔒 Liftoff

BacktrackingMathsMatrixRecursion

Accenture

Adobe

Amazon

Bloomberg

Deutsche Bank

Goldman Sachs

Google

Huawei

IBM

Infosys

Mastercard

Meta

Microsoft

Oracle

Snowflake

TikTok

Walmart Labs

Zenefits

Zoho

tcs

DFS

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Hard (1)

N-Queens (Leetcode 51 & 52)

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