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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

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ArraysTwo Pointers

AMD

Accenture

Accolite

Adobe

Airbnb

Airbus SE

Akamai

Altimetrik

Amazon

American Express

Anduril

Apple

Atlassian

Autodesk

Barclays

BlackRock

Bloomberg

ByteDance

Capgemini

Capital One

Cisco

Citadel

Citigroup

Cognizant

Comcast

Criteo

DE Shaw

Databricks

Delhivery

Dell

Deloitte

Deutsche Bank

DevRev

Devsinc

DoorDash

Dropbox

EPAM Systems

EY

Epic Systems

Expedia

Flipkart

Garmin

Goldman Sachs

Google

Grab

HCL

HashedIn

Honeywell

Huawei

IBM

Infosys

Intel

Intuit

Jane Street

Juspay

KLA

LinkedIn

Lowe's

Mastercard

Meta

Microsoft

Microstrategy

MindTree

MongoDB

Morgan Stanley

NetApp

Nvidia

Ola Cabs

Optum

Oracle

Ozon

Palo Alto Networks

PayPal

PhonePe

Publicis Sapient

Pwc

Qualcomm

Roblox

SAP

Salesforce

Samsung

ServiceNow

Snowflake

Sony

Splunk

Spotify

Synopsys

Tech Mahindra

Tekion

Tesla

ThoughtWorks

Tiger Analytics

TikTok

Tinkoff

Toast

Turing

UKG

Uber

VK

Virtusa

Visa

Walmart Labs

Warnermedia

Western Digital

Wipro

Wix

Yahoo

Yandex

Yelp

Zoho

ciena

eBay

jio

persistent systems

tcs

GFG

DefaultDifficulty (Easy → Hard)Difficulty (Hard → Easy)Title (A → Z)Title (Z → A)

Easy (1)

Two Sum (Leetcode 1)

Two Pointers, Arrays

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