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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

CrowdStrike

2 problems asked at CrowdStrike.

Showing 2 of 2

🔒 CrowdStrike

Prefix and Suffix ArraysStackStringsTwo Pointers

Accenture

Accolite

Adobe

Agoda

Airbnb

Altimetrik

Amazon

Anduril

Apple

Autodesk

Bank of America

Barclays

BitGo

BlackRock

Bloomberg

ByteDance

Cadence

Capgemini

Capital One

Chewy

Cisco

Citadel

Cognizant

Comcast

Criteo

DE Shaw

Dell

Deloitte

Docusign

EPAM Systems

Epic Systems

Expedia

Facebook

Flipkart

FreshWorks

GoDaddy

Goldman Sachs

Google

Grab

Grammarly

HCL

HP

HashedIn

Hive

Huawei

IBM

IMC

InMobi

Infosys

Intel

Intuit

Jane Street

LinkedIn

Lucid

MakeMyTrip

Mastercard

MathWorks

Media.net

Meta

Microsoft

Millennium

Mindtickle

Moloco

National Instruments

Navi

Nike

Nokia

Nutanix

Nvidia

Odoo

Ola Cabs

OpenAI

Oracle

Ozon

Palo Alto Networks

PayPal

Paytm

PhonePe

Publicis Sapient

Qualcomm

Qualtrics

Rakuten

Roblox

Rokt

Rubrik

SAP

Salesforce

Samsung

Sapient

ServiceNow

Siemens

Sigmoid

Snapchat

Snowflake

Sony

Splunk

Spotify

Sprinklr

Squarepoint Capital

Swiggy

Tekion

Tesla

ThousandEyes

TikTok

Toast

Tripadvisor

Turing

Two Sigma

UBS

USAA

Uber

Urban Company

VK

Vimeo

Virtu Financial

Visa

Walmart Labs

Wells Fargo

Wipro

Wix

X

Yahoo

Yandex

ZS Associates

Zenefits

Zeta

Zoho

Zopsmart

carwale

eBay

opentext

persistent systems

tcs

GFGLIFOMonotonic Stack

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

Easy (1)

Valid Parentheses (Leetcode 20)

Stack, Strings

Hard (1)

Trapping Rain Water (LC 42)

Two Pointers, Prefix and Suffix Arrays, Stack

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