Browse LeetCode problems frequently asked by Reddit. Filter by difficulty and timeframe to focus your interview prep.
Last updated: 20 Feb 2026
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1kosmos
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DJI
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Dream11
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DTCC
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Jane Street
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KPIT
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Machine Zone
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Mastercard
Mathworks
Mcafee
Mcdonalds
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Micro1
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Societe Generale
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Spotify
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Stackadapt
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Starbucks
State Farm
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Syfe
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Ta Digital
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TCS
Tech Mahindra
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Tencent
Teradata
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Texas Instruments
The Trade Desk
Thomson Reuters
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Thousandeyes
Thumbtack
TIAA
Tiger Analytics
TikTok
Tinder
Tinkoff
Toast
Tokopedia
Tomtom
Toptal
Tower Research
Tracxn
Traveloka
Trend Micro
Trexquant
Trilogy
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Triplebyte
Turing
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Twilio
Twitch
Twitter
Two Sigma
Uber
Ubs
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Ukg
Unbxd
Unity
Unstop
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Urban Company
UST
Valve
Veeva
Verily
Veritas
Verizon
Verkada
Viasat
Vimeo
Virtu
Virtusa
Visa
Vk
Vmware
Walmart Labs
Warnermedia
Watchguard
Wayfair
Waymo
Wayve
Wealthfront
Wells Fargo
Weride
Western Digital
Whatfix
Whatnot
Winzo
Wipro
Wise
Wish
Wissen
Wix
Workday
Works Applications
Worldquant
Woven By Toyota
Xing
Yahoo
Yandex
Yatra
Yelp
Yext
Yugabyte
Zalando
Zappos
Zemoso
Zendesk
Zenefits
Zepto
Zeta
Zeta Suite
Zillow
Zip
Ziprecruiter
Zluri
Zocdoc
Zoho
Zomato
Zoom
Zoox
Zopsmart
Zs Associates
Zscaler
Zulily
Zynga
30 days
3 months
6 months
More than 6 months
All
Easy
Medium
Hard
All
Problem
Difficulty
Frequency
Topics
Number of Ways to Buy Pens and Pencils
MEDIUM
87.5%
MathEnumeration
Design Hit Counter
MEDIUM
75%
ArrayBinary SearchDesignQueueData Stream
Word Ladder
HARD
100%
Hash TableStringBreadth-First Search
LRU Cache
MEDIUM
75%
Hash TableLinked ListDesignDoubly-Linked List
Logger Rate Limiter
EASY
75%
Hash TableDesignData Stream
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