Browse LeetCode problems frequently asked by Ncr. Filter by difficulty and timeframe to focus your interview prep.
Last updated: 20 Feb 2026
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Jane Street
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Starbucks
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TIAA
Tiger Analytics
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UST
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Walmart Labs
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Wayfair
Waymo
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Whatfix
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Winzo
Wipro
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Wix
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Worldquant
Woven By Toyota
Xing
Yahoo
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Yatra
Yelp
Yext
Yugabyte
Zalando
Zappos
Zemoso
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Zillow
Zip
Ziprecruiter
Zluri
Zocdoc
Zoho
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Zopsmart
Zs Associates
Zscaler
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Zynga
30 days
3 months
6 months
More than 6 months
All
Easy
Medium
Hard
All
Problem
Difficulty
Frequency
Topics
Number of People Aware of a Secret
MEDIUM
100%
Dynamic ProgrammingQueueSimulation
Longest Substring Without Repeating Characters
MEDIUM
87.5%
Hash TableStringSliding Window
Minimize Malware Spread
HARD
87.5%
ArrayHash TableDepth-First SearchBreadth-First SearchUnion-FindGraph Theory
Design Authentication Manager
MEDIUM
87.5%
Hash TableLinked ListDesignDoubly-Linked List
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