Wildcards

Capital One interview questions

Grouped by topic, sorted Easy → Medium → Hard, then by LeetCode ID. Click a problem to open it on LeetCode; the chapter column links to the handbook chapter that covers it.

Problems
17
Easy
3
Medium
11
Hard
3
Mapped to chapter
4

Array

14 problems

Easy 1

896Monotonic Arrayalso at:AmazonGoogle Easy—

Medium 10

54Spiral Matrixalso at:AdobeAmazonAMD Also at 21 moreAppleAutodeskBloombergByteDanceCiscoDatabricksDelhiveryeBayEpic SystemsFlipkartGoogleIntuitMetaMicrosoftMorgan StanleyNetflixOYOPayPalPhonePeRobloxZoho MediumChapter
200Number of Islands★ also at:Walmart Global TechAdobeAmazon Also at 43 moreAMDAppleAutodeskBloombergByteDanceCiscoCitadelCloudflareCREDCrowdStrikeDocuSignDoorDashDropboxeBayFlipkartGoldman SachsGoogleIntelIntuitLinkedInLyftMeeshoMetaMicrosoftOktaOlaPayPalPhonePePinterestQualcommRedditSAPSnapSplunkSpotifyTargetTeslaToastUberUrban CompanyVMwareZohoZomato MediumChapter
723Candy Crushalso at:MetaRoblox Medium—
1743Restore the Array From Adjacent Pairsalso at:MetaRobinhoodRoblox Medium—
2023Number of Pairs of Strings With Concatenation Equal to TargetMedium—
2043Simple Bank Systemalso at:AirbnbCoinbaseDropbox Also at 4 moreMetaOktaPhonePeStripe Medium—
2502Design Memory Allocatoralso at:AmazonNVIDIAOpenAI Also at 3 moreQualcommRobloxTwo Sigma Medium—
2672Number of Adjacent Elements With the Same Coloralso at:MetaRoblox Medium—
2817Minimum Absolute Difference Between Elements With Constraintalso at:DatabricksRobloxVisa Medium—
3043Find the Length of the Longest Common Prefixalso at:AmazonBloombergCoinbase Also at 4 moreDatabricksGoogleRobloxVisa Medium—

Hard 3

68Text Justificationalso at:AirbnbAmazonAtlassian Also at 15 moreAutodeskBloombergCoinbaseDatabricksGoogleLyftMicrosoftMongoDBNetflixPayPalRobinhoodRobloxSamsaraTwilioVisa Hard—
2141Maximum Running Time of N Computersalso at:AmazonGoogleMeta Hard—
3072Distribute Elements Into Two Arrays IIalso at:Autodesk Hard—

Misc

3 problems

Easy 2

257Binary Tree Pathsalso at:AdobeAmazonGoogle Also at 1 moreRevolut EasyChapter
3019Number of Changing Keysalso at:AutodeskVisa Easy—

Medium 1

647Palindromic Substringsalso at:AdobeAmazonArista Networks Also at 7 moreCiscoCitadelEpic SystemsMetaMicrosoftPayPalVMware MediumChapter