Quant & Finance

Bloomberg 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
50
Easy
13
Medium
28
Hard
9
Mapped to chapter
25

Array

26 problems

Easy 6

121Best Time to Buy and Sell Stockalso at:CitadelGoldman SachsJPMorgan Also at 39 moreMorgan StanleyTwo SigmaAdobeAirtelAmazonAppleAtlassianByteDanceCiscoCoinbaseFlipkartGoogleGrowwInstacartIntuitJioLyftMetaMicrosoftMyntraNetflixNVIDIAOlaPayPalPhonePeRakutenRobinhoodSAPSnapSwiggyTargetTeslaTiger AnalyticsToastUberVisaVMwareWalmart Global TechZoho Easy—
169Majority Elementalso at:Morgan StanleyAdobeAmazon Also at 7 moreAutodeskFreshworksGoogleJioMetaMicrosoftQualcomm Easy—
485Max Consecutive Onesalso at:AmazonGoogleMeta Also at 1 moreMicrosoft EasyChapter
643Maximum Average Subarray I★ also at:AmazonGoogleMeta Also at 1 moreMicrosoft EasyChapter
1752Check if Array Is Sorted and Rotatedalso at:AmazonGoogleMeta Also at 1 moreMicrosoft Easy—
1929Concatenation of Arrayalso at:AmazonGoogleMeta Also at 1 moreMicrosoft Easy—

Medium 16

36Valid Sudokualso at:AdobeAmazonApple Also at 10 moreAutodeskGoogleInstacartMetaMicrosoftPayPalSamsaraSnapVMwareZoho MediumChapter
40Combination Sum IIalso at:AdobeDiscordeBay Also at 6 moreGoogleMetaMicrosoftRakutenSnapTesla Medium—
47Permutations IIalso at:CitadelAdobeAmazon Also at 3 moreGoogleMicrosoftVMware MediumChapter
48Rotate Image★ also at:JPMorganAdobeAmazon Also at 17 moreAppleCiscoDiscordFlipkartGoogleIntelLyftMetaMicrosoftNetflixPayPalQualcommRakutenRobloxSamsaraVisaZoho MediumChapter
75Sort Colorsalso at:Morgan StanleyAmazonAutodesk Also at 18 moreCars24CiscoDelhiveryeBayFlipkartGoogleGrowwInfo Edge (Naukri)MetaMicrosoftNVIDIAOlaPayPalPhonePeSwiggyTargetVMwareWalmart Global Tech MediumChapter
120Trianglealso at:AmazonGoogleMeta Medium—
134Gas Stationalso at:Goldman SachsAmazonApple Also at 7 moreCure.fitDream11FlipkartGoogleJuspayMetaPhonePe MediumChapter
150Evaluate Reverse Polish Notationalso at:CitadelAmazonGoogle Also at 3 moreMetaMicrosoftVMware MediumChapter
300Longest Increasing Subsequence★ also at:CitadelMorgan StanleyAdobe Also at 12 moreAmazonAtlassianeBayFreshworksGoogleIntuitLINEMetaMicrosoftNVIDIAPayPalVMware MediumChapter
435Non-overlapping Intervals★ also at:AmazonGoogleInstacart Also at 1 moreMeta MediumChapter
611Valid Triangle NumberMedium—
692Top K Frequent Wordsalso at:AdobeAmazonGoogle Also at 7 moreNetflixPayPalRipplingRobinhoodUberVMwareYelp MediumChapter
994Rotting Oranges★ also at:CitadelAdobeAmazon Also at 23 moreChimeCleartripDoorDashDream11eBayFlipkartGoogleIntuitLinkedInMetaMicrosoftMyntraOpenAIOYOPayPalPhonePeRakutenRobloxSalesforceUberUrban CompanyZohoZoom MediumChapter
1583Count Unhappy Friendsalso at:Google Medium—
2149Rearrange Array Elements by Signalso at:AmazonGoogle Medium—
3488Closest Equal Element Queriesalso at:AmazonGoogle Medium—

Hard 4

123Best Time to Buy and Sell Stock IIIalso at:CitadelAmazonGoogle Also at 4 moreGrowwMetaPayPalSnap Hard—
502IPOalso at:AmazonPhonePeUber HardChapter
1095Find in Mountain Arrayalso at:Google Hard—
2035Partition Array Into Two Arrays to Minimize Sum Differencealso at:GoogleMicrosoft Hard—

Hash Table

7 problems

Easy 1

387First Unique Character in a Stringalso at:Goldman SachsMorgan StanleyAdobe Also at 6 moreAmazonGoogleMicrosoftPayPalRazorpayWise Easy—

Medium 5

138Copy List with Random Pointeralso at:Morgan StanleyAdobeAmazon Also at 8 moreArista NetworksDocuSigneBayGoogleIntelMetaMicrosoftOYO MediumChapter
142Linked List Cycle II★ also at:AdobeAirtelAmazon Also at 7 moreAutodeskCoinDCXDelhiveryeBayGoogleMicrosoftPaytm MediumChapter
208Implement Trie (Prefix Tree)★ also at:CitadelAmazonApple Also at 10 moreBlockDocuSignDoorDasheBayGoogleMetaMicrosoftMongoDBRobloxX (Twitter) MediumChapter
424Longest Repeating Character Replacementalso at:AmazonDocuSignFlipkart Also at 3 moreGoogleMetaMicrosoft MediumChapter
1396Design Underground System★ also at:Rippling MediumChapter

Hard 1

30Substring with Concatenation of All Wordsalso at:AdobeAmazonGoogle Also at 2 moreMetaMicrosoft HardChapter

String

4 problems

Easy 1

1614Maximum Nesting Depth of the Parenthesesalso at:IntelMeta Easy—

Medium 1

72Edit Distance★ also at:AdobeAmazonApple Also at 13 moreArista NetworksByteDanceCiscoFlipkartGoogleMetaMicrosoftNaviQualcommSnapSwiggyVMwareZoho MediumChapter

Hard 2

32Longest Valid Parenthesesalso at:AdobeAmazoneBay Also at 8 moreFlipkartGoogleGrowwInMobiIntuitMetaMicrosoftNykaa Hard—
428Serialize and Deserialize N-ary Treealso at:AppleeBayGoogle Also at 1 moreMicrosoft Hard—

Math

3 problems

Easy 2

263Ugly Numberalso at:AmazonGoogle Easy—
509Fibonacci Number★ also at:AmazonGoogleIntel Also at 2 moreMetaMicrosoft EasyChapter

Hard 1

224Basic Calculator★ also at:CitadelAdobeAmazon Also at 5 moreDoorDashGoogleMetaMicrosoftTesla HardChapter

Misc

10 problems

Easy 3

175Combine Two Tablesalso at:AdobeAmazonGoogle Also at 2 moreMetaMicrosoft Easy—
680Valid Palindrome IIalso at:AmazonGoogleMeta Also at 1 moreMicrosoft Easy—
1211Queries Quality and Percentagealso at:Amazon Easy—

Medium 6

2Add Two Numbersalso at:Jane StreetAdobeAirbnb Also at 12 moreAmazonAppleByteDanceCiscoDoorDasheBayGoogleLyftMetaMicrosoftSAPVMware MediumChapter
102Binary Tree Level Order Traversal★ also at:AdobeAmazonDocuSign Also at 7 moreeBayGoogleIntuitMetaMicrosoftOYOVMware MediumChapter
237Delete Node in a Linked Listalso at:AdobeAmazonGoogle Also at 1 moreMeta Medium—
547Number of Provincesalso at:Two SigmaAdobeAmazon Also at 5 moreeBayGoogleMetaMicrosoftNavi MediumChapter
799Champagne Toweralso at:AmazonGoogle Medium—
1188Design Bounded Blocking Queuealso at:LinkedInTesla Medium—

Hard 1

1411Number of Ways to Paint N × 3 Gridalso at:AmazonGoogleMeta Hard—