Coding Topic

String OA Questions

Practice 742+ String coding questions from real online assessments. Filter by company, solve in the OAHelper editor, and prepare for company-wise OAs.

QuestionCompanyDifficulty

Restoring Messages From a Permuted-Alphabet Cipherbnp paribasMedium Longest Opening Shared by Every WordeyEasy Largest Maximum-Digit-Sum Number Below NhsbcMedium Largest Good Binary String Through Adjacent SwapsukgHard Group Chat Mention StatisticssusquehannaMedium Magical Pairs by a Single Digit SwapsusquehannaMedium Overlapping Word Occurrences in a Sentencemorgan stanleyMedium Smallest Rearrangement With No Equal Neighboursmorgan stanleyMedium Longest Window of Unique CharactersprotonMedium Temple Page Numbers in Ascending OrdertescoMedium Reach the Goal String by Left Shiftsmorgan stanleyEasy Longest Common Subsequence of Two Lowercase StringsamazonMedium Longest Streak of Equal Adjacent Valuesrystad energyEasy First Letter That Occurs Exactly Oncerystad energyEasy Longest Rearrangeable Palindromic RunvisaMedium Username Strength ReportmicrosoftMedium Lexicographically Smallest Closed Walk in a GridgoogleHard Longest Run of Distinct CharacterskkrMedium Matching One-Step Rotationsgoldman sachsMedium Character Frequency CounterentntEasy Anagram Windows in a TextporterMedium Zuma GameinmobiHard Serving Students from Groups of Consecutive GaccentureMedium Longest Valid SubstringmicrosoftMedium Longest Valid Cipher SubstringtescoEasy Nested Transactions Key-Value StoretescoMedium Longest Substring Without Repeating Charactersakuna capitalEasy Sorted Extended Diagonalscapital oneMedium Alphabetically Smallest Palindrome After Fewest ChangesgoogleMedium Shortest Business Relationship PathtescoMedium Four-Player Trick-Taking Card Game SimulationtescoMedium Longest Repeated Character Runhudson river tradingEasy Treasury Settlement LedgerstripeHard Substring In Any RotationinfosysMedium Longest Shrinkable WordgoogleMedium Maximum Palindromes After Cross-String Letter SwapsmicrosoftMedium Run-Length Compression of a StringentntMedium Flatten a Nested ListentntMedium Reverse the Characters of Every WordentntMedium Reverse the Characters of a StringentntEasy Lexicographically Smallest Flight Codemorgan stanleyMedium Count Strings Whose Day Rotates Into NightkaigenticMedium Infer the Concrete Return Type of a Generic Function SignaturecmartHard Cover An Address Range With The Fewest CIDR BlockscmartMedium Walk IPv4 Addresses Down To The Lower BoundcmartMedium Walk IPv4 Addresses Up To The Upper BoundcmartMedium List Every Address In A CIDR NetworkcmartMedium Durable Store With Snapshots And RecoverycmartMedium Segmented Durable Key-Value StorecmartMedium FizzBuzz Labels for the First n IntegersentntEasy