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Interview question tracker

IBM Coding Interview Questions — Last 6 months

Practice 33 coding questions from IBM company-tagged LeetCode lists in the source’s last 6 months reporting window. Explore reported interview questions and track your progress.

Company-wide data from Fahad7177-jeh/leetcode-company-wise-questions; see its AGPL-3.0 license. All-time questions also use dataengineervishal/leetcode-companywise-questions (MIT license).

Reporting periods reflect source data, not verified interview dates. Questions can recur; inclusion does not guarantee they will appear in your interview.

Updated weekly · Latest source check: 15 Oct 2026ⓘLatest successful check of the sources used by this company. A check does not necessarily mean the questions changed.

One question at a time.

Top questions 33

Done	Question	LeetCode
Mark Best Time to Buy and Sell Stock completed	Best Time to Buy and Sell Stock	Solve
Mark Fizz Buzz completed	Fizz Buzz	Solve
Mark Merge Intervals completed	Merge Intervals	Solve
Mark Integer to Roman completed	Integer to Roman	Solve
Mark Longest Mountain in Array completed	Longest Mountain in Array	Solve
Mark Two Sum completed	Two Sum	Solve
Mark Water Bottles completed	Water Bottles	Solve
Mark Max Consecutive Ones III completed	Max Consecutive Ones III	Solve
Mark Roman to Integer completed	Roman to Integer	Solve
Mark Valid Anagram completed	Valid Anagram	Solve
Mark Alert Using Same Key-Card Three or More Times in a One Hour Period completed	Alert Using Same Key-Card Three or More Times in a One Hour Period	Solve
Mark Exclusive Time of Functions completed	Exclusive Time of Functions	Solve
Mark Find the Smallest Divisor Given a Threshold completed	Find the Smallest Divisor Given a Threshold	Solve
Mark Get Equal Substrings Within Budget completed	Get Equal Substrings Within Budget	Solve
Mark Grumpy Bookstore Owner completed	Grumpy Bookstore Owner	Solve
Mark Heaters completed	Heaters	Solve
Mark Intersection of Two Arrays II completed	Intersection of Two Arrays II	Solve
Mark Longest Common Prefix completed	Longest Common Prefix	Solve
Mark Longest Substring Without Repeating Characters completed	Longest Substring Without Repeating Characters	Solve
Mark Meeting Rooms II completed	Meeting Rooms II	Solve
Mark Min Stack completed	Min Stack	Solve
Mark Minimum Add to Make Parentheses Valid completed	Minimum Add to Make Parentheses Valid	Solve
Mark Minimum Cost to Connect Sticks completed	Minimum Cost to Connect Sticks	Solve
Mark Minimum Number of Swaps to Make the String Balanced completed	Minimum Number of Swaps to Make the String Balanced	Solve
Mark Number of Islands completed	Number of Islands	Solve
Mark Number of Operations to Make Network Connected completed	Number of Operations to Make Network Connected	Solve
Mark Reach a Number completed	Reach a Number	Solve
Mark Reverse Words in a String completed	Reverse Words in a String	Solve
Mark Single-Threaded CPU completed	Single-Threaded CPU	Solve
Mark Sliding Window Maximum completed	Sliding Window Maximum	Solve
Mark The Employee That Worked on the Longest Task completed	The Employee That Worked on the Longest Task	Solve
Mark Valid Parentheses completed	Valid Parentheses	Solve
Mark Word Search completed	Word Search	Solve