All Twitter Coding Interview Questions
36 questions we track for Twitter, most frequently asked first. Practice any of them in the code editor and get AI feedback on your solution.
- Junior17% (6)
- Mid/Senior53% (19)
- Staff31% (11)
Questions
- Regular Expression Matching27 companiesStaff
- Integer to Roman32 companiesMid/Senior
- Valid Parentheses119 companiesJunior
- Merge k Sorted Lists53 companiesStaff
- Trapping Rain Water78 companiesStaff
- Multiply Strings17 companiesMid/Senior
- Wildcard Matching18 companiesStaff
- Merge Intervals109 companiesMid/Senior
- Permutation Sequence7 companiesStaff
- Pascal's Triangle18 companiesJunior
- Word Break II16 companiesStaff
- Max Points on a Line16 companiesStaff
- One Edit Distance6 companiesMid/Senior
- Happy Number27 companiesJunior
- Reverse Linked List34 companiesJunior
- The Skyline Problem14 companiesStaff
- Lowest Common Ancestor of a Binary Search Tree10 companiesMid/Senior
- Alien Dictionary17 companiesStaff
- Best Meeting Point9 companiesStaff
- Number of Connected Components in an Undirected Graph8 companiesMid/Senior
- Kth Smallest Element in a Sorted Matrix10 companiesMid/Senior
- Trapping Rain Water II14 companiesStaff
- Minimum Genetic Mutation6 companiesMid/Senior
- Validate IP Address12 companiesMid/Senior
- Largest Plus Sign2 companiesMid/Senior
- Masking Personal Information2 companiesMid/Senior
- Binary Gap6 companiesJunior
- Minimum Cost to Connect Sticks6 companiesMid/Senior
- Minimum Number of Steps to Make Two Strings Anagram10 companiesMid/Senior
- Minimum Elements to Add to Form a Given Sum1 companyMid/Senior
- Finding the Users Active Minutes2 companiesMid/Senior
- Process Tasks Using Servers5 companiesMid/Senior
- Count Sub Islands5 companiesMid/Senior
- Remove All Occurrences of a Substring13 companiesMid/Senior
- Time Needed to Buy Tickets8 companiesJunior
- Number of Black Blocks9 companiesMid/Senior