Combinatorics Interview Questions
44 real interview questions test Combinatorics. Practice any of them in the code editor and get AI feedback on your solution.
- Junior7% (3)
- Mid/Senior32% (14)
- Staff61% (27)
Companies that ask Combinatorics the most
Questions
- Unique Paths22 companiesMid/Senior
- Count the Number of Infection Sequences6 companiesStaff
- Sum of All Subset XOR Totals5 companiesJunior
- Find Triangular Sum of an Array5 companiesMid/Senior
- Distribute Candies Among Children II5 companiesMid/Senior
- Count the Number of Arrays with K Matching Adjacent Elements5 companiesStaff
- Count the Number of Ideal Arrays4 companiesStaff
- The Number of Beautiful Subsets4 companiesMid/Senior
- Check If Digits Are Equal in String After Operations I4 companiesJunior
- Ugly Number III3 companiesMid/Senior
- Count All Valid Pickup and Delivery Options3 companiesStaff
- Manhattan Distances of All Arrangements of Pieces3 companiesStaff
- Maximum and Minimum Sums of at Most Size K Subsequences3 companiesMid/Senior
- Count the Number of Computer Unlocking Permutations3 companiesMid/Senior
- Number of Music Playlists2 companiesStaff
- Number of Ways to Reorder Array to Get Same BST2 companiesStaff
- Distribute Candies Among Children I2 companiesJunior
- Right Triangles2 companiesMid/Senior
- Find the Count of Monotonic Pairs I2 companiesStaff
- Find the Count of Good Integers2 companiesStaff
- Count Number of Balanced Permutations2 companiesStaff
- Check If Digits Are Equal in String After Operations II2 companiesStaff
- Find Sum of Array Product of Magical Sequences2 companiesStaff
- Poor Pigs1 companyStaff
- Number of Sets of K Non-Overlapping Line Segments1 companyMid/Senior
- Count Sorted Vowel Strings1 companyMid/Senior
- Kth Smallest Instructions1 companyStaff
- Count Ways to Make Array With Product1 companyStaff
- Minimum Number of Operations to Make String Sorted1 companyStaff
- Number of Ways to Rearrange Sticks With K Sticks Visible1 companyStaff
- Count Ways to Build Rooms in an Ant Colony1 companyStaff
- Vowels of All Substrings1 companyMid/Senior
- Number of Ways to Reach a Position After Exactly k Steps1 companyMid/Senior
- Count Anagrams1 companyStaff
- Count K-Subsequences of a String With Maximum Beauty1 companyStaff
- Number of Strings Which Can Be Rearranged to Contain Substring1 companyMid/Senior
- Count the Number of Good Partitions1 companyStaff
- Find Number of Ways to Reach the K-th Stair1 companyStaff
- Find the N-th Value After K Seconds1 companyMid/Senior
- Find the Count of Monotonic Pairs II1 companyStaff
- Sorted GCD Pair Queries1 companyStaff
- Find the Number of Possible Ways for an Event1 companyStaff
- Count K-Reducible Numbers Less Than N1 companyStaff
- Find Nth Smallest Integer With K One Bits1 companyStaff