All Cisco Coding Interview Questions
72 questions we track for Cisco, most frequently asked first. Practice any of them in the code editor and get AI feedback on your solution.
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- Junior26% (19)
- Mid/Senior54% (39)
- Staff19% (14)
Questions
- Two Sum129 companiesJunior
- Add Two Numbers38 companiesMid/Senior
- Longest Substring Without Repeating Characters112 companiesMid/Senior
- Longest Palindromic Substring76 companiesMid/Senior
- 3Sum61 companiesMid/Senior
- Letter Combinations of a Phone Number40 companiesMid/Senior
- Valid Parentheses119 companiesJunior
- Merge k Sorted Lists53 companiesStaff
- Reverse Nodes in k-Group28 companiesStaff
- Search in Rotated Sorted Array55 companiesMid/Senior
- Trapping Rain Water78 companiesStaff
- Permutations26 companiesMid/Senior
- Rotate Image37 companiesMid/Senior
- Group Anagrams91 companiesMid/Senior
- Pow(x, n)23 companiesMid/Senior
- Maximum Subarray66 companiesMid/Senior
- Spiral Matrix53 companiesMid/Senior
- Jump Game34 companiesMid/Senior
- Merge Intervals109 companiesMid/Senior
- Edit Distance31 companiesMid/Senior
- Sort Colors37 companiesMid/Senior
- Minimum Window Substring34 companiesStaff
- Word Search40 companiesMid/Senior
- Search in Rotated Sorted Array II10 companiesMid/Senior
- Largest Rectangle in Histogram32 companiesStaff
- Merge Sorted Array38 companiesJunior
- Best Time to Buy and Sell Stock90 companiesJunior
- Valid Palindrome44 companiesJunior
- Longest Consecutive Sequence40 companiesMid/Senior
- Single Number15 companiesJunior
- Linked List Cycle25 companiesJunior
- Max Points on a Line16 companiesStaff
- Reverse Words in a String29 companiesMid/Senior
- House Robber38 companiesMid/Senior
- Number of Islands81 companiesMid/Senior
- Happy Number27 companiesJunior
- Reverse Linked List34 companiesJunior
- Word Search II20 companiesStaff
- Kth Smallest Element in a BST11 companiesMid/Senior
- Lowest Common Ancestor of a Binary Tree22 companiesMid/Senior
- Sliding Window Maximum46 companiesStaff
- Meeting Rooms II43 companiesMid/Senior
- Integer to English Words23 companiesStaff
- Move Zeroes47 companiesJunior
- Find the Duplicate Number22 companiesMid/Senior
- Decode String40 companiesMid/Senior
- Fizz Buzz19 companiesJunior
- Predict the Winner6 companiesMid/Senior
- Diagonal Traverse12 companiesMid/Senior
- Subarray Sum Equals K46 companiesMid/Senior
- Permutation in String16 companiesMid/Senior
- Can Place Flowers16 companiesJunior
- Palindromic Substrings25 companiesMid/Senior
- Two Sum IV - Input is a BST8 companiesJunior
- Expressive Words2 companiesMid/Senior
- Snakes and Ladders12 companiesMid/Senior
- Remove All Adjacent Duplicates In String16 companiesJunior
- Longest Common Subsequence20 companiesMid/Senior
- Convert Binary Number in a Linked List to Integer10 companiesJunior
- Lucky Numbers in a Matrix3 companiesJunior
- Minimum Time to Collect All Apples in a Tree6 companiesMid/Senior
- Find Servers That Handled Most Number of Requests6 companiesStaff
- Check if Binary String Has at Most One Segment of Ones3 companiesJunior
- Maximum Difference Between Increasing Elements5 companiesJunior
- Number of Valid Words in a Sentence3 companiesJunior
- Sum of k-Mirror Numbers5 companiesStaff
- Minimum Cost to Make Array Equal6 companiesStaff
- Collect Coins in a Tree12 companiesStaff
- Count of Integers2 companiesStaff
- Find the Largest Area of Square Inside Two Rectangles5 companiesMid/Senior
- Power Grid Maintenance7 companiesMid/Senior
- Minimum Sensors to Cover Grid4 companiesMid/Senior