Cisco vs Grammarly Interview Questions
Cisco lists 87 LeetCode interview questions while Grammarly lists 30. They share 7 problems — 8% of Cisco's bank and 23% of Grammarly's. Focus on the overlap first, then drill into 80 Cisco-only and 23 Grammarly-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 7 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Cisco and Grammarly.
Step 2 — Company-specific depth: Add Cisco-specific problems like Longest Palindromic Substring, House Robber, Predict the Winner and Grammarly-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Cisco skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
7 Shared Questions
High-priority problems to practice for both Cisco and Grammarly.
| Problem | Difficulty |
|---|---|
| Merge Intervals | Medium |
| Trapping Rain Water | Hard |
| Number of Islands | Medium |
| Word Search | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Unique Paths | Medium |
| Climbing Stairs | Easy |
Unique to Cisco (80)
Problems in Cisco's list that do not appear at Grammarly.
| Problem | Difficulty |
|---|---|
| Longest Palindromic Substring | Medium |
| House Robber | Medium |
| Predict the Winner | Medium |
| Lucky Numbers in a Matrix | Easy |
| Rotate Image | Medium |
| Spiral Matrix | Medium |
| Fizz Buzz | Easy |
| LRU Cache | Medium |
| Snakes and Ladders | Medium |
| Number of Valid Words in a Sentence | Easy |
| Maximum Difference Between Increasing Elements | Easy |
| Find Third Transaction | Medium |
Unique to Grammarly (23)
Problems in Grammarly's list that do not appear at Cisco.
| Problem | Difficulty |
|---|---|
| Remove All Adjacent Duplicates In String | Easy |
| Search in Rotated Sorted Array | Medium |
| Vowel Spellchecker | Medium |
| Remove All Adjacent Duplicates in String II | Medium |
| Repeated DNA Sequences | Medium |
| Sqrt(x) | Easy |
| Generate Parentheses | Medium |
| Perfect Number | Easy |
| Logger Rate Limiter | Easy |
| Sum of Left Leaves | Easy |
| Non-overlapping Intervals | Medium |
| Search Insert Position | Easy |
Frequently Asked Questions
How many LeetCode questions do Cisco and Grammarly share?
Cisco and Grammarly share 7 LeetCode interview questions. 80 problems appear only in Cisco's list and 23 appear only in Grammarly's list.
What topics overlap most between Cisco and Grammarly?
The most common shared topics between Cisco and Grammarly are Array (5 shared questions), Dynamic Programming (3 shared questions), Math (3 shared questions), Depth-First Search (2 shared questions), Matrix (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Cisco or Grammarly?
Cisco has 24 Easy, 50 Medium, and 13 Hard questions. Grammarly has 7 Easy, 19 Medium, and 4 Hard questions. Cisco has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Cisco and Grammarly?
Start with the 7 shared problems since they cover what both companies ask most often. Then add 20 Cisco-specific and 20 Grammarly-specific questions to round out your prep.