Dashboard Questions Topics Companies Sheets

Cisco Interview Questions

49 coding problems asked in Cisco interviews. Prepare for your technical interview with real questions.

Problems

Easy

Medium

Hard

Difficulty

All49 Easy15 Medium28 Hard6

Title	Solve	Difficulty	Companies	Topics
15. 3Sum	Solve	Medium	Adobe+21	Array Sorting+1
17. Letter Combinations of a Phone Number	Solve	Medium	Airtel+34	Backtracking Hash Table+1
20. Valid Parentheses	Solve	Easy	Adobe+25	Stack String
33. Search in Rotated Sorted Array	Solve	Medium	Accenture+91	Array Binary Search
48. Rotate Image	Solve	Medium	Adobe+9	Array Math+1
49. Group Anagrams	Solve	Medium	Adobe+23	Array Hash Table+2
53. Maximum Subarray	Solve	Medium	Adobe+22	Array Divide and Conquer+1
54. Spiral Matrix	Solve	Medium	Accenture+21	Array Matrix+1
56. Merge Intervals	Solve	Medium	Adobe+24	Array Sorting
62. Unique Paths	Solve	Medium	Accoloite+41	Combinatorics Dynamic Programming+1
63. Unique Paths II	Solve	Medium	Amazon+19	Array Dynamic Programming+1
74. Search a 2D Matrix	Solve	Medium	Accenture+23	Array Binary Search+1
91. Decode Ways	Solve	Medium	Amazon+8	Dynamic Programming String
92. Reverse Linked List II	Solve	Medium	1218 Global+122	Linked List
97. Interleaving String	Solve	Medium	Amazon+23	Dynamic Programming String
121. Best Time to Buy and Sell Stock	Solve	Easy	Adobe+30	Array Dynamic Programming
141. Linked List Cycle	Solve	Easy	42gearMobilitySystems+131	Hash Table Linked List+1
191. Number of 1 Bits	Solve	Easy	Amazon+6	Bit Manipulation Divide and Conquer
198. House Robber	Solve	Medium	Adobe+8	Array Dynamic Programming
212. Word Search II	Solve	Hard	Amazon+9	Array Backtracking+3
215. Kth Largest Element in an Array	Solve	Medium	ABCO+44	Array Divide and Conquer+3
225. Implement Stack using Queues	Solve	Easy	Accenture+54	Design Queue+1
239. Sliding Window Maximum	Solve	Hard	Accion Labs India+66	Array Heap (Priority Queue)+3
278. First Bad Version	Solve	Easy	Adobe+6	Binary Search Interactive
287. Find the Duplicate Number	Solve	Medium	Adobe+30	Array Binary Search+2
338. Counting Bits	Solve	Easy	Adobe+33	Bit Manipulation Dynamic Programming
347. Top K Frequent Elements	Solve	Medium	Adobe+9	Array Bucket Sort+6
394. Decode String	Solve	Medium	Adobe+16	Recursion Stack+1
445. Add Two Numbers II	Solve	Medium	Accenture+49	Linked List Math+1
468. Validate IP Address	Solve	Medium	Amazon+2	String
486. Predict the Winner	Solve	Medium	Amazon+4	Array Dynamic Programming+3
518. Coin Change II	Solve	Medium	Accenture+68	Array Dynamic Programming
526. Beautiful Arrangement	Solve	Medium	Cisco	Array Backtracking+3
557. Reverse Words in a String III	Solve	Easy	Accolite+27	String Two Pointers
724. Find Pivot Index	Solve	Easy	Adobe+8	Array Prefix Sum
741. Cherry Pickup	Solve	Hard	Akuna Capital+7	Array Dynamic Programming+1
787. Cheapest Flights Within K Stops	Solve	Medium	Airbnb+15	Breadth-First Search Depth-First Search+4
809. Expressive Words	Solve	Medium	Cisco+2	Array String+1
905. Sort Array By Parity	Solve	Easy	Amazon+11	Array Sorting+1
968. Binary Tree Cameras	Solve	Hard	Amazon+7	Binary Tree Depth-First Search+2
1010. Pairs of Songs With Total Durations Divisible by 60	Solve	Medium	Amazon+7	Array Counting+1
1312. Minimum Insertion Steps to Make a String Palindrome	Solve	Hard	Adobe+10	Dynamic Programming String
1464. Maximum Product of Two Elements in an Array	Solve	Easy	Amazon+4	Array Heap (Priority Queue)+1
1732. Find the Highest Altitude	Solve	Easy	Apple+4	Array Prefix Sum
1784. Check if Binary String Has at Most One Segment of Ones	Solve	Easy	Cisco	String
1854. Maximum Population Year	Solve	Easy	Bloomberg+2	Array Counting+1
2016. Maximum Difference Between Increasing Elements	Solve	Easy	Apple+4	Array
2067. Number of Equal Count Substrings	Solve	Medium	Cisco	Counting Prefix Sum+1
2081. Sum of k-Mirror Numbers	Solve	Hard	Cisco	Enumeration Math