Arista Networks LeetCode Questions

39 questions all-time · 12 easy · 26 medium · 1 hard

#	Problem	Difficulty	Frequency	Acceptance
1	Construct String With Repeat Limit Hash Table, String, Greedy, Heap (Priority Queue), Counting	Medium	100	0.7%
2	Find the Town Judge Array, Hash Table, Graph Theory	Easy	98	0.5%
3	Reverse Nodes in k-Group Linked List, Recursion	Hard	92	0.7%
4	Restore IP Addresses String, Backtracking	Medium	92	0.6%
5	Reorder List Linked List, Two Pointers, Stack, Recursion	Medium	85	0.7%
6	Reverse Linked List II Linked List	Medium	80	0.5%
7	Remove Linked List Elements Linked List, Recursion	Easy	80	0.5%
8	Course Schedule II Depth-First Search, Breadth-First Search, Graph Theory, Topological Sort	Medium	80	0.6%
9	LRU Cache Hash Table, Linked List, Design, Doubly-Linked List	Medium	74	0.5%
10	Contains Duplicate II Array, Hash Table, Sliding Window	Easy	74	0.5%
11	Missing Number Array, Hash Table, Math, Binary Search, Bit Manipulation, Sorting	Easy	74	0.7%
12	Inorder Successor in BST II Tree, Binary Search Tree, Binary Tree	Medium	74	0.6%
13	Maximum Depth of Binary Tree Tree, Depth-First Search, Breadth-First Search, Binary Tree	Easy	74	0.8%
14	Search in Rotated Sorted Array Array, Binary Search	Medium	74	0.5%
15	Copy List with Random Pointer Hash Table, Linked List	Medium	74	0.6%
16	Rotated Digits Math, Dynamic Programming	Medium	67	0.6%
17	Maximum Units on a Truck Array, Greedy, Sorting	Easy	67	0.7%
18	Permutations Array, Backtracking	Medium	67	0.8%
19	Simplify Path String, Stack	Medium	67	0.5%
20	Remove Duplicates from Sorted List II Linked List, Two Pointers	Medium	67	0.5%
21	Merge In Between Linked Lists Linked List	Medium	57	0.8%
22	Kth Largest Element in a Stream Tree, Design, Binary Search Tree, Heap (Priority Queue), Binary Tree, Data Stream	Easy	57	0.6%
23	Palindromic Substrings Two Pointers, String, Dynamic Programming	Medium	57	0.7%
24	Path Sum II Backtracking, Tree, Depth-First Search, Binary Tree	Medium	57	0.6%
25	Word Search Array, String, Backtracking, Depth-First Search, Matrix	Medium	57	0.5%
26	Longest Palindromic Substring Two Pointers, String, Dynamic Programming	Medium	57	0.4%
27	Maximum Subarray Array, Divide and Conquer, Dynamic Programming	Medium	57	0.5%
28	Word Break Array, Hash Table, String, Dynamic Programming, Trie, Memoization	Medium	57	0.5%
29	Remove All Occurrences of a Substring String, Stack, Simulation	Medium	57	0.8%
30	Top K Frequent Elements Array, Hash Table, Divide and Conquer, Sorting, Heap (Priority Queue), Bucket Sort, Counting, Quickselect	Medium	57	0.7%
31	Edit Distance String, Dynamic Programming	Medium	57	0.6%
32	Valid Palindrome Two Pointers, String	Easy	57	0.5%
33	Longest Substring Without Repeating Characters Hash Table, String, Sliding Window	Medium	57	0.4%
34	Swap Nodes in Pairs Linked List, Recursion	Medium	57	0.7%
35	Decode String String, Stack, Recursion	Medium	57	0.6%
36	Count Negative Numbers in a Sorted Matrix Array, Binary Search, Matrix	Easy	57	0.8%
37	Moving Average from Data Stream Array, Design, Queue, Data Stream	Easy	57	0.8%
38	Implement Queue using Stacks Stack, Design, Queue	Easy	57	0.7%
39	Merge Two Sorted Lists Linked List, Recursion	Easy	57	0.7%

How to read this list

The tabs at the top split the questions by how recently people said they were asked in interviews. "Last 30 Days" is the past month, "Last 3 Months" is the past quarter, and so on. "All Time" is every question on record for this company.

Frequency is a score from 0 to 100 for how often a question showed up in that time window. A higher number means it came up more often, so the list starts with the most common questions first. Acceptance is the share of submissions that pass on LeetCode. Click any question to open it on LeetCode.