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Zocdoc LeetCode Interview Questions

Practice 38 real coding problems frequently asked in Zocdoc technical interviews. Master these questions to ace your next Zocdoc software engineering interview.

8 Easy
21 Medium
9 Hard

Top Topics at Zocdoc

ArrayHash TableStringHeap (Priority Queue)Dynamic Programming

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Zocdoc Interview Problems

ProblemDifficultyDiffFrequencyTopicsAction
Maximum Nesting Depth of the Parentheses
100%
EasyE
100%
StringStack
Solve→
Identify the Largest Outlier in an Array
98%
MediumM
98%
ArrayHash Table+2
Solve→
Number of Islands
84%
MediumM
84%
ArrayDepth-First Search+3
Solve→
Linked List Cycle
82%
EasyE
82%
Hash TableLinked List+1
Solve→
Make String a Subsequence Using Cyclic Increments
81%
MediumM
81%
Two PointersString
Solve→
Reorganize String
81%
MediumM
81%
Hash TableString+4
Solve→
Count Unhappy Friends
77%
MediumM
77%
ArraySimulation
Solve→
All O`one Data Structure
77%
HardH
77%
Hash TableLinked List+2
Solve→
Sort Integers by The Power Value
76%
MediumM
76%
Dynamic ProgrammingMemoization+1
Solve→
Longest Subarray of 1's After Deleting One Element
75%
MediumM
75%
ArrayDynamic Programming+1
Solve→
Largest Rectangle in Histogram
74%
HardH
74%
ArrayStack+1
Solve→
Longest Substring Without Repeating Characters
74%
MediumM
74%
Hash TableString+1
Solve→
Minimum Time to Visit a Cell In a Grid
73%
HardH
73%
ArrayBreadth-First Search+4
Solve→
Length of Last Word
73%
EasyE
73%
String
Solve→
Word Break II
71%
HardH
71%
ArrayHash Table+5
Solve→
Find K Closest Elements
69%
MediumM
69%
ArrayTwo Pointers+4
Solve→
Longest Increasing Subsequence
68%
MediumM
68%
ArrayBinary Search+1
Solve→
Find First and Last Position of Element in Sorted Array
68%
MediumM
68%
ArrayBinary Search
Solve→
Expression Add Operators
59%
HardH
59%
MathString+1
Solve→
Binary Tree Vertical Order Traversal
56%
MediumM
56%
Hash TableTree+4
Solve→
Lowest Common Ancestor of a Binary Tree
56%
MediumM
56%
TreeDepth-First Search+1
Solve→
Find K Pairs with Smallest Sums
53%
MediumM
53%
ArrayHeap (Priority Queue)
Solve→
Insert Delete GetRandom O(1) - Duplicates allowed
49%
HardH
49%
ArrayHash Table+3
Solve→
Remove Duplicates from Sorted Array
49%
EasyE
49%
ArrayTwo Pointers
Solve→
Dot Product of Two Sparse Vectors
48%
MediumM
48%
ArrayHash Table+2
Solve→

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Remove All Occurrences of a Substring
46%
MediumM
46%
StringStack+1
Solve→
Split Array Largest Sum
42%
HardH
42%
ArrayBinary Search+3
Solve→
Course Schedule
42%
MediumM
42%
Depth-First SearchBreadth-First Search+2
Solve→
Sqrt(x)
42%
EasyE
42%
MathBinary Search
Solve→
Trips and Users
36%
HardH
36%
Database
Solve→
Maximum Number of Events That Can Be Attended
34%
MediumM
34%
ArrayGreedy+2
Solve→
High Five
34%
EasyE
34%
ArrayHash Table+2
Solve→
Populating Next Right Pointers in Each Node
34%
MediumM
34%
Linked ListTree+3
Solve→
Diameter of Binary Tree
31%
EasyE
31%
TreeDepth-First Search+1
Solve→
Maximum Subarray
26%
MediumM
26%
ArrayDivide and Conquer+1
Solve→
Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit
25%
MediumM
25%
ArrayQueue+4
Solve→
Minimum Difference in Sums After Removal of Elements
24%
HardH
24%
ArrayDynamic Programming+1
Solve→
Add Two Integers
21%
EasyE
21%
Math
Solve→

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Frequently Asked Questions

What LeetCode problems does Zocdoc ask in interviews?

Zocdoc commonly asks 38 coding problems in technical interviews, including Maximum Nesting Depth of the Parentheses, Identify the Largest Outlier in an Array, Number of Islands. The difficulty breakdown is 8 Easy, 21 Medium, and 9 Hard problems.

How should I prepare for a Zocdoc coding interview?

Focus on the most frequently asked problems first, especially those with high frequency scores. Zocdoc interviews typically emphasize Array and Hash Table. Practice explaining your thought process while coding.

What is the difficulty level of Zocdoc coding interviews?

Based on our data, Zocdoc interviews include 8 Easy (21%), 21 Medium (55%), and 9 Hard (24%) problems.

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