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Vanguard LeetCode Interview Questions

Practice 32 real coding problems frequently asked in Vanguard technical interviews. Master these questions to ace your next Vanguard software engineering interview.

11 Easy
18 Medium
3 Hard

Top Topics at Vanguard

ArrayHash TableStringDynamic ProgrammingBreadth-First Search

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Vanguard Interview Problems

ProblemDifficultyDiffFrequencyTopicsAction
Reveal Cards In Increasing Order
100%
MediumM
100%
ArrayQueue+2
Solve→
Closest Binary Search Tree Value
100%
EasyE
100%
Binary SearchTree+3
Solve→
Add Two Integers
97%
EasyE
97%
Math
Solve→
Minimum Time to Visit a Cell In a Grid
96%
HardH
96%
ArrayBreadth-First Search+4
Solve→
Maximum Sum of Distinct Subarrays With Length K
92%
MediumM
92%
ArrayHash Table+1
Solve→
Permutation in String
82%
MediumM
82%
Hash TableTwo Pointers+2
Solve→
Shortest Path in Binary Matrix
81%
MediumM
81%
ArrayBreadth-First Search+1
Solve→
Word Pattern II
78%
MediumM
78%
Hash TableString+1
Solve→
Is Subsequence
77%
EasyE
77%
Two PointersString+1
Solve→
Course Schedule
76%
MediumM
76%
Depth-First SearchBreadth-First Search+2
Solve→
Check if One String Swap Can Make Strings Equal
76%
EasyE
76%
Hash TableString+1
Solve→
Jump Game
71%
MediumM
71%
ArrayDynamic Programming+1
Solve→
First Unique Character in a String
69%
EasyE
69%
Hash TableString+2
Solve→
Logger Rate Limiter
67%
EasyE
67%
Hash TableDesign+1
Solve→
Find K Pairs with Smallest Sums
66%
MediumM
66%
ArrayHeap (Priority Queue)
Solve→
Longest Substring Without Repeating Characters
62%
MediumM
62%
Hash TableString+1
Solve→
House Robber
62%
MediumM
62%
ArrayDynamic Programming
Solve→
Maximum Size Subarray Sum Equals k
59%
MediumM
59%
ArrayHash Table+1
Solve→
Check If N and Its Double Exist
56%
EasyE
56%
ArrayHash Table+3
Solve→
Remove Nth Node From End of List
51%
MediumM
51%
Linked ListTwo Pointers
Solve→
Best Time to Buy and Sell Stock II
50%
MediumM
50%
ArrayDynamic Programming+1
Solve→
Sort Integers by The Power Value
48%
MediumM
48%
Dynamic ProgrammingMemoization+1
Solve→
Shortest Palindrome
47%
HardH
47%
StringRolling Hash+2
Solve→
Flood Fill
39%
EasyE
39%
ArrayDepth-First Search+2
Solve→
Word Search
36%
MediumM
36%
ArrayString+2
Solve→

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Split Array Largest Sum
36%
HardH
36%
ArrayBinary Search+3
Solve→
Longest Common Prefix
34%
EasyE
34%
StringTrie
Solve→
Dot Product of Two Sparse Vectors
33%
MediumM
33%
ArrayHash Table+2
Solve→
Design HashMap
32%
EasyE
32%
ArrayHash Table+3
Solve→
Climbing Stairs
32%
EasyE
32%
MathDynamic Programming+1
Solve→
Zero Array Transformation I
28%
MediumM
28%
ArrayPrefix Sum
Solve→
Nested List Weight Sum
21%
MediumM
21%
Depth-First SearchBreadth-First Search
Solve→

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Frequently Asked Questions

What LeetCode problems does Vanguard ask in interviews?

Vanguard commonly asks 32 coding problems in technical interviews, including Reveal Cards In Increasing Order, Closest Binary Search Tree Value, Add Two Integers. The difficulty breakdown is 11 Easy, 18 Medium, and 3 Hard problems.

How should I prepare for a Vanguard coding interview?

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

What is the difficulty level of Vanguard coding interviews?

Based on our data, Vanguard interviews include 11 Easy (34%), 18 Medium (56%), and 3 Hard (9%) problems.

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