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Fiserv LeetCode Interview Questions

Practice 23 real coding problems frequently asked in Fiserv technical interviews. Master these questions to ace your next Fiserv software engineering interview.

2 Easy
20 Medium
1 Hard

Top Topics at Fiserv

ArrayBinary SearchHash TableDynamic ProgrammingString

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Fiserv Interview Problems

ProblemDifficultyDiffFrequencyTopicsAction
Minimum Array Sum
100%
MediumM
100%
ArrayDynamic Programming
Solve→
Friends Of Appropriate Ages
92%
MediumM
92%
ArrayTwo Pointers+2
Solve→
Custom Sort String
81%
MediumM
81%
Hash TableString+1
Solve→
Subarray Sum Equals K
74%
MediumM
74%
ArrayHash Table+1
Solve→
Spiral Matrix
72%
MediumM
72%
ArrayMatrix+1
Solve→
Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit
61%
MediumM
61%
ArrayQueue+4
Solve→
Minimum Limit of Balls in a Bag
61%
MediumM
61%
ArrayBinary Search
Solve→
Best Time to Buy and Sell Stock IV
53%
HardH
53%
ArrayDynamic Programming
Solve→
Decode String
52%
MediumM
52%
StringStack+1
Solve→
K-diff Pairs in an Array
52%
MediumM
52%
ArrayHash Table+3
Solve→
Remove Duplicates from Sorted Array
51%
EasyE
51%
ArrayTwo Pointers
Solve→
Word Pattern II
51%
MediumM
51%
Hash TableString+1
Solve→
Longest Increasing Subsequence
47%
MediumM
47%
ArrayBinary Search+1
Solve→
Maximum Beauty of an Array After Applying Operation
45%
MediumM
45%
ArrayBinary Search+2
Solve→
Word Break
44%
MediumM
44%
ArrayHash Table+4
Solve→
Insert into a Sorted Circular Linked List
43%
MediumM
43%
Linked List
Solve→
Find Leaves of Binary Tree
40%
MediumM
40%
TreeDepth-First Search+1
Solve→
Pow(x, n)
33%
MediumM
33%
MathRecursion
Solve→
Remove All Occurrences of a Substring
28%
MediumM
28%
StringStack+1
Solve→
Logger Rate Limiter
26%
EasyE
26%
Hash TableDesign+1
Solve→
Koko Eating Bananas
25%
MediumM
25%
ArrayBinary Search
Solve→
Maximum Sum Circular Subarray
25%
MediumM
25%
ArrayDivide and Conquer+3
Solve→
Combination Sum
23%
MediumM
23%
ArrayBacktracking
Solve→

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Frequently Asked Questions

What LeetCode problems does Fiserv ask in interviews?

Fiserv commonly asks 23 coding problems in technical interviews, including Minimum Array Sum, Friends Of Appropriate Ages, Custom Sort String. The difficulty breakdown is 2 Easy, 20 Medium, and 1 Hard problems.

How should I prepare for a Fiserv coding interview?

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

What is the difficulty level of Fiserv coding interviews?

Based on our data, Fiserv interviews include 2 Easy (9%), 20 Medium (87%), and 1 Hard (4%) problems.

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