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Fis LeetCode Interview Questions

Practice 35 real coding problems frequently asked in Fis technical interviews. Master these questions to ace your next Fis software engineering interview.

10 Easy
21 Medium
4 Hard

Top Topics at Fis

ArrayHash TableStringTwo PointersBreadth-First Search

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Fis Interview Problems

ProblemDifficultyDiffFrequencyTopicsAction
Same Tree
100%
EasyE
100%
TreeDepth-First Search+2
Solve→
Remove Duplicates from Sorted Array II
97%
MediumM
97%
ArrayTwo Pointers
Solve→
Minimum Window Substring
90%
HardH
90%
Hash TableString+1
Solve→
Remove Duplicates from Sorted Array
86%
EasyE
86%
ArrayTwo Pointers
Solve→
Coin Change
83%
MediumM
83%
ArrayDynamic Programming+1
Solve→
Simplify Path
74%
MediumM
74%
StringStack
Solve→
Reverse Integer
69%
MediumM
69%
Math
Solve→
Binary Tree Zigzag Level Order Traversal
67%
MediumM
67%
TreeBreadth-First Search+1
Solve→
Squares of a Sorted Array
67%
EasyE
67%
ArrayTwo Pointers+1
Solve→
Word Ladder II
67%
HardH
67%
Hash TableString+2
Solve→
Flatten Binary Tree to Linked List
65%
MediumM
65%
Linked ListStack+3
Solve→
Check If N and Its Double Exist
63%
EasyE
63%
ArrayHash Table+3
Solve→
Integer to Roman
62%
MediumM
62%
Hash TableMath+1
Solve→
Kth Largest Element in an Array
58%
MediumM
58%
ArrayDivide and Conquer+3
Solve→
Maximum Nesting Depth of the Parentheses
56%
EasyE
56%
StringStack
Solve→
Minimum Operations to Make Character Frequencies Equal
55%
HardH
55%
Hash TableString+3
Solve→
Maximum Number of Events That Can Be Attended
55%
MediumM
55%
ArrayGreedy+2
Solve→
Ways to Make a Fair Array
55%
MediumM
55%
ArrayPrefix Sum
Solve→
Adding Spaces to a String
55%
MediumM
55%
ArrayTwo Pointers+2
Solve→
Two Sum
54%
EasyE
54%
ArrayHash Table
Solve→
Boundary of Binary Tree
53%
MediumM
53%
TreeDepth-First Search+1
Solve→
Evaluate Division
52%
MediumM
52%
ArrayString+5
Solve→
Lowest Common Ancestor of a Binary Tree
49%
MediumM
49%
TreeDepth-First Search+1
Solve→
Shortest Path in Binary Matrix
46%
MediumM
46%
ArrayBreadth-First Search+1
Solve→
Dot Product of Two Sparse Vectors
43%
MediumM
43%
ArrayHash Table+2
Solve→

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Valid Parentheses
42%
EasyE
42%
StringStack
Solve→
Zero Array Transformation III
38%
MediumM
38%
ArrayGreedy+3
Solve→
Recyclable and Low Fat Products
36%
EasyE
36%
Database
Solve→
Minimum Path Sum
34%
MediumM
34%
ArrayDynamic Programming+1
Solve→
Continuous Subarrays
34%
MediumM
34%
ArrayQueue+4
Solve→
Design an Array Statistics Tracker
33%
HardH
33%
Hash TableBinary Search+5
Solve→
K-diff Pairs in an Array
33%
MediumM
33%
ArrayHash Table+3
Solve→
Min Stack
31%
MediumM
31%
StackDesign
Solve→
Implement Queue using Stacks
28%
EasyE
28%
StackDesign+1
Solve→
Take Gifts From the Richest Pile
28%
EasyE
28%
ArrayHeap (Priority Queue)+1
Solve→

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Frequently Asked Questions

What LeetCode problems does Fis ask in interviews?

Fis commonly asks 35 coding problems in technical interviews, including Same Tree, Remove Duplicates from Sorted Array II, Minimum Window Substring. The difficulty breakdown is 10 Easy, 21 Medium, and 4 Hard problems.

How should I prepare for a Fis coding interview?

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

What is the difficulty level of Fis coding interviews?

Based on our data, Fis interviews include 10 Easy (29%), 21 Medium (60%), and 4 Hard (11%) problems.

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