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Thermo Fisher Scientific LeetCode Interview Questions

Practice 50 real coding problems frequently asked in Thermo Fisher Scientific technical interviews. Master these questions to ace your next Thermo Fisher Scientific software engineering interview.

12 Easy
30 Medium
8 Hard

Top Topics at Thermo Fisher Scientific

ArrayHash TableStringSortingDepth-First Search

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Thermo Fisher Scientific Interview Problems

ProblemDifficultyDiffFrequencyTopicsAction
Subsets II
100%
MediumM
100%
ArrayBacktracking+1
Solve→
Binary Tree Right Side View
90%
MediumM
90%
TreeDepth-First Search+2
Solve→
Remove Duplicates from Sorted Array II
87%
MediumM
87%
ArrayTwo Pointers
Solve→
Roman to Integer
84%
EasyE
84%
Hash TableMath+1
Solve→
Number of Islands II
81%
HardH
81%
ArrayHash Table+1
Solve→
Subarrays with K Different Integers
81%
HardH
81%
ArrayHash Table+2
Solve→
All Nodes Distance K in Binary Tree
79%
MediumM
79%
Hash TableTree+3
Solve→
Alien Dictionary
78%
HardH
78%
ArrayString+4
Solve→
Adding Spaces to a String
78%
MediumM
78%
ArrayTwo Pointers+2
Solve→
Remove All Adjacent Duplicates In String
74%
EasyE
74%
StringStack
Solve→
Flip Columns For Maximum Number of Equal Rows
72%
MediumM
72%
ArrayHash Table+1
Solve→
Flatten Binary Tree to Linked List
71%
MediumM
71%
Linked ListStack+3
Solve→
Best Time to Buy and Sell Stock IV
69%
HardH
69%
ArrayDynamic Programming
Solve→
Create Hello World Function
67%
EasyE
67%
Solve→
Maximum Product Subarray
67%
MediumM
67%
ArrayDynamic Programming
Solve→
Zigzag Conversion
67%
MediumM
67%
String
Solve→
K Closest Points to Origin
64%
MediumM
64%
ArrayMath+5
Solve→
Length of Last Word
64%
EasyE
64%
String
Solve→
Bus Routes
62%
HardH
62%
ArrayHash Table+1
Solve→
Sqrt(x)
62%
EasyE
62%
MathBinary Search
Solve→
Recyclable and Low Fat Products
61%
EasyE
61%
Database
Solve→
Minimum Absolute Difference
61%
EasyE
61%
ArraySorting
Solve→
Zero Array Transformation I
58%
MediumM
58%
ArrayPrefix Sum
Solve→
Minimum Window Substring
55%
HardH
55%
Hash TableString+1
Solve→
Integer to Roman
54%
MediumM
54%
Hash TableMath+1
Solve→

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Maximum Number of Events That Can Be Attended
50%
MediumM
50%
ArrayGreedy+2
Solve→
Analyze User Website Visit Pattern
50%
MediumM
50%
ArrayHash Table+1
Solve→
Count Unhappy Friends
49%
MediumM
49%
ArraySimulation
Solve→
Kth Smallest Element in a Sorted Matrix
47%
MediumM
47%
ArrayBinary Search+3
Solve→
Design Snake Game
46%
MediumM
46%
ArrayHash Table+3
Solve→
Product of Array Except Self
44%
MediumM
44%
ArrayPrefix Sum
Solve→
Missing Ranges
39%
EasyE
39%
Array
Solve→
Accounts Merge
39%
MediumM
39%
ArrayHash Table+5
Solve→
Merge Sorted Array
38%
EasyE
38%
ArrayTwo Pointers+1
Solve→
Random Pick with Weight
37%
MediumM
37%
ArrayMath+3
Solve→
Jump Game II
34%
MediumM
34%
ArrayDynamic Programming+1
Solve→
Boundary of Binary Tree
33%
MediumM
33%
TreeDepth-First Search+1
Solve→
Range Sum of BST
33%
EasyE
33%
TreeDepth-First Search+2
Solve→
Container With Most Water
31%
MediumM
31%
ArrayTwo Pointers+1
Solve→
Word Break II
31%
HardH
31%
ArrayHash Table+5
Solve→
Friends Of Appropriate Ages
30%
MediumM
30%
ArrayTwo Pointers+2
Solve→
Add Two Integers
30%
EasyE
30%
Math
Solve→
Reveal Cards In Increasing Order
28%
MediumM
28%
ArrayQueue+2
Solve→
Generate Parentheses
28%
MediumM
28%
StringDynamic Programming+1
Solve→
Merge k Sorted Lists
26%
HardH
26%
Linked ListDivide and Conquer+2
Solve→
Zero Array Transformation III
26%
MediumM
26%
ArrayGreedy+3
Solve→
Diagonal Traverse
23%
MediumM
23%
ArrayMatrix+1
Solve→
Climbing Stairs
21%
EasyE
21%
MathDynamic Programming+1
Solve→
Remove Nth Node From End of List
20%
MediumM
20%
Linked ListTwo Pointers
Solve→
Maximize Amount After Two Days of Conversions
20%
MediumM
20%
ArrayString+3
Solve→

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Frequently Asked Questions

What LeetCode problems does Thermo Fisher Scientific ask in interviews?

Thermo Fisher Scientific commonly asks 50 coding problems in technical interviews, including Subsets II, Binary Tree Right Side View, Remove Duplicates from Sorted Array II. The difficulty breakdown is 12 Easy, 30 Medium, and 8 Hard problems.

How should I prepare for a Thermo Fisher Scientific coding interview?

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

What is the difficulty level of Thermo Fisher Scientific coding interviews?

Based on our data, Thermo Fisher Scientific interviews include 12 Easy (24%), 30 Medium (60%), and 8 Hard (16%) problems.

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