Software Engineer Coding Interview Questions

Review this list of 323 Coding Software Engineer interview questions and answers verified by hiring managers and candidates.

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What are the different types of software testing?
2 years ago1 answer
Find the element at a given position in a sorted version of an unsorted array. Example: Input: {5,1,7,19,0,16}, k=3 Output: 5 (Explanation: Sorted array is {0,1,5,7,16,19}, and the 3rd positioned element is 5.)
5 years ago3 answers
Implement a card game with classes like car/card and player, including functionality like shuffling and assigning cards to players.
8 months ago
Define the scope and requirements for a snake_case to camelCase converter function.
6 months ago
Invert binary tree.
2 years ago
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Given a string that doesn't fit into a machine's memory, split it at each space and count the number of spaces.
3 years ago1 answer
How would you rebuild one of your projects in a lower-level language to make it faster?
a year ago
Determine if two words are sorted in lexicographic order.
3 years ago
Explain tic tac toe end games.
4 years ago
Implement a queue using stacks.
2 years ago1 answer
Given a log file with [timestamp, customer_id, webpage], determine the top 3 most frequently visited sequences of 3 webpages across all customers.
a year ago
Calculate the height of a binary tree.
2 years ago3 answers
Implement serialize(root) + deserialize(data) so the same tree comes back
4 months ago
Serialize and deserialize binary tree
2 years ago
Find the distance between two points in 3D space.
3 years ago
Abbreviate an array of strings.
3 years ago
Write a program to count the frequency of each character in a given text file.
7 years ago1 answer
Implement a string sorting algorithm, treating digits as numbers.
5 years ago1 answer
How would you efficiently sum up a massive number of integers?
2 years ago1 answer
Explain the filter function.
3 years ago1 answer

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Software Engineer Coding Interview Questions

What are the different types of software testing?

Find the element at a given position in a sorted version of an unsorted array. Example: Input: {5,1,7,19,0,16}, k=3 Output: 5 (Explanation: Sorted array is {0,1,5,7,16,19}, and the 3rd positioned element is 5.)

Implement a card game with classes like car/card and player, including functionality like shuffling and assigning cards to players.

Define the scope and requirements for a snake_case to camelCase converter function.

Invert binary tree.

Given a string that doesn't fit into a machine's memory, split it at each space and count the number of spaces.

How would you rebuild one of your projects in a lower-level language to make it faster?

Determine if two words are sorted in lexicographic order.

Explain tic tac toe end games.

Implement a queue using stacks.

Given a log file with [timestamp, customer_id, webpage], determine the top 3 most frequently visited sequences of 3 webpages across all customers.

Calculate the height of a binary tree.

Implement serialize(root) + deserialize(data) so the same tree comes back

Serialize and deserialize binary tree

Find the distance between two points in 3D space.

Abbreviate an array of strings.

Write a program to count the frequency of each character in a given text file.

Implement a string sorting algorithm, treating digits as numbers.

How would you efficiently sum up a massive number of integers?

Explain the filter function.

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