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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Given an integer array nums and an integer k, return true if nums has a subarray of at least two elements whose sum is a multiple of k. Has video answer
+62 years ago24 answers
Cyclic Sort
2 years ago
Implement DFS traversal.
a year ago
Longest Valid Parentheses
2 years ago1 answer
Design and implement an in-memory key-value store that supports set, transactional begin, commit, and abort operations. Has video answer
3 months ago1 answer
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Code an image-processing pipeline that reads per-image instruction files and applies ordered transformations (e.g., rotate, invert, crop, convert) to large sets of images of varying sizes across multiple folders.
10 months ago
Find the first missing positive number in an array.
2 years ago15 answers
Given n houses in a line with money in each, find the maximum amount a robber can steal, without stealing from two adjacent houses.
+42 months ago6 answers
Find the sum of all elements in a binary tree that fall within the range [low, high], where 'low' and 'high' are integers.
2 years ago11 answers
Tree Node. Has video answer
+35 months ago28 answers
Maximum Number of Visible Points
+1a month ago1 answer
Reverse a Sentence
+32 years ago41 answers
What's your approach to prompt engineering?
2 months ago
Rotate a 2D matrix.
10 months ago1 answer
Group anagrams
+142 months ago2 answers
Find the minimum characters to insert to make a string a palindrome.
9 months ago2 answers
Merge Intervals Has video answer
+132 months ago65 answers
Given a matrix with a rat, bread, cat, and obstacles, find a path from the rat to the bread that maximizes the minimum distance from cat.
8 months ago3 answers
Implement a GPU credit management system.
4 months ago
Find the longest common prefix given two integer arrays.
a year ago2 answers

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Software Engineer Coding Interview Questions

Given an integer array nums and an integer k, return true if nums has a subarray of at least two elements whose sum is a multiple of k. Has video answer

Cyclic Sort

Implement DFS traversal.

Longest Valid Parentheses

Design and implement an in-memory key-value store that supports set, transactional begin, commit, and abort operations. Has video answer

Code an image-processing pipeline that reads per-image instruction files and applies ordered transformations (e.g., rotate, invert, crop, convert) to large sets of images of varying sizes across multiple folders.

Find the first missing positive number in an array.

Given n houses in a line with money in each, find the maximum amount a robber can steal, without stealing from two adjacent houses.

Find the sum of all elements in a binary tree that fall within the range [low, high], where 'low' and 'high' are integers.

Tree Node. Has video answer

Maximum Number of Visible Points

Reverse a Sentence

What's your approach to prompt engineering?

Rotate a 2D matrix.

Group anagrams

Find the minimum characters to insert to make a string a palindrome.

Merge Intervals Has video answer

Given a matrix with a rat, bread, cat, and obstacles, find a path from the rat to the bread that maximizes the minimum distance from cat.

Implement a GPU credit management system.

Find the longest common prefix given two integer arrays.

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