Software Engineer Coding Interview Questions

Review this list of 295 Coding Software Engineer interview questions and answers verified by hiring managers and candidates.

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Given a fully or partially attempted 9x9 Sudoku board, determine if it is a valid solution.
4 months ago
Implement a doubly linked list.
4 months ago1 answer
How would you code an app that displays the weekly lunch menu?
2 years ago
Explain the solution for Leetcode problem 1010: Pairs of Songs With Total Durations Divisible by 60.
4 years ago
Find the k-th smallest and k-th largest element in a binary search tree (BST).
a year ago1 answer
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Find the maximum subarray product
a year ago2 answers
Implement x to the power of n without using any built-in library.
6 months ago
Given a binary tree, find the shortest path from the root to a leaf.
4 months ago
Implement a method to convert an integer to a string of bytes without using built-in helper functions.
4 months ago
Implement Markov chain.
2 months ago
Given arrays of varying lengths, how would you pad them efficiently?
8 months ago
Print all combinations of numbers from 1 to n that sum to n.
+22 years ago2 answers
Given an array, print the Next Greater Element (NGE) for each element. The NGE for an element x is the first greater element on the right side of x in the array, or -1 if none exists.
4 years ago3 answers
Can Jump - Given an array of non-negative integers, you're initially at the first index. Each element represents your maximum jump length at that position. Determine if you can reach the last index.
a year ago
Given a string S, determine if it can be converted into a palindrome by making at most one swap of two characters.
2 years ago
Explain the map function.
3 years ago2 answers
What are the different types of software testing?
2 years ago1 answer
Given an array representing the height of buildings from a sea beach, return an array of heights of the buildings that have a sea view.
5 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.)
4 years ago3 answers
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

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Software Engineer Coding Interview Questions

Given a fully or partially attempted 9x9 Sudoku board, determine if it is a valid solution.

Implement a doubly linked list.

How would you code an app that displays the weekly lunch menu?

Explain the solution for Leetcode problem 1010: Pairs of Songs With Total Durations Divisible by 60.

Find the k-th smallest and k-th largest element in a binary search tree (BST).

Find the maximum subarray product

Implement x to the power of n without using any built-in library.

Given a binary tree, find the shortest path from the root to a leaf.

Implement a method to convert an integer to a string of bytes without using built-in helper functions.

Implement Markov chain.

Given arrays of varying lengths, how would you pad them efficiently?

Print all combinations of numbers from 1 to n that sum to n.

Given an array, print the Next Greater Element (NGE) for each element. The NGE for an element x is the first greater element on the right side of x in the array, or -1 if none exists.

Can Jump - Given an array of non-negative integers, you're initially at the first index. Each element represents your maximum jump length at that position. Determine if you can reach the last index.

Given a string S, determine if it can be converted into a palindrome by making at most one swap of two characters.

Explain the map function.

What are the different types of software testing?

Given an array representing the height of buildings from a sea beach, return an array of heights of the buildings that have a sea view.

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.)

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

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