Data Structures & Algorithms Interview Questions

Review this list of 336 Data Structures & Algorithms interview questions and answers verified by hiring managers and candidates.

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Given meetings with different conflicts and rooms, find a schedule that works.
8 months ago
Given an array 'nums' with n distinct numbers in the range [0, n], return the only number in the range that is missing from the array.
2 years ago2 answers
If given two strings, each containing a number larger than 32-bit, how do you add them and return the result as a string?
5 years ago1 answer
Given two strings (Word 1 and Word 2) and a list of valid words from a dictionary, return the minimum number of operations required to convert Word 1 to Word 2.
4 years ago11 answers
Return all unique substrings of a given string.
5 months ago
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Given a number of courses and a list of prerequisite pairs, return true or false depending on whether it is possible to finish all courses.
7 months ago
Write a function to check whether a string contains a substring.
2 years ago1 answer
Given an array of integers, print all subarrays that sum to zero.
5 years ago2 answers
01 Matrix
2 years ago1 answer
Explain how to design and implement a password checker based on specific requirements.
5 years ago2 answers
Implement a JavaScript function for Promise.all().
3 years ago1 answer
You are given m*n matrix, find if any row, column or diagonal has all boolean = True. Find for diagonals and anti diagonals at 45 degrees
a year ago
Solve an array problem where you are given two arrays and need to construct a new array by multiplying values across positions.
9 months ago
Find the minimum total cost to supply water to all the houses in a village. Has video answer
Given an array of strings, return groups of "buddy strings," where the strings have the same length and the distance between corresponding characters is the same.
7 months ago
Find the shortest subsequence of a cyclic string S that contains all characters of a pattern k.
2 years ago1 answer
Find the common ancestors in a tree. Has video answer
7 months ago
Explain the sort function.
3 years ago3 answers
List the Differences Between Two Strings
3 years ago2 answers
Find the lowest common ancestor (LCA) of two nodes in a binary tree.
+2a year ago9 answers

Showing 201-220 of 336

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Data Structures & Algorithms Interview Questions

Given meetings with different conflicts and rooms, find a schedule that works.

Given an array 'nums' with n distinct numbers in the range [0, n], return the only number in the range that is missing from the array.

If given two strings, each containing a number larger than 32-bit, how do you add them and return the result as a string?

Given two strings (Word 1 and Word 2) and a list of valid words from a dictionary, return the minimum number of operations required to convert Word 1 to Word 2.

Return all unique substrings of a given string.

Given a number of courses and a list of prerequisite pairs, return true or false depending on whether it is possible to finish all courses.

Write a function to check whether a string contains a substring.

Given an array of integers, print all subarrays that sum to zero.

01 Matrix

Explain how to design and implement a password checker based on specific requirements.

Implement a JavaScript function for Promise.all().

You are given m*n matrix, find if any row, column or diagonal has all boolean = True. Find for diagonals and anti diagonals at 45 degrees

Solve an array problem where you are given two arrays and need to construct a new array by multiplying values across positions.

Find the minimum total cost to supply water to all the houses in a village. Has video answer

Given an array of strings, return groups of "buddy strings," where the strings have the same length and the distance between corresponding characters is the same.

Find the shortest subsequence of a cyclic string S that contains all characters of a pattern k.

Find the common ancestors in a tree. Has video answer

Explain the sort function.

List the Differences Between Two Strings

Find the lowest common ancestor (LCA) of two nodes in a binary tree.

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