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Array Problems for the Day Before Your Coding Interview

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If you're preparing for a coding interview, you know that practicing your problem-solving skills is essential. One of the most common types of problems you'll encounter in an interview is array problems. Arrays are a fundamental data structure in computer science, and they're used in a wide variety of applications. Being able to solve array problems quickly and efficiently is a valuable skill for any programmer.

Array Problems for the day before your Coding Interview (Day before Coding Interview 8)

Array Problems for the day before your Coding Interview (Day before Coding Interview Book 8)

by Aditya Chatterjee

5 out of 5

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To help you prepare for your interview, we've compiled a list of some of the most common array problems. These problems are designed to test your understanding of arrays, your problem-solving skills, and your ability to think on your feet. We recommend that you try to solve these problems on your own before looking at the solutions. However, if you get stuck, don't be afraid to refer to the solutions for help.

Problem 1: Find the Sum of an Array

Given an array of integers, find the sum of all the elements in the array.

Example:

Input: [1, 2, 3, 4, 5] Output: 15

Solution:

function findSum(arr){let sum = 0; for (let i = 0; i <h2>Problem 2: Find the Maximum Value in an Array</h2> <p>Given an array of integers, find the maximum value in the array.</p> <p><strong>Example:</strong></p> <pre> Input: [1, 2, 3, 4, 5] Output: 5

Solution:

function findMax(arr){let max = arr[0]; for (let i = 1; i max){max = arr[i]; }}return max; }

Problem 3: Find the Minimum Value in an Array

Given an array of integers, find the minimum value in the array.

Example:

Input: [1, 2, 3, 4, 5] Output: 1

Solution:

function findMin(arr){let min = arr[0]; for (let i = 1; i <h2>Problem 4: Find the Average Value in an Array</h2> <p>Given an array of integers, find the average value in the array.</p> <p><strong>Example:</strong></p> <pre> Input: [1, 2, 3, 4, 5] Output: 3

Solution:

function findAverage(arr){let sum = 0; for (let i = 0; i <h2>Problem 5: Reverse an Array</h2> <p>Given an array of integers, reverse the order of the elements in the array.</p> <p><strong>Example:</strong></p> <pre> Input: [1, 2, 3, 4, 5] Output: [5, 4, 3, 2, 1]

Solution:

function reverseArray(arr){let left = 0; let right = arr.length - 1; while (left <h2>Problem 6: Find the Intersection of Two Arrays</h2> <p>Given two arrays of in</p>

Array Problems for the day before your Coding Interview (Day before Coding Interview Book 8)

by Aditya Chatterjee

5 out of 5