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Table of contents
1.
Introduction
2.
More about Coderbyte
3.
Coderbyte Challenges
3.1.
Fizz Buzz
3.2.
Two Sum Problem 
3.3.
Remove Set of Characters from a String
3.4.
Check if Valid Number of Parenthesis
3.5.
First Reverse
3.6.
Find Intersection
4.
Programming Aptitude Questions
4.1.
1. How to check if a number is an integer?
4.2.
2. Which function will allow you to do var?
4.3.
3. Write a program for LargestFour.
4.4.
4. What will be the output of this program (prg_1.c)? 
4.5.
5. Consider the example and write the correct statement to start the thread.
5.
Tips for Acing the Coderbyte Assessment
6.
Frequently Asked Questions
6.1.
What is a Coderbyte test? 
6.2.
What is Coderbyte used for?
6.3.
How does Coderbyte detect cheating? 
6.4.
Does Coderbyte have camera on?
6.5.
How do I pass Coderbyte assessment?
7.
Conclusion
Last Updated: Mar 27, 2024
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A Guide to Coderbyte Challenges, Questions and Solutions

Author Mehak Goel
3 upvotes
Create a resume that lands you SDE interviews at MAANG
Speaker
Anubhav Sinha
SDE-2 @
12 Jun, 2024 @ 01:30 PM

Introduction

Coderbyte is a web application that allows you to practice and enhance your coding abilities. They provide various coding challenges and web development courses to assist you in preparing for future job interviews. Many of the daily functions you need are available via Coderbyte, which are packaged in a contemporary, self-service platform like coding programs for placements, Coderbyte assessment answers, and help with off-campus placements.

Let us know more about Coderbyte and some of its challenges in detail.

Coderbyte

More about Coderbyte

Despite being the market’s newest entry, Coderbyte has expanded quickly and currently has 1,000+ customers, including some of the biggest IT companies. Coderbyte offers a real-world challenge library and feature set for code screening and more sophisticated methods to cheating detection and the ability to screen an infinite number of applicants for pricing less than 90% than the rest of the industry and gives the option for monthly subscriptions.

Coderbyte improves your coding skills by providing algorithm, front-end, back-end, and database challenges, automated grading with Big-O analysis, and over three million solutions. It also helps you ace your interviews by giving access to real-world interview kits, expert videos and solutions, and career resources and partners. Because of its collection of interview prep tasks, Coderbyte is recommended by the best coding bootcamps and employers.

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Coderbyte Challenges

Coderbyte offers 300+ Coderbyte Challenges that you may solve in an online editor using ten different programming languages. Then you may access official solutions, over 1.5 million user solutions, and read articles on how to tackle the problems effectively.

The Coderbyte challenges are divided into three difficulties – easy, medium, hard. Coderbyte challenges can be sorted by a list of companies like Google, Facebook, Amazon, and Microsoft. Here are some of the Coderbyte assessment questions with Coderbyte solutions that you can practice.

Fizz Buzz

Question: Print all of the numbers from 1 to 100. However, for any number divisible by three, print the word “Fizz,” for any number divisible by five, print the word “Buzz,” and for any number divisible by both three and five, print the word “FizzBuzz.”

Coderbyte Python Code:

def fizzbuzz(n):
 # we will store the resulting numbers within an array
 result = []
 # loop from 1 to n
 for i in range(1, n + 1):
 add = ''
 # check if there is a remainder when dividing by 3, if not
 # then we know this number is divisible by 3
 if i % 3 == 0:
 add += 'Fizz'
 # check if divisible by 5
 if i % 5 == 0:
 add += 'Buzz'
 # not divisible by either 3 or 5
 if add == '':
 result.append(i)
 else:
 result.append(add)
 return result

Two Sum Problem 

Question: An array and a number A is given. Determine if any two numbers within the array sum to A.

Coderbyte Python Code:

def twoSum(arr, A):
 hashTable = {}
 # check each element in array
 for i in range(0, len(arr)):
 # calculate A minus current element
 sumMinusElement = A - arr[i]
 # check if this number exists in hash table
 if sumMinusElement in hashTable:
 return True
 # add the current number to the hash table
 hashTable[arr[i]] = True
 return False

Remove Set of Characters from a String

Question: An array of characters and a string B is given. Write a function to return the string B with all the characters from the array removed.

Coderbyte Python Code:

def removeChars(arr, string):
 # store characters of arr in a hash table
 hashTable = {}
 for c in arr:
 hashTable[c] = True
 # loop through the string and check if the character exists in
 # the hash table, if so, do not add it to the result string
 result = ''
 for c in string:
 if c not in hashTable:
 result += c
 return result
# usage
print removeChars(['h', 'e', 'w', 'o'], 'hello world') # => "ll rld"

Check if Valid Number of Parenthesis

Question: You are given a string with the symbols ( and ), and you need to write a function that will determine if the parenthesis are correctly nested in the string, which means every opening ( has a closing ).

Python Code:

def matchingParens(string):
counter = 0
for c in string:
if c == '(':
counter +=1r
elif c == ')':
counter-=1
if counter ==0:
return True 
else:
return False

First Reverse

Question: The challenge here is to reverse a given string. The string can consist of whitespace and special symbols.

Python Code:

def FirstReverse(strParam):

    # code goes here
    strParam = strParam[::-1]
    return strParam


# keep this function call here
print(FirstReverse(input()))

Find Intersection

Question: Given an array of strings, where each string is a sorted list of numbers separated by commas. Return a comma-separated string of numbers common in both the strings of the array.

Python Code:

def FindIntersection(strArr):
  
    # converting strings to lists of int
    len1 = strArr[0].replace(" ", "").split(",")
    len2 = strArr[1].replace(" ", "").split(",")

    # finding the common numbers
    temp = set(len2) 
    len = [i for i in len1 if i in temp]

    # convert back to string
    if len:
        return ",".join(len)
    else:
        return "false"

# keep this function call here
print(FindIntersection(input()))

 

Bracket Matcher, Tree Constructor, Longest Word, and Questions Marks are some other prevalent Coderbyte challenges.

Programming Aptitude Questions

While Coderbyte provides all the resources mentioned above, it also offers interview kits for Google kickstart, TCS CodeVita, TCS iBegin, etc. Apart from practising Coderbyte questions, you should also practice some programming aptitude questions.

1. How to check if a number is an integer?

To determine if a number is a decimal or an integer, divide it by one and look for a remainder.

function isInt(num) {
  return num % 1 === 0;
}

console.log(isInt(4)); // true
console.log(isInt(12.2)); // false
console.log(isInt(0.3)); // false

2. Which function will allow you to do var?

addSix = createBase(6);
addSix(10); // returns 16
addSix(21); // returns 27

Answer:

function createBase(baseNumber) {
  return function(N) {
    // we are referencing baseNumber here even though it was declared
    // outside of this function. Closures allow us to do this in JavaScript
    return baseNumber + N;
  }
}

var addSix = createBase(6);
addSix(10);
addSix(21);

3. Write a program for LargestFour.

To find the Largest of Four numbers, we can use the inbuilt max() function in Python.

Python Code:

numbers = []
for i in range(4):
   number = int(input("Please enter four numbers. Enter 0 to finish.: "))
   if number == 0:
       break
   numbers.append(number)

print("maximum of the given four number {} is {}".format(numbers,max(numbers)))


Here, we will iterate four times to input four number and then use the max function to find the largest of the given four numbers.

4. What will be the output of this program (prg_1.c)? 

If input command is C:\TC\BIN>prg_1 includehelp.com C C++ Java
#include <stdio.h>
int main(int argc,char* argv[])
{
    printf("%d",argc);
    return 0;
}


The first argument of the main argc includes the total number of arguments provided by the command prompt, including the command name; the total number of arguments in this command is 5.

5. Consider the example and write the correct statement to start the thread.

public class ThreadEx extends Thread
{
    public void run()
    {
        System.out.println("Running...");
    }  
     
    public static void main(String args[])
    {
        ThreadEx T1=new ThreadEx();  
        __________ /*start thread*/
    }  
}  


Answer: T1.start();

The start() method initiates thread execution; after thread execution has begun, the Java Virtual Machine invokes the run() method.

Tips for Acing the Coderbyte Assessment

In Coderbyte, Assessment consists of questions and challenges that a candidate has to answer independently. The assessment is recorded in an online environment, or it's unrecorded in their own environment. They just have to upload after the completion. Some of the tips to ace Coderbyte assessment are as follows:

  • Understanding Job Description: Our step is to review the job description properly as to which tech stack the company is using and what is expected in the role. If we focus on the technical requirement it will help us to ace assessment easily.
     
  • Fundamental Concept: We must have a clear understanding of the fundamental concepts. The assessment mainly focuses on our fundamental knowledge or capabilities. Ensuring that we have a strong understanding of the needed technical skills will help us in assessment.
     
  • Practice: For cracking any assessment, we are required to practice as much as we can. Practice helps us improve our concepts, manage time, and make us confident. Try to solve as many questions as you can.
     
  • Manage Time: As we know, every assessment has a certain time limit, so we have to practice so that we are confident enough to solve questions in that time only. This helps us handle the pressure of time as well.

Frequently Asked Questions

What is a Coderbyte test? 

The Coderbyte test consists of challenges that a candidate can answer. The challenge can either be proctored or un-proctored. The candidate can choose the assessment to be timed or untimed and also choose the grading to be manual or automated.

What is Coderbyte used for?

Coderbyte is a platform provides users to sharpen their coding skills. The web application offers a variety of coding challenges and courses on web development. The platform suits all passionate coders looking for one place to practice and improve.

How does Coderbyte detect cheating? 

Coderbyte has several measures to detect cheating. It detects if a candidate copies and pastes some code in their code editor. Coderbyte detects tab switching during an assessment. It also checks for AI-generated texts and plagiarism from other online sources.

Does Coderbyte have camera on?

Within the assessment in Coderbytes, the candidates are provided with both the options to record a video or to submit a video. In case of recording video, the camera will be on, and in case of submitting video, the camera will be off.

How do I pass Coderbyte assessment?

To pass a Coderbyte assessment, practice coding problems regularly, understand fundamental algorithms and data structures, read the instructions carefully, write clean and efficient code, test your solutions thoroughly, and manage your time effectively during the assessment.

Conclusion

This article provided A Guide to Coderbyte Challenges, Questions, and Solutions. We started with the introduction, What Coderbyte is, Coderbte challenges and some of the Aptitude Questions mostly asked. We hope that we have enhanced your knowledge of Coderbyte Challenges, Questions, and Solutions. You can also consider our Aptitude Course to give your career an edge over others.

Happy Learning!

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