20 Coding Problems for Beginners | Codeyoung

Introduction

​Coding challenges are practical because they help you practice your abilities on a manageable issue and almost seldom demand you to design an entire program, so you can typically finish them quickly. Basic coding challenges are a fantastic way to hone your abilities or prevent rust from setting in.

You will learn a lot from creating comprehensive applications, but they can take some time to complete. On the other hand, coding problems for beginners can be finished in a single evening and will introduce you to fresh programming ideas and algorithms. Completing a few can help you get ready for a job interview because they are a common component of coding interviews. Quickly solving coding challenges and to a solution are a few of the benefits of Learning Coding

​Most coding interviews also include basic coding challenges. Although hiring managers may notice the talents listed on your resume and that you speak like a programmer, they still want to know if you can write code. They can evaluate your abilities and ensure you are capable of the job by asking you to complete a few coding problems.

20 Coding problems for beginners are listed below:

1) General programming

​It is best to pick one of the coding problems for beginners that push your abilities but isn't totally out of your league. Even though most code challenges are limited in scope, they still need to include a complex solution. To help you select the right coding task for your proficiency level, we've ranked a few problems by their complexity below.

2) For Java developers, Data Structures and Algorithms

Deep Dive Using Java Discover the differences between arrays, linked lists, trees, hash tables, stacks, queues, heaps, sort algorithms, and search algorithms. 

For Python learners: Algorithms and Data Structures in Python instruction manual for constructing the most recent algorithms from scratch, including sorting, arrays, linked lists, and graph algorithms with basic coding challenges to enhance your understanding.

3) The digits 1 through 20 have to be printed

Print the numbers 1 through 20 with each number on a separate line as shown below. This is one of the basic coding challenges often encountered when learning to handle loops. Additionally, the components of the user-entered birth date can be added up. This kind of task is common among coding problems for beginners, where simple arithmetic and input handling are practized.

Constraint: The calculation must be done using the software itself. Don't add the numbers outside and enter the code.

4) Coding problems in web development

​Create a website in honour of your favourite band. Making a website for your favourite musician can be a lot of fun. Start by merely utilizing static HTML, and if you're looking for a great way to tackle basic coding challenges, add CSS and JavaScript. Then, for bonus points, construct it using an interactive front-end framework like React.

5) Create a magazine layout by combining Semantic HTML and CSS Flexbox. ​

Often, it is difficult to duplicate a design exactly. Your ability to construct a design from scratch using HTML and CSS will be tested for beginners in such coding problems. You will perform this daily once you start working as a web developer.

6) Construct a static portfolio website from any of the kid's coding language.

You will have proven your web-building abilities if you complete the first two of the challenges listed here. So why not go one step further and create a portfolio website to showcase those skills to the public or a future employer? You will accomplish that with the help of this task. In addition to HTML and CSS, JavaScript is also an option.

7) Test hours to minutes

One of the most frequently asked coding problems for beginners. You requested the user to fill up the date fields there. What if someone types 35 as the date or 18 as the month? As a result, you must verify and examine the user-entered values. Only process the date total if the user has provided accurate values for each date component. The number of days in each month should be taken into account when verifying the product.

8) Increase your stock trading profits.

This question was asked during a Google interview to assess your ability to analyse financial data. The task has three levels: 

Given the stock's daily values, write a program to determine how you can profit the most from a single buy-sell-trade. 

Intermediate: Create a program that will determine how you can profit the maximum from a combination of buy-sell trades given the daily prices of a stock over n days. 

Hard: Complete the elementary and intermediate algorithms as quickly as possible.

9) Creating a Mario Pyramid

If you've ever played the Mario game, you've probably encountered this Pyramid pattern. In Havi Code, the code to create this pattern may be written. You could start by creating the pattern on graph or grid paper. Put the dots in the proper places. You can properly set up the algorithm using this advice.

10) The Educative Team created Data Structures in Java

​This is an interview refresher to review key Data Structure and algorithm topics in Java. To help readers become well-equipped, this course thoroughly examines all the main data structures' basic coding challenges and offers implementation-level information in Java.

11) Pattern for coding problems

​This is comparable to the meta course for coding interviews, which teaches candidates how to use patterns to solve certain coding challenges rather than how to solve coding difficulties in general.

12) Your mass (in scientific terms) about the sun and various planets.

Are you 55 kilogrammes? On the planet, that is. Your weight will vary if you travel to a different planet without losing any of your current pounds. The matrix of each planet's relative surface gravity is shown below. Relative refers to their position on Earth. All you have to do to determine your weight on a planet is multiply it by the gravity value of that planet.

Next create a program that asks the user for their weight before displaying it on the sun, other planets, and other celestial bodies.

13) Reverse the digits

Create a program that flips the number the user entered. In this application, you will utilize the prompt command to ask the user to enter the number first. Reverse the number after storing it in a variable, then print the result.

To address this issue, utilize the round down, reminder, and repeat while commands. We have created a worksheet to assist you in comprehending the mathematics involved in reversing a number. Try it, and you'll be able to run the application more effectively.

14) Find the character's frequency in a string by counting its occurrences.

The count will be updated anytime that character is found by iteratively looping through the string and looking for it each time.

If int count = 0; char search = 'a'; for (int i = 0; i < length; i++) { if (str.charAt(i) == search) { count++; } } System.out.println(count);

15) Print two integers with odd digits in between

In such coding problems for kids, the start and finish ranges are two values the user must first enter. Print every odd number between these two integers. Only one print command can print each number in a separate line.

16) How to determine whether the two strings given are anagrams or not?

If two strings have the same set of characters in a different order, they are anagrams. Create a boolean variable to indicate if the two strings at the end are anagrams or not. First, make sure that the strings have the same length; if they are not, they cannot be anagrams. Sort the character arrays you created after converting both strings to strings. Verify the equality of the sorted arrays. Print anagrams if they are equivalent; if not, do not print anagrams.

17) Average of the provided numbers

Inquire as to how many integers the user wants to average. then inquire about the same number count. Calculate the average of the entered numbers and display the results.

We have created a worksheet to assist you in comprehending the mathematics involved in averaging the numbers. It is one of the common coding problems for kids.

18) How can you figure out how many vowels and consonants there are in a string?

Whenever the letter is determined to be a vowel, use the if condition to add one to the vowel variable. In any other case, raise the consonant variable. The values for the vowel and consonant counts should be printed.

19) How can two numbers be switched without requiring a third variable?

Create two variables, then give them initial values. Add the two integers together to get b. Then switch a by deducting the sum (b) from a. Finally, swap b by subtracting a from the sum (b).

20) How would you carry out the algorithm for insertion sort?

In one of these coding problems for kids, we consider the array's initial element to be sorted. The key stores the second component separately. The top two items are then sorted. The third element can then be used to compare with the ones to its left. Up until the point where we sort the array, this procedure will continue.

Conclusion:

The advantages of coding problems for kids can be very beneficial to kids. By learning how to code for beginners, your child can pursue a profession as a programmer or coder because it will provide you with the information and experience you require.

Online coding classes for kids are one of the best ways to get a feel for a new programming language. Codeyoung can assist you in learning some of the basic syntaxes of a language and how to use them.

Students can learn industry-standard languages like Java and Python in a real-world coding environment provided by the curriculum, which goes beyond drag-and-drop block coding and coding problems for beginners on various levels.

The best coding lessons for kids are offered by STEM.ORG, which confirms that the courses are STEM-aligned. An example of peer-to-peer learning is a children's coding class, in which pupils teach their peers new information. SANDBOX is a community-based coding environment where you may network with others while learning to code. The opportunity to interact with children from more than 10 different countries is once in a lifetime. Codeyoung holds coding contests such as hackathons to solve coding problems for beginners and coders of the week.