## What Is An Algorithm?

An algorithm is a set of step-by-step procedures, or a set of rules to follow, for completing a specific task or solving a particular problem. Algorithms are all around us. The recipe for baking a cake, the method we use to solve a long division problem, and the process of doing laundry are all examples of an algorithm. Here’s what baking a cake might look like, written out as a list of instructions, just like an algorithm:

1. Preheat the oven
2. Gather the ingredients
3. Measure out the ingredients
4. Mix together the ingredients to make the batter
5. Grease a pan
6. Pour the batter into the pan
7. Put the pan in the oven
8. Set a timer
9. When the timer goes off, take the pan out of the oven
10. Enjoy!

Algorithmic programming is all about writing a set of rules that instruct the computer how to perform a task. A computer program is essentially an algorithm that tells the computer what specific steps to execute, in what specific order, in order to carry out a specific task. Algorithms are written using particular syntax, depending on the programming language being used.

## Types of Algorithms

Algorithms are classified based on the concepts that they use to accomplish a task. While there are many types of algorithms, the most fundamental types of computer science algorithms are:

1. Divide and conquer algorithms – divide the problem into smaller subproblems of the same type; solve those smaller problems, and combine those solutions to solve the original problem.
2. Brute force algorithms – try all possible solutions until a satisfactory solution is found.
3. Randomized algorithms – use a random number at least once during the computation to find a solution to the problem.
4. Greedy algorithms – find an optimal solution at the local level with the intent of finding an optimal solution for the whole problem.
5. Recursive algorithms – solve the lowest and simplest version of a problem to then solve increasingly larger versions of the problem until the solution to the original problem is found.
6. Backtracking algorithms – divide the problem into subproblems, each which can be attempted to be solved; however, if the desired solution is not reached, move backwards in the problem until a path is found that moves it forward.
7. Dynamic programming algorithms – break a complex problem into a collection of simpler subproblems, then solve each of those subproblems only once, storing their solution for future use instead of re-computing their solutions.

### Example of an Algorithm

Solving a Rubik’s Cube

There are a number of different algorithms, from simple to very complicated, that exist for solving a Rubik’s cube. Below is just one simple algorithm. First, let’s specify a notation to use (similar to picking a programming language).

Each of the six faces of a Rubik’s cube can be represented by the first letter of their name:

• U – up
• D – down
• L – left
• R – right
• F – front
• B – back

Each face can be turned in three different ways/directions. Using U as an example, these are represented as:

• U – clockwise quarter-turn of the upper face
• U’ – counter-clockwise quarter-turn of the upper face
• U2 – half turn in either direction of the upper face

Now, let’s go through the steps in the algorithm to solve a Rubik’s Cube. Feel free to grab one of your own and follow along!

#### Step 1: The Cross

1. First, flip some edges so that there is a white cross on the upper face.
2. Apply the following turns: F, R’, D’, R, F2, R’, U, R, U’, R’, R2, L2, U2, R2, L2.
3. The cross is now solved.

#### Step 2: The White Corners

1. The edges on the white face are now complete, but the corners remain.
2. Depending on where the white-orange-green corner is in the puzzle, apply one of the following series of turns:
1. Bottom: R’, D’, R, D (repeat until the corner moves to its correct place)
2. Top: R’, D’, R, D (this moves the corner to the bottom; then, follow the above instructions)

#### Step 3: Middle Layer Edges

1. Flip the cube so that the white is on the bottom.
2. Look for an edge that is on the top face and doesn’t have yellow on it.
3. Perform a U-turn so that the color on the front face of the edge matches with the center.
4. Depending on the direction that the edge could go, apply one of the following series of turns:
1. Left: U’, L’, U, L, U, F, U’, F’
2. Right: U, R, U’, R’, U’, F’, U, F)

#### Step 4: Yellow Cross

1. Apply the following turns, until a yellow cross on the face appears with the yellow center: F, R, U, R’, U’, F’.
2. If there is an “L” shape, where the two yellow pieces showing are adjacent to each other, apply the following turns: F, U, R, U’, R’, F’.
3. If there is a “Line” shape, which is horizontal, apply the following turns: F, R, U, R’, U’, F’.

#### Step 5: Sune and Antisune

1. Look at the face with the yellow center.
2. Depending on the below contingencies, apply one of the following series of turns:
1. If there is only one oriented corner: R, U, R’, U, R, U2, R’ (repeat until the desired position is attained)
2. There is one oriented corner and one right-facing corner: U2, R, U2, R’, U’, R, U’, R’

#### Step 6: Finishing the puzzle

1. Look for sets of “headlights” (two stickers of the same color in the same row, separated by a sticker of a different color).
2. Depending on how many there are, apply one of the following series of turns:
1. If there are a set of headlights on each side: R, U’, R, U, R, U, R, U’, R’, U’, R2
2. Otherwise: R’, F, R’, B2, R, F’, R’, B2, R2

### Sorting Algorithms

A sorting algorithm is an algorithm that puts elements of a list in a certain order, usually in numerical or lexicographical order. Sorting is often an important first step in algorithms that solves more complex problems. There are a large number of sorting algorithms, each with their own benefits and costs. Below, we will focus on some of the more famous sorting algorithms.

1. Linear sort: Find the smallest element in the list to be sorted, add it to a new list, and remove it from the original list. Repeat this until the original list is empty.
2. Bubble sort: Compare the first two elements in the list, and if the first is greater than the second, swap them. Repeat this with every pair of adjacent elements in the list. Then, repeat this process until the list is fully sorted.
3. Insertion sort: Compare each element in the list to all the prior elements until a smaller element is found. Swap these two elements. Repeat this process until the list is fully sorted.

## Where Algorithms are Used in Computer Science?

Algorithms are used in every part of computer science. They form the field’s backbone. In computer science, an algorithm gives the computer a specific set of instructions, which allows the computer to do everything, be it running a calculator or running a rocket. Computer programs are, at their core, algorithms written in programming languages that the computer can understand. Computer algorithms play a big role in how social media works: which posts show up, which ads are seen, and so on. These decisions are all made by algorithms. Google’s programmers use algorithms to optimize searches, predict what users are going to type, and more. In problem-solving, a big part of computer programming is knowing how to formulate an algorithm.

## Why are Algorithms Important to Understand?

Algorithmic thinking, or the ability to define clear steps to solve a problem, is crucial in many different fields. Even if we’re not conscious of it, we use algorithms and algorithmic thinking all the time. Algorithmic thinking allows students to break down problems and conceptualize solutions in terms of discrete steps. Being able to understand and implement an algorithm requires students to practice structured thinking and reasoning abilities.

## 33 comentários em “What Are Algorithms & Why Are They Important”

1. I’m the owner of JustCBD Store brand (justcbdstore.com) and am planning to expand my wholesale side of business. It would be great if anybody at targetdomain can help me ! I thought that the best way to accomplish this would be to connect to vape shops and cbd stores. I was hoping if anyone could recommend a reliable site where I can get Vape Shop Business Marketing Data I am presently looking at creativebeartech.com, theeliquidboutique.co.uk and wowitloveithaveit.com. Not exactly sure which one would be the most ideal choice and would appreciate any advice on this. Or would it be simpler for me to scrape my own leads? Suggestions?

2. I’m the proprietor of JustCBD brand (justcbdstore.com) and I am currently looking to grow my wholesale side of company. It would be great if anybody at targetdomain can help me . I thought that the most effective way to do this would be to reach out to vape shops and cbd retailers. I was really hoping if someone could recommend a trustworthy web-site where I can buy CBD Shops B2B Data I am currently considering creativebeartech.com, theeliquidboutique.co.uk and wowitloveithaveit.com. Unsure which one would be the most suitable option and would appreciate any assistance on this. Or would it be simpler for me to scrape my own leads? Suggestions?

3. You’re so cool! I do not believe I’ve truly read through something like that before. So good to find another person with genuine thoughts on this subject matter. Really.. thank you for starting this up. This web site is something that is needed on the web, someone with a bit of originality!

4. Your style is so unique in comparison to other folks I’ve read stuff from. Many thanks for posting when you have the opportunity, Guess I’ll just bookmark this page.

5. This is the perfect webpage for everyone who hopes to understand this topic. You know a whole lot its almost tough to argue with you (not that I actually will need to…HaHa). You definitely put a fresh spin on a subject that’s been written about for a long time. Wonderful stuff, just great!

6. This site definitely has all of the information I needed concerning this subject and didn’t know who to ask.

7. You made some decent points there. I looked on the internet for additional information about the issue and found most people will go along with your views on this website.

8. Having read this I believed it was very informative. I appreciate you spending some time and energy to put this content together. I once again find myself spending a significant amount of time both reading and commenting. But so what, it was still worth it!

9. Good day! I simply want to offer you a huge thumbs up for your excellent information you’ve got right here on this post. I will be coming back to your site for more soon.

10. Spot on with this write-up, I truly believe this amazing site needs a lot more attention. I’ll probably be back again to read more, thanks for the info!

11. Hello there! This blog post couldn’t be written much better! Looking at this article reminds me of my previous roommate! He always kept talking about this. I am going to send this post to him. Fairly certain he will have a good read. Thank you for sharing!

12. I’m amazed, I have to admit. Seldom do I encounter a blog that’s equally educative and engaging, and let me tell you, you’ve hit the nail on the head. The issue is something which too few folks are speaking intelligently about. I’m very happy I found this during my search for something concerning this.

13. I blog quite often and I truly appreciate your information. This great article has truly peaked my interest. I’m going to take a note of your blog and keep checking for new details about once a week. I opted in for your Feed as well.

14. Hi, I do believe this is an excellent web site. I stumbledupon it 😉 I’m going to come back yet again since i have book-marked it. Money and freedom is the best way to change, may you be rich and continue to help other people.

15. Achieving your fitness goals doesn’t need a certified personal trainer or an expensive gym memberships, it is not hard to exercise at home. It’s easy to go down a training and fitness rabbit hole, however, when you’re looking for the best home exercise equipment to outfit your personal home gym.

16. This is a great tip particularly to those fresh to the blogosphere. Short but very precise info… Many thanks for sharing this one. A must read article!

17. Can I just say what a relief to find an individual who genuinely knows what they are discussing on the web. You certainly understand how to bring a problem to light and make it important. More people should check this out and understand this side of the story. I can’t believe you aren’t more popular since you most certainly possess the gift.

18. Pretty! This was an extremely wonderful article. Many thanks for providing these details.

19. You should be a part of a contest for one of the most useful sites online. I am going to highly recommend this web site!

20. Everyone loves it whenever people come together and share ideas. Great site, stick with it!

21. I have to thank you for the efforts you’ve put in penning this blog. I’m hoping to check out the same high-grade blog posts from you in the future as well. In fact, your creative writing abilities has encouraged me to get my very own blog now 😉

23. I’m extremely pleased to uncover this web site. I want to to thank you for your time for this particularly wonderful read!! I definitely savored every part of it and i also have you saved as a favorite to look at new things on your website.

24. Very good info. Lucky me I ran across your site by accident (stumbleupon). I’ve saved it for later!

25. You should take part in a contest for one of the finest blogs on the internet. I am going to highly recommend this web site!

26. That is a very good tip especially to those new to the blogosphere. Brief but very precise info… Appreciate your sharing this one. A must read post!

27. Everyone loves it when folks get together and share thoughts. Great site, stick with it!

28. Having read this I thought it was extremely informative. I appreciate you finding the time and energy to put this content together. I once again find myself spending a significant amount of time both reading and leaving comments. But so what, it was still worth it!

29. Good blog you’ve got here.. It’s difficult to find high quality writing like yours these days. I seriously appreciate people like you! Take care!!

30. Right now it appears like Movable Type is the
preferred blogging platform available right now. (from what I’ve read)
Is that what you’re using on your blog?

31. What a lovely idea for a post! London is such a great city but it can be so expensive so this is a great idea for those of us on a budget. I was in London at the weekend and it was sweltering! Thanks for joining us on #fortheloveofBLOG x