How to Write Algorithms in a Programming Language

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An algorithm is a series of steps designed to solve a problem or complete a task. Algorithms are usually written as pseudocode (pseudocode), or a combination of spoken language and one or more programming languages to write a program. This article will show you how to create a complete algorithm to help you build your own application.

Table of Contents

Steps

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Specifies the output of the code. What problem do you want to solve or what task do you want to accomplish? After thinking of the outcome you want to achieve, you can determine the steps to take.

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Determine the starting point. Figuring out the starting and ending points is an important step to help you list the steps of the process. To determine a starting point, you need to answer the following questions: ^[1]

• What is the available data/input?
• Where is that data?
• What formulas are applicable to the existing problem?
• What rules are appropriate for the available data?
• How are data values linked?

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Find the end of the algorithm. Similar to the starting point, you can find the end of the algorithm by focusing on the following questions:

• What can we learn from this process?
• What changed from start to finish?
• What will be added or deprecated?

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List the steps from start to finish. Start with big steps. A real-life example is that you want to eat lasagna for the evening. After determining the starting point is to find the recipe, and as a result you can eat delicious lasagna at 7pm. The steps are as follows:

• Search for recipes online.
• Find ingredients available in the kitchen.
• Make a list of ingredients that you need to buy from the store.
• Buy the missing ingredients.
• Back home.
• Prepare the lasagna.
• Remove the lasagna from the oven.

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Determine how to complete each step. Now that you have a detailed step-by-step plan, it’s time to think about how to code each step. What language will you use? What resources are available? What is the most efficient way to complete each step in that language? Add those snippets to the algorithm. Expand each step until you have a complete process.

• For example, the first step in the lasagna algorithm is Find the recipe online . However, what steps does this search involve? Please list specifically. For example:
  • Open Computer.
    • Make sure the computer is connected to the internet. Connect to the internet if the computer does not have a network.
  • Open a web browser.
  • Enter search keywords.
  • Click the recipe path.
  • See if the formula meets your needs.
    • Filter out non-vegetarian recipes.
    • Make sure the recipe makes at least 5 servings.
  • Repeat a few of these steps until you find the right recipe.
• Consider the resources you have at your disposal, such as the capacity of the system you use to develop the program. In the case of lasagna, let’s assume that the person making the lasagna knows how to search the internet, use the oven, etc.

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Review the algorithm. Now that you’ve written the algorithm, it’s time to evaluate the process. Your algorithm is designed to do a specific thing, and you need it to start writing programs. Answer the following questions, and address each as needed: ^[2]

• Does the algorithm solve the problem/complete the task?
• Are input and output information well defined?
• Do goals need to be redefined to be more inclusive? Or more specifically?
• Can any steps be simplified?
• Does the algorithm give you correct results?

Advice

• Refer to existing algorithms to come up with ideas for writing your own.
• Use fast iterations.
• Focus on efficiency when coding.
• Don’t forget to finish lest the code will fail.

An algorithm is a series of steps designed to solve a problem or complete a task. Algorithms are usually written as pseudocode (pseudocode), or a combination of spoken language and one or more programming languages to write a program. This article will show you how to create a complete algorithm to help you build your own application.

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