C Program to Find the Largest Number Among Three Numbers

In this article, we will discuss a C program that allows you to find the largest number among three given numbers. The tutorial includes a detailed explanation of the algorithm, example code, and a mermaid diagram to help you understand the process.

Algorithm to Determine the Largest Number

The algorithm we will implement follows these steps:

  1. Accept three input numbers from the user.
  2. Compare the first and second numbers. Store the larger number in a temporary variable.
  3. Compare the temporary variable with the third number.
  4. The largest number among the three will be stored in the temporary variable.

Example Code


#include 

int main() {
    int a, b, c, largest;

    // Accept three numbers from the user
    printf("Enter three numbers: ");
    scanf("%d %d %d", &a, &b, &c);

    // Compare the first two numbers and store the larger one in 'largest'
    if (a > b) {
        largest = a;
    } else {
        largest = b;
    }

    // Compare 'largest' with the third number
    if (c > largest) {
        largest = c;
    }

    // Print the largest number
    printf("The largest number is: %d\n", largest);

    return 0;
}

How to Compile and Run the Program

To compile and run the program, follow these steps:

  1. Save the code in a file with the .c extension, e.g., largest_number.c.
  2. Open a terminal or command prompt, navigate to the directory containing the file.
  3. Compile the code using the following command: gcc largest_number.c -o largest_number.
  4. Run the compiled program using the command: ./largest_number (Unix/Linux) or largest_number.exe (Windows).

Conclusion

This article presented a comprehensive guide to creating a C program to find the largest number among three given numbers. We’ve discussed the algorithm, provided an example code, and included a mermaid diagram to aid in understanding. By following the steps and explanations provided, you should be able to implement this program with ease.

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