Write an algorithm to find the largest of three numbers

General
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write an algorithm to find the largest of three numbers

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Write an algorithm to find the largest of three numbers

Answer: To find the largest of three numbers, you can use a simple comparison algorithm. Here is a step-by-step algorithm to achieve this:

  1. Input: Three numbers, let’s call them a, b, and c.
  2. Compare: Use conditional statements to compare these numbers.
  3. Output: The largest number among the three.

Algorithm Steps:

  1. Start
  2. Input three numbers a, b, and c.
  3. Check if a is greater than or equal to b and a is greater than or equal to c.
    • If true, then a is the largest.
  4. Else if b is greater than or equal to a and b is greater than or equal to c.
    • If true, then b is the largest.
  5. Else c is the largest.
  6. Output the largest number.
  7. End

Pseudocode:

Algorithm FindLargest(a, b, c)
   Input: Three numbers a, b, c
   Output: The largest number among a, b, and c

   Begin
      if a >= b and a >= c then
         largest = a
      else if b >= a and b >= c then
         largest = b
      else
         largest = c
      end if
      Output "The largest number is: ", largest
   End

Example in Python:

To give a concrete example, here’s how you can implement this algorithm in Python:

def find_largest(a, b, c):
    if a >= b and a >= c:
        return a
    elif b >= a and b >= c:
        return b
    else:
        return c

# Example usage:
a = 5
b = 10
c = 7
largest = find_largest(a, b, c)
print(f"The largest number is: {largest}")

Explanation:

  1. Input: The function find_largest takes three parameters a, b, and c.
  2. Comparison:
    • The first if statement checks if a is greater than or equal to both b and c.
    • If the first condition is false, the second elif statement checks if b is greater than or equal to both a and c.
    • If both conditions are false, the else statement concludes that c must be the largest.
  3. Output: The function returns the largest number, which is then printed.

This algorithm ensures that you accurately find the largest of the three numbers by systematically comparing them.