Write an algorithm to find the largest of three numbers

write an algorithm to find the largest of three numbers

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.