Write an algorithm that accepts four numbers as input and find the largest and smallest of them.

Write an algorithm that accepts four numbers as input and find the largest and smallest of them.

Here is the algorithm to find the largest and smallest of four numbers:

Pseudocode:

INPUT num1, num2, num3, num4
SET largest = num1
SET smallest = num1

IF num2 > largest THEN
    SET largest = num2
IF num3 > largest THEN
    SET largest = num3
IF num4 > largest THEN
    SET largest = num4

IF num2 < smallest THEN
    SET smallest = num2
IF num3 < smallest THEN
    SET smallest = num3
IF num4 < smallest THEN
    SET smallest = num4

PRINT "Largest number is ", largest
PRINT "Smallest number is ", smallest

Explanation:

1. Input: Read four numbers (num1, num2, num3, num4).

2. Initialize:

   • Set 'largest' variable to the first number (num1).

   • Set 'smallest' variable to the first number (num1).

3. Finding the Largest:

   • Compare num2 with 'largest' and update 'largest' if num2 is greater.

   • Compare num3 with 'largest' and update 'largest' if num3 is greater.

   • Compare num4 with 'largest' and update 'largest' if num4 is greater.

4. Finding the Smallest:

   • Compare num2 with 'smallest' and update 'smallest' if num2 is smaller.

   • Compare num3 with 'smallest' and update 'smallest' if num3 is smaller.

   • Compare num4 with 'smallest' and update 'smallest' if num4 is smaller.

5. Output: Print the 'largest' and 'smallest' values.