Question

What is an algorithm? Give 2 examples of algorithms and explain what they do and how they work.

Answer 1

Algorithm : It is a step by step method of solving a problem based on conducting a sequence of specified actions.

In mathematics and computer science, an algorithm usually means a small procedure that solves a recurrent problem.In a non-technical approach, we use algorithms in everyday tasks, such as a recipe to bake a cake or a manual to use a machine.

Example 1 :

To make a cheese sandwich:

1. Get sandwich ingredients
2. If at least one ingredient is missing.
   1. Get ingredient(s) at the store
3. Place two slices of bread on the counter
4. Get spreading knife
5. Apply peanut butter to both the bread slices
6. Place applied sides of bread together
7. Eat sandwich

Example 2 :

Input : lets assume we have a string of numbers ( positive and negative )

Output : we need a string with just the magnitude ( only positive )

1. get input

2. If number is positive take it in the output string

3. If number is negative multiply by -1

4. Get the resultant number in the output string.