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Interesting Examples of algorithms in everyday life

  • Difficulty Level : Easy
  • Last Updated : 23 Aug, 2018

            Ever found shortest path from Place A to Place B on Google Maps? Ever rolled a dice just by a click in an online game? Ever used search functionality in a website? One thing which is common to all these scenarios is that one or other algorithm is being run and results are being delivered.

         Simply stated, Algorithm is a set of instructions to reach a result based on given inputs. To take a current world scenario, encryption has become almost a minimum requirement for any application. For example, a popular encryption technique is MD5 Encryption Algorithm.

Examples of MD5:

Input : HelloWorld
MD5 Hash : 68e109f0f40ca72a15e05cc22786f8e6

Input : GeeksForGeeks
MD5 Hash : f1e069787ece74531d112559945c6871

         Google when showing search results uses page ranking techniques. Facebook when showing news feed uses a similar ranking algorithm to make it more relevant to you. All these use a modification of Link Analysis, an interesting branch in Data Mining.
Let’s consider a small example.

Network indicating friends

Sample network graph with edges indicating friendships.

The above image shows a sample network graph in which each node represents a different profile and an edge showing a friendship.Considering this scenario, Facebook algorithms may determine that the number of mutual friends between A and F is 2 and may update your feed and friend suggestions.

         So, whenever you press a key on your keyboard, make a call, perform a calculation, start an application or press a remote button, always an algorithms is triggered. So, there are countless examples of many algorithms in our daily life and making our life easier.

Attention reader! Don’t stop learning now. Join the First-Step-to-DSA Course for Class 9 to 12 students , specifically designed to introduce data structures and algorithms to the class 9 to 12 students

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