Hi folks!

I was asked this question in Linkedin interview a couple of years back. Can someone please help me with this system design question?

Design a search based system using indexing in 1 million files. Suppose I have a word “red”, I need to return all of the files, which has red in it. I am getting 10lakh requests per day. Assume there is no typo error and the word searched is from a-z.

Would need help with both LLD and HLD.