While many sites offer PDF versions, I recommend purchasing the physical copy or the official e-book from the publisher (Oxford University Press) to ensure you have the latest edition with all updated diagrams and errata. recommend specific chapters to focus on for an upcoming exam, or are you looking for online compilers to practice the code from the book?
and related textbooks through several other educational repositories: Internet Archive : Offers a digital version of Introduction to C Programming for free borrowing and streaming. : Hosts various documents and presentations Programming In C Reema Thareja Pdf Download