[Kanika]

I want a C code to create three array files containing list of numbers in unsorted manner and then merge these three files to make a final array list in sorted manner.

[DaWei]

Write some code and present it here for help with any difficulties that arise. Please read the "Before you make a query" thread before making such posts. Incidentally, this is a help forum, not a code factory. There are places where you can hire a programmer.