i need both question in programming C plz.

Copying a String Create a function called "CustomCopy" such that it takes in 2 strings - source and destination - and copies the contents of the sourcestring to the destination. You may not use the string.h library for this problem. The function must work for all possible string sizes. Concatenating a String onto Another Create a function called "CustomCat" such that it takes in 2 strings - source and destination - and copies the contents of the source string onto the end of the destination string. You may not use the string.h library for this problem. The function must work for all possible string sizes