Core programming Questions-4

1) Design the implementation and thread models for I/O completion ports. Remember to take into account multi-processor machines.
2) Write a function that takes in a string parameter and checks to see whether or not it is an integer, and if it is then return the integer value.
3) Write a function to print all of the permutations of a string.
4) Implement malloc.
5) Write a function to print the Fibonacci numbers.
6) Write a function to copy two strings, A and B. The last few bytes of string A overlap the first few bytes of string B.
7) How would you write qsort?
8) How would you print out the data in a binary tree, level by level, starting at the top?