Sent me a C/C++ test via email. It was supposed to take no more than one hour.

I was asked not to use an editor, the internet, or another compiler. I was only to use the online environment without the C standard libraries.

Implement the atoi C function.

Implement a function that reverses a linked list recursively.

Implement a function that inverts all the words within a string, with each word separated by a space. Note: do not reverse the statement, just the words.

Implement a function that reverses the bits within an unsigned integer using bitwise operations.