jasonbogd questions

• Given a list of elements in lexicographical order (i.e. ['a', 'b', 'c', 'd']), find the nth permutation - Average time to solve?
• Multiple models in the same form in Rails 3.1?
• Objective-C preprocessor available?
• Zooming in an NSView
• Why doesn't recv block until it receives all of the data?
• How to class-dump iPad apps?
• Variable-length arrays in C89?
• Understanding Rails core source code?
• 32 vs 64 bit...or, what exactly does 'processing information' mean
• "make clean" results in "No rule to make target `clean'"

jasonbogd answers