gowrikumar

I have had prepared slide set explaining the algorithm a while back here. May be useful for understanding the code: http://www.slideshare.net/gkumar007/counting-bits-presentati...

Some of the questions have a pointers to the reading material. I will try to get the answers updated this week.

Yup! that's correct. Later versions of compilers have become intelligent with standard library function and I doubt if this reproes on the current compilers - for standard library functions.

OP here! Started getting a lot of mails seeking answers for the puzzles. Was wondering what triggered all this and learnt about this post.

Oh yes! That's what is mentioned in the web page upfront. "Most of the programs are meant to be compiled, run and to be explained for their behaviour. The puzzles/questions can be broadly put into the following categories: "