As he launches a new Telegraph podcast, the consumer champion talks rip-offs, airport shortcuts and the joys of one-star ...

Chris Wedel is a fan of all things tech and gadgets. Living in rural Kansas with his wife and two young boys makes finding ways to stay online tricky — not to mention making my homestead smarter.

A merge sort uses smaller, ordered lists which are easier to sort and merge than larger lists. It is usually more efficient and quicker than the bubble sort. It is more complex to code. It will still ...