Then if n is odd, we switch the first element and the last one.

Heap's algorithm generates all possible permutations of n objects.

It generates each permutation from the previous one by interchanging a single pair of elements; the other n-2 elements are not disturbed

First set a counter i to 0. Now we perform the following steps repeatedly until i is equal to n.

We use the algorithm to generate the (n-1)! permutations of the first n-1 elements, adjoining the last element to each of these.

Thus we generate all of the permutations that end with the last element.

If n is even, we switch the i-th element with the last one.

Note that there's no difference between n even and n odd in the first iteration.

Now we add one to the counter i and repeat.

In each iteration, the algorithm will produce all of the permutations that end with the element that has just been moved to the "last" position.

Elections determine who is in power but they do not determine how power is used.

We would fight not for the political future of a distant city, rather for principles whose destruction would ruin the possibility of peace and security for the peoples of the earth.

If I could eat whatever I wanted every day, I would have Domino's pizza with pasta carbonara inside every slice. And at night, I would have Neapolitan ice cream until I felt absolutely toxic. And then I would drift off telling myself, 'It's going to be O.K... It's going to be O.K. you're going to train in the morning.'

The genre has moved into this commercial aspect of itself, and ignored this extraordinarily rich literature that's filed everywhere else except under travel.

Truth is not something that you can search outside, it is something that needs to be explored within. Truth descends when you are in the state of no-mind. Being meditative leads into the state of no-mind.

The candid and honest and pure heartedness of children has strengthened my views that we are all equal and should be afforded the basic human rights that we all deserve.

Wars of pen and ink often lead to wars of cannon and bayonets.

The radio was my big influence. Comedy came from the instinctual feel I had for language.

Finding oneself and ones path is like waking up on a foggy day. Be patient and presently the fog will clear and that which has always been there can be seen. The path is already there to follow.

I spend the most time with the Wii.

Every congresswoman surely endures the same strains that drive some of her male colleagues to have affairs: lots of travel, families far away, heady work that makes a domestic routine seem distant and boring. But the stakes are much higher for women, because they are still judged by a different standard.

Humor has bailed me out of more tight situations than I can think of. If you go with your instincts and keep your humor, creativity follows. With luck, success comes, too.

I love the 'Housewives.' I don't watch 'American Idol' or 'X Factor.' I guess I don't like network reality: I like my Bravo; I like documentary programming - I love 'Intervention' and some things on TLC more than others - but the 'Real Housewives' to me are really revolutionary, in terms of giving camera time to women of a certain age.

As an educator, I have always striven to see that the fruits of the American Dream are available to all.

The only time I've ever really felt envy is when I've watched people make music, which made my time living in the now-legendary Jazz Loft at 821 Sixth Avenue in New York a constant source of agony and ecstasy!

It is a dark, dark world. If you're going to be in a dark world, I can't think of any better one to be in. I still think I'm very lucky to be in it.

A lot of people think this is a goodie two-shoes talking. But we do have a tendency to complain rather than celebrating who we are. I learned at my mother's knee it's better to appreciate what's happening... I think we kind of talk ourselves into the negative sometimes.

I go on a hunting safari at least once a year to Botswana, which is fantastic because we have a huge area of wilderness entirely to ourselves. My island covers roughly 55 acres, which again I have to myself, with nearly half a kilometre of private beach with my own jetties and boats.

I grew up under Thatcher. I grew up believing that I was fundamentally powerless. Then gradually over the years it occurred to me that this was actually a very convenient myth for the state.

Even if you flippin' fries at McDonald's, if you are excellent, everybody wants to be in your line.

Jack Nicholson is a textbook actor who's very intuitive. He is absolutely brilliant at going as far as you can go, always pushing to the edge, but still making it seem real.

I's taken me a great deal to get here. I don't plan on missing anything.

Look at Baltimore back in 2000. They had an outstanding defense. They could run the ball, and they had a quarterback that didn't turn it over that much. I think that is a plan that can bring you great success.

I often work by avoidance.