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

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.

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

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

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.

Franklin Roosevelt was a great leader. He saw how to use the levers of power to affect change.

Love knows not distance; it hath no continent; its eyes are for the stars.

I definitely challenge people. But hopefully, I am working harder than anybody else, and so people won't resent the fact that I want them to work hard, as well.

How that works is our first season was the year we had a threatened writers' strike, so what we did was that instead of doing 22 episodes, we did 30. We put 10 in the bank.

Maybe people have no idea how much work is behind a picture. It can seem very effortless, but there is a lot of work. It's exactly like doing ballet. It's hours and hours, but when you go onstage, it's just the pleasure of dancing.

Life is like music, it must be composed by ear, feeling and instinct, not by rule. Nevertheless one had better know the rules, for they sometimes guide in doubtful cases, though not often.

I have family obligations and all that stuff. I get my kids six weeks in the summer, which is a real intense period of time. I'm with them every minute of the day.

The happiest is the person who suffers the least pain; the most miserable who enjoys the least pleasure.

Don't worry about people stealing your ideas. If your ideas are any good, you'll have to ram them down people's throats.

I just happen to believe that what's at stake in the early child's development is so vital and so important, and I think it is founded in the main, in the broad cultural sense, on the relationship between the mother and child.

It is wrong always everywhere and for everyone to believe anything upon insufficient evidence.

Savage, despicable evil. That's what we were fighting in Iraq. That's why a lot of people, myself included, called the enemy 'savages.' There really was no other way to describe what we encountered there.

Poetry and beauty are always making peace. When you read something beautiful you find coexistence; it breaks walls down.

Accountants, machinists, medical technicians, even software writers that write the software for 'machines' are being displaced without upscaled replacement jobs. Retrain, rehire into higher paying and value-added jobs? That may be the political myth of the modern era. There aren't enough of those jobs.

When we think about the past, we think, 'It must have been so boring.' It's actually not.

My fantasy is to have a restaurant where there are no written menus, but where you just ask people, 'What are you in the mood for? Fish? Meat? White wine?'

I think the idea of creating a character from scratch, one that has not been done in a novel or an existing story, is immensely exciting, terrifying and ultimately rewarding.

The revolution is not an apple that falls when it is ripe. You have to make it fall.

No person, I think, ever saw a herd of buffalo, of which a few were fat and the great majority lean. No person ever saw a flock of birds, of which two or three were swimming in grease, and the others all skin and bone.

There might well have been an Irish great-great-grandfather of mine back then in the 1800s.

Technologically, the Internet works thanks to loose but trusted connections among its many constituent parts, with easy entry and exit for new ISPs or new forms of expanding access.

Some people feel that what we're doing makes no sense, that it's just a waste of money. But it's working.

A record company used to be a very good thing, but they ended up soul-destroyingly trapping people in the accounting department. And you couldn't get any further, and the heads of each department were changing all the time, so you couldn't have any permanent relationship within the corporation.

The more I thought of the McClure offer the less I thought of it. So I told him last night I was satisfied where I was, and that the $75 he offered me was no inducement.