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

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

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.

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.

The real truths of life are never entirely new to you or to anybody because there is a level deep down within you where you already know all the things, all those spiritual truths that you read or hear, and then recognize them. I say 'recognize' because you're not... it's not new.

My first job, actually, was a Chicago Bulls commercial. I was a ninja. I walked with a limp for a week afterward and got paid 500 dollars 6 months later. Thanks, guys.

As a little girl I loved the thought of playing dress-up and getting ready.

It's not that I don't value my life. It's just that I love taking chances, testing myself, stepping over the line.

I think my original inspiration came from just natural curiosity about science and math and biology. In particular, I would say that, as I matured, it became more a feeling of trying to avoid the waste that occurs in the world where we have 6.5 billion minds. If you're a computer scientist, you can think of them as supercomputers.

I think that short films often contain an originality, a creative freedom, an energy and an invention that is inspiring and entertaining. I think they are, as Shakespeare put it, a good deed in a naughty world.

My dream is to have a gay son.

Focus on the positives and be grateful.

The real cause of hunger is the powerlessness of the poor to gain access to the resources they need to feed themselves

There are a couple of ideas for features that I would love to do. They happen to be comedies.

The act of conducting in itself, of waving my arms in the air and being in charge, I didn't miss. I missed the sensual pleasure of being in contact with music.

Obviously I was disappointed when it fell into disuse, because it was my own track named after me, but I am sure all those youngsters we lost will be coming back, and I certainly intend to be down here as much as I can, coaching and advising.

As for myself, I was never against Russia.

Style is the instrument you can pick back up when you want to regain some of the confidence you've lost.

It is admitted by everybody that rights and privileges enjoyed by the Roman Catholic minority in Manitoba down to 1890, were taken away by legislation of 1890.

We think of the revolution ending in Yorktown, Va. The fact of the matter is that the French defeated the British in a naval battle right in the mouth of Chesapeake Bay. Because the British fleet was coming to rescue Cornwallis, the British general, Washington was able to surround Cornwallis.

I believe education is the great equalizer.

Love is a fruit in season at all times and in reach of every hand

When injustice becomes law, resistance becomes duty.

A team without hope fizzles: no flameout, no fire.

There are many countries in the world that when they reached the middle-income stage, they witnessed serious structural problems such as growth stagnation, a widening wealth gap and increasing social unrest.

Britain can sometimes feel like a very small village, and you're this, I dunno, scarlet woman they're all gossiping about.

I want to make simple food new.

Not every woman has time to go to a salon and have her hair blow-dried every day.