800 B
800 B
id | title | challengeType | forumTopicId | dashedName |
---|---|---|---|---|
5900f41e1000cf542c50ff31 | Problem 178: Step Numbers | 5 | 301813 | problem-178-step-numbers |
--description--
Consider the number 45656.
It can be seen that each pair of consecutive digits of 45656 has a difference of one.
A number for which every pair of consecutive digits has a difference of one is called a step number.
A pandigital number contains every decimal digit from 0 to 9 at least once.
How many pandigital step numbers less than {10}^{40}
are there?
--hints--
stepNumbers()
should return 126461847755
.
assert.strictEqual(stepNumbers(), 126461847755);
--seed--
--seed-contents--
function stepNumbers() {
return true;
}
stepNumbers();
--solutions--
// solution required