* feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
741 B
741 B
id, title, challengeType, forumTopicId, dashedName
id | title | challengeType | forumTopicId | dashedName |
---|---|---|---|---|
5900f5271000cf542c51003a | Problem 443: GCD sequence | 5 | 302115 | problem-443-gcd-sequence |
--description--
Let g(n) be a sequence defined as follows: g(4) = 13, g(n) = g(n-1) + gcd(n, g(n-1)) for n > 4.
The first few values are:
n 4567891011121314151617181920... g(n) 1314161718272829303132333451545560...
You are given that g(1 000) = 2524 and g(1 000 000) = 2624152.
Find g(1015).
--hints--
euler443()
should return 2744233049300770.
assert.strictEqual(euler443(), 2744233049300770);
--seed--
--seed-contents--
function euler443() {
return true;
}
euler443();
--solutions--
// solution required