648 B
648 B
id | title | challengeType | forumTopicId |
---|---|---|---|
5900f4d01000cf542c50ffe2 | Problem 355: Maximal coprime subset | 5 | 302015 |
--description--
Define Co(n) to be the maximal possible sum of a set of mutually co-prime elements from {1, 2, ..., n}. For example Co(10) is 30 and hits that maximum on the subset {1, 5, 7, 8, 9}.
You are given that Co(30) = 193 and Co(100) = 1356.
Find Co(200000).
--hints--
euler355()
should return 1726545007.
assert.strictEqual(euler355(), 1726545007);
--seed--
--seed-contents--
function euler355() {
return true;
}
euler355();
--solutions--
// solution required