jeneshicc https://blog.hatena.ne.jp/jeneshicc/ 落書き、時々落学 https://jeneshicc.hatenadiary.org/ Project Euler The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17.Find the sum of all the primes below two million. 自分が実装したエラトステネスのふるいは遅かった。単純な素数生成。 p010 = sum$takeWhile(<2000000)$primes primes = 2:filter isPrime [3,5..] isPrime x = all ((/= 0).mod x)$takeWhile (<= (floor.sqrt.fromIntegral$ x)) primes エラトステネス改良 … 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fjeneshicc.hatenadiary.org%2Fentry%2F20081026%2F1225000234" title="Problem 10 - 落書き、時々落学" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2008-10-26 14:50:34 rich https://jeneshicc.hatenadiary.org/entry/20081026/1225000234 1.0 100%