xef https://blog.hatena.ne.jp/xef/ Soleil cou coupe https://xef.hatenadiary.org/ CoffeeScript 問題文 Problem 9 ピタゴラスの三つ組(ピタゴラスの定理を満たす自然数)とはa Solution 3重ループをひとつ減らす工夫をするのがコツ？ pythagorean ?= (a, b, c) -> a*a + b*b == c*c for a in [1..1000] for b in [a..1000-a] c = 1000 - a - b if pythagorean? a, b, c console.log a*b*c 順路：CoffeeScriptでProject Euler #10 逆路：CoffeeScriptでProject Euler #8 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fxef.hatenadiary.org%2Fentry%2F20120331%2Fp1" title="CoffeeScriptでProject Euler #9 - Soleil cou coupe" 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 2012-03-31 00:00:02 rich https://xef.hatenadiary.org/entry/20120331/p1 1.0 100%