{"description":"http://projecteuler.net/index.php?section=problems&id=145 \u984c\u610f\u3069\u304a\u308a\u306b\u66f8\u304f\u3068\u3001\u6570\u6642\u9593\u304b\u304b\u308a\u305d\u3046\u3067\u3059\u3002 def digits(n): while n: yield n % 10 n /= 10 def reverse(n): return reduce(lambda x, y: x * 10 + y, digits(n)) def is_reversible(n): return n % 10 != 0 and all(d % 2 == 1 for d in digits(n + reverse(n))) N = 10 ** 9 prin\u2026","type":"rich","blog_url":"https://inamori.hateblo.jp/","provider_name":"Hatena Blog","blog_title":"inamori\u2019s diary","image_url":null,"published":"2010-08-05 00:00:00","author_name":"inamori","width":"100%","url":"https://inamori.hateblo.jp/entry/20100805/p1","height":"190","title":"Project Euler 145","author_url":"https://blog.hatena.ne.jp/inamori/","categories":["PE","\u6570\u5b66","\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0"],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finamori.hateblo.jp%2Fentry%2F20100805%2Fp1\" title=\"Project Euler 145 - inamori\u2019s diary\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","provider_url":"https://hatena.blog"}