{"provider_name":"Hatena Blog","blog_url":"https://nixeneko.hatenablog.com/","image_url":"https://cdn.blog.st-hatena.com/images/theme/og-image-1500.png","type":"rich","description":"\u3042\u308b\u6574\u6570\u5024\u304c\u4e0e\u3048\u3089\u308c\u305f\u3068\u304d\u3001\u305d\u308c\u3092\u4e8c\u9032\u6570\u8868\u8a18\u3057\u305f\u6642\u306e1\u306e\u500b\u6570(1\u306b\u306a\u3063\u3066\u3044\u308b\u30d3\u30c3\u30c8\u306e\u6570)\u3092\u6570\u3048\u308b\u306e\u3092popcount\u3068\u547c\u3076\u3089\u3057\u3044(population count\u306e\u7565)\u3002\u3053\u308c\u306f\u30cf\u30df\u30f3\u30b0\u8ddd\u96e2\u3092\u8a08\u7b97\u3059\u308b\u306e\u306b\u4f7f\u3048\u30012\u3064\u306e\u5024\u306eXOR\u3092\u3068\u3063\u3066popcount\u3092\u8a08\u7b97\u3059\u308c\u3070\u30cf\u30df\u30f3\u30b0\u8ddd\u96e2\u3068\u306a\u308b\u3002Python\u306b\u306f\u6a19\u6e96\u3067\u7528\u610f\u3055\u308c\u3066\u306a\u3044\u306e\u3067\u300164\u30d3\u30c3\u30c8\u6574\u6570\u306b\u5bfe\u3059\u308b\u6f14\u7b97\u3092\u60f3\u5b9a\u3057\u3066\u3044\u304f\u3064\u304b\u306e\u5b9f\u88c5\u3092\u6bd4\u3079\u3066\u307f\u308b\u3002 Python 3\u7cfb\u306f\u6574\u6570\u306b\u6c7a\u307e\u3063\u305f\u4e0a\u9650\u304c\u306a\u3044\u306e\u3067\u300164-bit unsigned int\u76f8\u5f53\u306e\u306e\u7bc4\u56f2\u306e\u6574\u6570\u5024\u3092\u5165\u529b\u3068\u3057\u3066\u8a08\u7b97\u3059\u308b\u3002 TL;DR bin(n).count(\"1\")\u304c\u7c21\u6f54\u3067\u305d\u3053\u305d\u3053\u901f\u3044 \u30e1\u30e2\u30ea\u3092\u4f7f\u3063\u2026","author_name":"nixeneko","author_url":"https://blog.hatena.ne.jp/nixeneko/","blog_title":"\u306b\u305b\u306d\u3053\u30e1\u30e2","provider_url":"https://hatena.blog","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnixeneko.hatenablog.com%2Fentry%2F2018%2F03%2F04%2F000000\" title=\"Python 3\u3067popcount\u3092\u8a08\u7b97\u3059\u308b - \u306b\u305b\u306d\u3053\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2018-03-04 00:00:00","url":"https://nixeneko.hatenablog.com/entry/2018/03/04/000000","version":"1.0","categories":["Python"],"title":"Python 3\u3067popcount\u3092\u8a08\u7b97\u3059\u308b","width":"100%"}