{"id":3009,"date":"2025-02-03T05:09:00","date_gmt":"2025-02-03T05:09:00","guid":{"rendered":"https:\/\/histy.jp\/?p=3009"},"modified":"2025-02-03T05:09:00","modified_gmt":"2025-02-03T05:09:00","slug":"post-3009","status":"publish","type":"post","link":"https:\/\/histy.jp\/?p=3009","title":{"rendered":"\u7af6\u6280\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u9244\u5247\u3092C#\u3067\u89e3\u3044\u3066\u307f\u305f\u3002A11 – Binary Search 1"},"content":{"rendered":"\n

\u554f\u984c<\/h2>\n\n\n\n

A11 – Binary Search 1 <\/a><\/strong><\/p>\n\n\n\n

\u8003\u3048\u65b9<\/h3>\n\n\n\n

\u554f\u984c\u6587\u3092\u7406\u89e3\u3059\u308b\u3002<\/h4>\n\n\n\n

D\u65e5\u9593\u958b\u50ac\u3055\u308c\u308b\u30a4\u30d9\u30f3\u30c8\u306bN\u4eba\u306e\u5ba2\u304c\u305d\u308c\u305e\u308c\u9023\u7d9a\u3057\u305f\u7279\u5b9a\u306e\u671f\u9593\u8a2a\u308c\u308b\u3002
\u305d\u308c\u305e\u308c\u306e\u65e5\u306b\u3061\u3067\u306f\u4f55\u4eba\u5ba2\u304c\u8a2a\u308c\u305f\u304b\u3092\u7b54\u3048\u308d\u3002<\/p>\n\n\n\n

\u89e3\u304f<\/h4>\n\n\n\n

2\u5206\u63a2\u7d22\u901a\u308a\u306b\u66f8\u3051\u3070OK\u3002
\u4e8c\u5206\u63a2\u7d22\u306b\u3064\u3044\u3066\u306f\u3053\u3061\u3089\u306e\u672c\u3092\u53c2\u8003\u306b\u3057\u305f\u3002<\/p>\n\n\n\n
\"[\u5546\u54c1\u4fa1\u683c\u306b\u95a2\u3057\u307e\u3057\u3066\u306f\u3001\u30ea\u30f3\u30af\u304c\u4f5c\u6210\u3055\u308c\u305f\u6642\u70b9\u3068\u73fe\u6642\u70b9\u3067\u60c5\u5831\u304c\u5909\u66f4\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u304c\u3054\u3056\u3044\u307e\u3059\u3002]\"<\/a><\/td>

\u554f\u984c\u89e3\u6c7a\u529b\u3092\u935b\u3048\u308b\uff01\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u30c7\u30fc\u30bf\u69cb\u9020\u3010\u96fb\u5b50\u66f8\u7c4d\u3011[ \u5927\u69fb\u517c\u8cc7 ]<\/a>
\u4fa1\u683c\uff1a3,300\u5186<\/span> (2025\/2\/3\u6642\u70b9)<\/span><\/p>

<\/a>
\u697d\u5929\u3067\u8cfc\u5165 <\/div><\/a><\/div><\/td><\/tr><\/table><\/div>

<\/p><\/td><\/tr><\/table>\n\n\n\n

\u63d0\u51fa\u3057\u305f\u30b3\u30fc\u30c9<\/h3>\n\n\n\n
using System;\nusing System.Linq;\nusing System.Collections.Generic;\nclass Program\n{\n    static void Main(string[] args)\n    {\n        int[] nx = Console.ReadLine().Split(' ').Select(i => int.Parse(i)).ToArray();\n        int n = nx[0];\n        int x = nx[1];\n        int[] a = Console.ReadLine().Split(' ').Select(i => int.Parse(i)).ToArray();\n        int result = BinarySearch(a, x);\n        Console.WriteLine(result + 1);\n    }\n\n    private static int BinarySearch(int[] e, int key)\n    {\n        int left = 0;\n        int right = e.Length - 1;\n\n        int harf = (left + right) \/ 2;\n\n        while(left <= right)\n        {\n            harf = left + (right - left) \/ 2;\n            if (e[harf] == key) return harf;\n            else if (e[harf] < key)\n            {\n                left = harf + 1; \/\/{0,1}\u306a\u3089index\u306f\u5e38\u306b0\u306b\u306a\u308a\u3001\u6c38\u9060\u306bharf=0\u3067\u30eb\u30fc\u30d7\u3057\u3066\u3057\u307e\u3046\u304b\u3089+1\u3057\u3066\u3044\u308b\u3002\n            }else if (e[harf] > key)\n            {\n                right = harf - 1;\n            }\n        }\n\n        return -1;\n    }\n}<\/code><\/pre>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u554f\u984c A11 – Binary Search 1  \u8003\u3048\u65b9 \u554f\u984c\u6587\u3092\u7406\u89e3\u3059\u308b\u3002 D\u65e5\u9593\u958b\u50ac\u3055\u308c\u308b\u30a4\u30d9\u30f3\u30c8\u306bN\u4eba\u306e\u5ba2\u304c\u305d\u308c\u305e\u308c\u9023\u7d9a\u3057\u305f\u7279\u5b9a\u306e\u671f\u9593\u8a2a\u308c\u308b\u3002\u305d\u308c\u305e\u308c\u306e\u65e5\u306b\u3061\u3067\u306f\u4f55\u4eba\u5ba2\u304c\u8a2a\u308c\u305f\u304b\u3092\u7b54\u3048\u308d\u3002  […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25],"tags":[],"_links":{"self":[{"href":"https:\/\/histy.jp\/index.php?rest_route=\/wp\/v2\/posts\/3009"}],"collection":[{"href":"https:\/\/histy.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/histy.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/histy.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/histy.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3009"}],"version-history":[{"count":6,"href":"https:\/\/histy.jp\/index.php?rest_route=\/wp\/v2\/posts\/3009\/revisions"}],"predecessor-version":[{"id":3017,"href":"https:\/\/histy.jp\/index.php?rest_route=\/wp\/v2\/posts\/3009\/revisions\/3017"}],"wp:attachment":[{"href":"https:\/\/histy.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3009"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/histy.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3009"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/histy.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3009"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}