{"id":448,"date":"2025-10-08T14:33:38","date_gmt":"2025-10-08T14:33:38","guid":{"rendered":"http:\/\/west.wangyuansheng.cn\/?p=448"},"modified":"2025-10-08T14:33:38","modified_gmt":"2025-10-08T14:33:38","slug":"%e7%bb%9d%e4%b8%96%e9%ab%98%e6%89%8b","status":"publish","type":"post","link":"http:\/\/west.wangyuansheng.cn\/?p=448","title":{"rendered":"\u7edd\u4e16\u9ad8\u624b"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"956\" height=\"774\" src=\"http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/10\/image.png\" alt=\"\" class=\"wp-image-449\" srcset=\"http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/10\/image.png 956w, http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/10\/image-300x243.png 300w, http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/10\/image-768x622.png 768w\" sizes=\"auto, (max-width: 956px) 100vw, 956px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"940\" height=\"741\" src=\"http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/10\/image-1.png\" alt=\"\" class=\"wp-image-450\" srcset=\"http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/10\/image-1.png 940w, http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/10\/image-1-300x236.png 300w, http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/10\/image-1-768x605.png 768w\" sizes=\"auto, (max-width: 940px) 100vw, 940px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3010\u5206\u6790\u95ee\u9898\u3011<br>\u9898\u76ee\u8981\u6c42\u5224\u65ad\u5c0fA\u80fd\u5426\u63a5\u4f4f\u5b50\u5f39\u3002\u5173\u952e\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b50\u5f39\u901f\u5ea6 v \u7c73\/\u79d2\uff0c\u5300\u901f\u76f4\u7ebf\u8fd0\u52a8<\/li>\n\n\n\n<li>\u53d1\u5c04\u65f6\u8ddd\u79bb\u5c0fA\u4e3a s \u7c73<\/li>\n\n\n\n<li>\u5b50\u5f39\u98de\u884c\u65f6\u95f4 t = s \/ v \u79d2<\/li>\n\n\n\n<li>\u4e0d\u53ef\u63a7\u72b6\u6001\u65f6\u95f4\u6bb5\uff1a[a, b] \u79d2\uff08\u5305\u542b\u7aef\u70b9\uff09<\/li>\n\n\n\n<li>\u5982\u679c\u5b50\u5f39\u5230\u8fbe\u65f6\u95f4 t \u4e0d\u5728 [a, b] \u533a\u95f4\u5185\uff0c\u5219\u53ef\u4ee5\u63a5\u4f4f<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u9700\u8981\u5904\u7406\u7684\u60c5\u51b5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5982\u679c t &lt; a \u6216 t > b\uff0c\u53ef\u4ee5\u63a5\u4f4f<\/li>\n\n\n\n<li>\u5982\u679c a \u2264 t \u2264 b\uff0c\u65e0\u6cd5\u63a5\u4f4f<\/li>\n\n\n\n<li>\u6ce8\u610f t \u53ef\u80fd\u662f\u5c0f\u6570\uff0c\u9700\u8981\u7cbe\u786e\u6bd4\u8f83<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fb9\u754c\u60c5\u51b5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f53 t \u6b63\u597d\u7b49\u4e8e a \u6216 b \u65f6\uff0c\u5c5e\u4e8e\u4e0d\u53ef\u63a7\u72b6\u6001<\/li>\n\n\n\n<li>v \u53ef\u80fd\u4e3a 0\uff1f\u4f46\u9898\u76ee\u8bf4\u5b50\u5f39\u901f\u5ea6\uff0c\u5e94\u8be5 v > 0<\/li>\n\n\n\n<li>s \u53ef\u80fd\u4e3a 0\uff1f\u6b64\u65f6 t = 0\uff0c\u5982\u679c a > 0 \u5219\u53ef\u4ee5\u63a5\u4f4f<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3010\u5efa\u7acb\u6a21\u578b\uff08\u4f2a\u4ee3\u7801\uff09\u3011<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u8f93\u5165\uff1av, a, b, s\n\u8ba1\u7b97\u5b50\u5f39\u98de\u884c\u65f6\u95f4\uff1at = s \/ v\n\n\u5982\u679c t &lt; a \u6216\u8005 t &gt; b\uff1a\n    \u8f93\u51fa \"yes\"\n\u5426\u5219\uff1a\n    \u8f93\u51fa \"No\"<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3010\u7f16\u5199\u4ee3\u7801\u3011<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;iostream&gt;\nusing namespace std;\nint main(){\n    int v,a,b,s;\n    cin&gt;&gt;v&gt;&gt;a&gt;&gt;b&gt;&gt;s;\n    int time= s\/v;\n    if(time&lt;a || time&gt;b){\n        cout&lt;&lt;\"Yes\";\n    }else{\n        cout&lt;&lt;\"No\";\n    }\n    return 0;\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3010\u4fdd\u5b58\u7f16\u8bd1\u8fd0\u884c\u3011<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3010\u5206\u6790\u95ee\u9898\u3011\u9898\u76ee\u8981\u6c42\u5224\u65ad\u5c0fA\u80fd\u5426\u63a5\u4f4f\u5b50\u5f39\u3002\u5173\u952e\u70b9\uff1a \u9700\u8981\u5904\u7406\u7684\u60c5\u51b5\uff1a \u8fb9\u754c\u60c5\u51b5\uff1a&#8230; <a class=\"read-more\" href=\"http:\/\/west.wangyuansheng.cn\/?p=448\">\u9605\u8bfb\u66f4\u591a&#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-448","post","type-post","status-publish","format-standard","hentry","category-problem"],"_links":{"self":[{"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts\/448","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=448"}],"version-history":[{"count":1,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts\/448\/revisions"}],"predecessor-version":[{"id":451,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts\/448\/revisions\/451"}],"wp:attachment":[{"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=448"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}