{"id":72253,"date":"2026-02-05T08:33:09","date_gmt":"2026-02-05T00:33:09","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/72253.html"},"modified":"2026-02-05T08:33:09","modified_gmt":"2026-02-05T00:33:09","slug":"%e7%88%b1%e5%90%83%e8%9f%a0%e6%a1%83%e7%9a%84%e5%ad%99%e6%82%9f%e7%a9%ba","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/72253.html","title":{"rendered":"\u7231\u5403\u87e0\u6843\u7684\u5b59\u609f\u7a7a"},"content":{"rendered":"<h3>\u4e00\u3001\u9898\u76ee\u63cf\u8ff0<\/h3>\n<p>\u5b59\u609f\u7a7a\u559c\u6b22\u5403\u87e0\u6843&#xff0c;\u4e00\u5929\u4ed6\u4e58\u5b88\u536b\u87e0\u6843\u56ed\u7684\u5929\u5175\u5929\u5c06\u79bb\u5f00\u4e86\u800c\u5077\u5077\u7684\u6765\u5230\u738b\u6bcd\u5a18\u5a18\u7684\u87e0\u6843\u56ed\u5077\u5403\u87e0\u6843\u3002<br \/>\n\u5df2\u77e5\u87e0\u6843\u56ed\u6709 N \u68f5\u87e0\u6843\u6811&#xff0c;\u7b2c i \u68f5\u87e0\u6843\u6811\u4e0a\u6709 N[i]&#xff08;\u5927\u4e8e 0&#xff09;\u4e2a\u87e0\u6843&#xff0c;\u5929\u5175\u5929\u5c06\u5c06\u5728 H&#xff08;\u4e0d\u5c0f\u4e8e\u87e0\u6843\u6811\u68f5\u6570&#xff09;\u5c0f\u65f6\u540e\u56de\u6765\u3002<br \/>\n\u5b59\u609f\u7a7a\u53ef\u4ee5\u51b3\u5b9a\u4ed6\u5403\u87e0\u6843\u7684\u901f\u5ea6 K&#xff08;\u5355\u4f4d&#xff1a;\u4e2a\/\u5c0f\u65f6&#xff09;&#xff0c;\u6bcf\u4e2a\u5c0f\u65f6\u4ed6\u4f1a\u9009\u62e9\u4e00\u9897\u87e0\u6843\u6811&#xff0c;\u4ece\u4e2d\u5403\u6389 K \u4e2a\u87e0\u6843&#xff0c;\u5982\u679c\u8fd9\u68f5\u6811\u4e0a\u7684\u87e0\u6843\u6570\u5c0f\u4e8e K&#xff0c;\u4ed6\u5c06\u5403\u6389\u8fd9\u68f5\u6811\u4e0a\u6240\u6709\u87e0\u6843&#xff0c;\u7136\u540e\u8fd9\u4e00\u5c0f\u65f6\u5185\u4e0d\u518d\u5403\u5176\u4f59\u87e0\u6843\u6811\u4e0a\u7684\u87e0\u6843\u3002<br \/>\n\u5b59\u609f\u7a7a\u559c\u6b22\u6162\u6162\u5403&#xff0c;\u4f46\u4ecd\u60f3\u5728\u5929\u5175\u5929\u5c06\u56de\u6765\u524d\u5c06\u6240\u6709\u87e0\u6843\u5403\u5b8c\u3002<br \/>\n\u6c42\u5b59\u609f\u7a7a\u53ef\u4ee5\u5728 H \u5c0f\u65f6\u5185\u5403\u6389\u6240\u6709\u87e0\u6843\u7684\u6700\u5c0f\u901f\u5ea6 K&#xff08;K \u4e3a\u6574\u6570&#xff09;\u3002<\/p>\n<h3>\u4e8c\u3001\u8f93\u5165\u8f93\u51fa\u63cf\u8ff0<\/h3>\n<h5>\u8f93\u5165\u63cf\u8ff0<\/h5>\n<ul>\n<li>\u7b2c\u4e00\u884c&#xff1a;\u82e5\u5e72\u4e2a\u6b63\u6574\u6570&#xff0c;\u7528\u7a7a\u683c\u5206\u9694&#xff0c;\u8868\u793a\u6bcf\u68f5\u87e0\u6843\u6811\u4e0a\u7684\u87e0\u6843\u6570\u91cf&#xff1b;<\/li>\n<li>\u7b2c\u4e8c\u884c&#xff1a;\u4e00\u4e2a\u6b63\u6574\u6570 H&#xff0c;\u8868\u793a\u5929\u5175\u5929\u5c06\u8fd4\u56de\u7684\u65f6\u95f4&#xff08;\u5c0f\u65f6&#xff09;&#xff0c;\u4e14 H \u2265 \u87e0\u6843\u6811\u68f5\u6570\u3002<\/li>\n<\/ul>\n<h5>\u8f93\u51fa\u63cf\u8ff0<\/h5>\n<ul>\n<li>\u4e00\u4e2a\u6b63\u6574\u6570&#xff1a;\u6ee1\u8db3\u6761\u4ef6\u7684\u6700\u5c0f\u8fdb\u98df\u901f\u5ea6 K&#xff1b;<\/li>\n<li>\u82e5\u8f93\u5165\u5f02\u5e38&#xff08;\u5982\u975e\u6570\u5b57\u3001\u87e0\u6843\u6570\u22640\u3001H \u5c0f\u4e8e\u6811\u7684\u6570\u91cf\u7b49&#xff09;&#xff0c;\u8f93\u51fa -1\u3002<\/li>\n<\/ul>\n<h3>\u4e09\u3001\u793a\u4f8b<\/h3>\n<table border=\"1\" cellpadding=\"1\" cellspacing=\"1\">\n<tbody>\n<tr>\n<td style=\"width:104px\">\u8f93\u5165<\/td>\n<td style=\"width:584px\">\n<p>3 11 6 7<br \/>\n8<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width:104px\">\u8f93\u51fa<\/td>\n<td style=\"width:584px\">4<\/td>\n<\/tr>\n<tr>\n<td style=\"width:104px\">\u8bf4\u660e<\/td>\n<td style=\"width:584px\">\n<p>\u5929\u5175\u5929\u5c068\u4e2a\u5c0f\u65f6\u540e\u56de\u6765&#xff0c;\u5b59\u609f\u7a7a\u5403\u6389\u6240\u6709\u87e0\u6843\u7684\u6700\u5c0f\u901f\u5ea64\u3002<\/p>\n<p>\u7b2c1\u5c0f\u65f6\u5168\u90e8\u5403\u5b8c\u7b2c\u4e00\u68f5\u6811&#xff0c;\u54033\u4e2a&#xff0c;<br \/>\n\u7b2c2\u5c0f\u65f6\u54034\u4e2a&#xff0c;\u7b2c\u4e8c\u68f5\u6811\u52697\u4e2a&#xff0c;<br \/>\n\u7b2c3\u5c0f\u65f6\u54034\u4e2a&#xff0c;\u7b2c\u4e8c\u68f5\u6811\u52693\u4e2a&#xff0c;<br \/>\n\u7b2c4\u5c0f\u65f6\u54033\u4e2a&#xff0c;\u7b2c\u4e8c\u68f5\u6811\u5403\u5b8c&#xff0c;<br \/>\n\u7b2c5\u5c0f\u65f6\u54034\u4e2a&#xff0c;\u7b2c\u4e09\u68f5\u6811\u52692\u4e2a&#xff0c;<br \/>\n\u7b2c6\u5c0f\u65f6\u54032\u4e2a&#xff0c;\u7b2c\u4e09\u68f5\u6811\u5403\u5b8c&#xff0c;<br \/>\n\u7b2c7\u5c0f\u65f6\u54034\u4e2a&#xff0c;\u7b2c4\u68f5\u6811\u52693\u4e2a&#xff0c;<br \/>\n\u7b2c8\u5c0f\u65f6\u54033\u4e2a&#xff0c;\u7b2c4\u68f5\u6811\u5403\u5b8c\u3002<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u56db\u3001\u89e3\u9898\u601d\u8def<\/h3>\n<h5>1. \u6838\u5fc3\u601d\u60f3<\/h5>\n<p>\u5229\u7528\u4e8c\u5206\u67e5\u627e\u89e3\u51b3 \u201c\u6700\u5c0f\u53ef\u884c\u503c\u201d \u95ee\u9898&#xff1a;\u901f\u5ea6K\u7684\u53d6\u503c\u8303\u56f4\u662f\u6709\u5e8f\u7684&#xff08;1 \u5230 maxPeach&#xff09;&#xff0c;\u4e14\u6ee1\u8db3 \u201c\u82e5\u901f\u5ea6K\u53ef\u884c&#xff08;\u603b\u8017\u65f6\u2264H&#xff09;&#xff0c;\u5219\u6240\u6709 &gt; K \u7684\u901f\u5ea6\u90fd\u53ef\u884c&#xff1b;\u82e5K\u4e0d\u53ef\u884c&#xff0c;\u5219\u6240\u6709 &lt;K \u7684\u901f\u5ea6\u90fd\u4e0d\u53ef\u884c\u201d \u7684\u5355\u8c03\u6027&#xff0c;\u56e0\u6b64\u53ef\u4ee5\u901a\u8fc7\u4e8c\u5206\u67e5\u627e\u5feb\u901f\u7f29\u5c0f\u8303\u56f4&#xff0c;\u627e\u5230\u6700\u5c0f\u53ef\u884c\u901f\u5ea6&#xff0c;\u907f\u514d\u66b4\u529b\u679a\u4e3e&#xff08;\u66b4\u529b\u679a\u4e3e\u65f6\u95f4\u590d\u6742\u5ea6 O (NmaxPeach)&#xff0c;\u4e8c\u5206\u67e5\u627e\u4ec5 O (Nlog (maxPeach))&#xff0c;\u6548\u7387\u5927\u5e45\u63d0\u5347&#xff09;\u3002<\/p>\n<h5>2. \u95ee\u9898\u672c\u8d28\u5206\u6790<\/h5>\n<p>\u8be5\u95ee\u9898\u662f\u5355\u8c03\u6027\u4f18\u5316\u95ee\u9898&#xff0c;\u5c5e\u4e8e\u4e8c\u5206\u67e5\u627e\u7684\u7ecf\u5178\u5e94\u7528\u573a\u666f&#xff08;\u6700\u5c0f\u6ee1\u8db3\u6761\u4ef6\u503c&#xff09;&#xff1a;<\/p>\n<ul>\n<li>\u95ee\u9898\u7ea6\u675f&#xff1a;\n<ul>\n<li>\u6bcf\u5c0f\u65f6\u53ea\u80fd\u5403\u4e00\u68f5\u6811\u4e0a\u7684\u87e0\u6843&#xff0c;\u6bcf\u5c0f\u65f6\u6700\u591a\u5403K\u4e2a&#xff1b;<\/li>\n<li>\u603b\u8017\u65f6\u2264H&#xff0c;\u4e14 H\u2265\u6811\u7684\u6570\u91cf&#xff08;\u5fc5\u8981\u524d\u63d0&#xff09;&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<li>\u5355\u8c03\u6027&#xff1a;\u901f\u5ea6K\u8d8a\u5927&#xff0c;\u603b\u8017\u65f6\u8d8a\u5c0f&#xff1b;\u901f\u5ea6K\u8d8a\u5c0f&#xff0c;\u603b\u8017\u65f6\u8d8a\u5927&#xff1b;<\/li>\n<li>\u76ee\u6807&#xff1a;\u627e\u5230\u6ee1\u8db3 \u201c\u603b\u8017\u65f6\u2264H\u201d \u7684\u6700\u5c0fK\u3002<\/li>\n<\/ul>\n<h5>3. \u6838\u5fc3\u903b\u8f91<\/h5>\n<ul>\n<li>\u4e8c\u5206\u8fb9\u754c\u786e\u5b9a&#xff1a;\n<ul>\n<li>\u5de6\u8fb9\u754cleft&#061;1&#xff1a;\u6700\u5c0f\u53ef\u80fd\u901f\u5ea6&#xff08;\u6bcf\u5c0f\u65f6\u5403 1 \u4e2a&#xff09;&#xff1b;<\/li>\n<li>\u53f3\u8fb9\u754cright&#061;maxPeach&#xff1a;\u6700\u5927\u5fc5\u8981\u901f\u5ea6&#xff08;\u518d\u5927\u7684\u901f\u5ea6\u4e0d\u4f1a\u51cf\u5c11\u603b\u8017\u65f6&#xff0c;\u65e0\u610f\u4e49&#xff09;&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<li>\u5224\u65ad\u6761\u4ef6&#xff1a;\u5bf9\u4e8e\u4e2d\u95f4\u503cmid&#xff0c;\u8ba1\u7b97\u4ee5mid\u4e3a\u901f\u5ea6\u7684\u603b\u8017\u65f6&#xff1a;\n<ul>\n<li>\u82e5\u603b\u8017\u65f6\u2264H&#xff1a;mid\u53ef\u884c&#xff0c;\u5c1d\u8bd5\u627e\u66f4\u5c0f\u7684\u901f\u5ea6&#xff08;\u6536\u7f29\u53f3\u8fb9\u754cright&#061;mid&#xff09;&#xff1b;<\/li>\n<li>\u82e5\u603b\u8017\u65f6 &gt; H&#xff1a;mid\u4e0d\u53ef\u884c&#xff0c;\u9700\u8981\u589e\u5927\u901f\u5ea6&#xff08;\u6536\u7f29\u5de6\u8fb9\u754cleft&#061;mid&#043;1&#xff09;&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<li>\u5faa\u73af\u7ec8\u6b62&#xff1a;\u5f53left&#061;&#061;right\u65f6&#xff0c;\u5373\u4e3a\u6700\u5c0f\u53ef\u884c\u901f\u5ea6&#xff1b;<\/li>\n<li>\u8017\u65f6\u8ba1\u7b97&#xff1a;\u7528\u6574\u6570\u5411\u4e0a\u53d6\u6574\u516c\u5f0f\u8ba1\u7b97\u5355\u68f5\u6811\u7684\u8017\u65f6&#xff0c;\u7d2f\u52a0\u5f97\u5230\u603b\u8017\u65f6&#xff0c;\u907f\u514d\u6d6e\u70b9\u8fd0\u7b97\u3002<\/li>\n<\/ul>\n<h5>4. \u6b65\u9aa4\u62c6\u89e3<\/h5>\n<li>\u8f93\u5165\u5904\u7406\u4e0e\u6821\u9a8c&#xff1a;\n<ul>\n<li>\u8bfb\u53d6\u5e76\u89e3\u6790\u87e0\u6843\u6570\u91cf\u6570\u7ec4&#xff0c;\u6821\u9a8c\u6570\u503c\u6709\u6548\u6027&#xff0c;\u8bb0\u5f55\u6700\u5927\u87e0\u6843\u6570&#xff1b;<\/li>\n<li>\u8bfb\u53d6\u603b\u65f6\u95f4 H&#xff0c;\u6821\u9a8c H\u2265\u6811\u7684\u6570\u91cf&#xff0c;\u65e0\u6548\u8f93\u5165\u76f4\u63a5\u8fd4\u56de &#8211; 1&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<li>\u521d\u59cb\u5316\u4e8c\u5206\u8fb9\u754c&#xff1a;\u5de6\u8fb9\u754c &#061; 1&#xff0c;\u53f3\u8fb9\u754c &#061; \u6700\u5927\u87e0\u6843\u6570&#xff1b;<\/li>\n<li>\u4e8c\u5206\u67e5\u627e\u6700\u5c0f\u901f\u5ea6&#xff1a;\n<ul>\n<li>\u8ba1\u7b97\u4e2d\u95f4\u503c mid&#xff0c;\u8ba1\u7b97\u4ee5 mid \u4e3a\u901f\u5ea6\u7684\u603b\u8017\u65f6&#xff1b;<\/li>\n<li>\u6839\u636e\u603b\u8017\u65f6\u4e0e H \u7684\u5173\u7cfb&#xff0c;\u6536\u7f29\u5de6 \/ \u53f3\u8fb9\u754c&#xff1b;<\/li>\n<li>\u91cd\u590d\u76f4\u5230 left&#061;&#061;right&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<li>\u8f93\u51fa\u7ed3\u679c&#xff1a;left&#xff08;\u5373\u6700\u5c0f\u53ef\u884c\u901f\u5ea6&#xff09;&#xff1b;<\/li>\n<li>\u5f02\u5e38\u5904\u7406&#xff1a;\u6355\u83b7\u6240\u6709\u8f93\u5165\u76f8\u5173\u5f02\u5e38&#xff0c;\u7edf\u4e00\u8fd4\u56de &#8211; 1\u3002<\/li>\n<h3>\u4e94\u3001\u4ee3\u7801\u5b9e\u73b0<\/h3>\n<p>import java.util.Scanner;<\/p>\n<p>public class PeachEatingSpeed {<br \/>\n    public static void main(String[] args) {<br \/>\n        Scanner scanner &#061; new Scanner(System.in);<br \/>\n        try {<br \/>\n            \/\/ 1. \u8bfb\u53d6\u5e76\u5904\u7406\u7b2c\u4e00\u884c&#xff08;\u87e0\u6843\u6570\u91cf&#xff09;<br \/>\n            String[] peachStrs &#061; scanner.nextLine().trim().split(&#034;\\\\\\\\s&#043;&#034;);<br \/>\n            int[] peaches &#061; new int[peachStrs.length];<br \/>\n            int maxPeach &#061; 0;<br \/>\n            for (int i &#061; 0; i &lt; peachStrs.length; i&#043;&#043;) {<br \/>\n                peaches[i] &#061; Integer.parseInt(peachStrs[i]);<br \/>\n                \/\/ \u6821\u9a8c\u87e0\u6843\u6570\u662f\u5426\u5927\u4e8e0<br \/>\n                if (peaches[i] &lt;&#061; 0) {<br \/>\n                    System.out.println(-1);<br \/>\n                    return;<br \/>\n                }<br \/>\n                maxPeach &#061; Math.max(maxPeach, peaches[i]);<br \/>\n            }<\/p>\n<p>            \/\/ 2. \u8bfb\u53d6\u5e76\u5904\u7406\u7b2c\u4e8c\u884c&#xff08;\u65f6\u95f4H&#xff09;<br \/>\n            int H &#061; Integer.parseInt(scanner.nextLine().trim());<br \/>\n            \/\/ \u6821\u9a8cH\u662f\u5426\u4e0d\u5c0f\u4e8e\u6811\u7684\u6570\u91cf<br \/>\n            if (H &lt; peaches.length) {<br \/>\n                System.out.println(-1);<br \/>\n                return;<br \/>\n            }<\/p>\n<p>            \/\/ 3. \u4e8c\u5206\u67e5\u627e\u6700\u5c0f\u901f\u5ea6<br \/>\n            int left &#061; 1;<br \/>\n            int right &#061; maxPeach;<br \/>\n            while (left &lt; right) {<br \/>\n                int mid &#061; left &#043; (right &#8211; left) \/ 2; \/\/ \u907f\u514d(left&#043;right)\u6ea2\u51fa<br \/>\n                int totalTime &#061; calculateTotalTime(peaches, mid);<br \/>\n                if (totalTime &lt;&#061; H) {<br \/>\n                    \/\/ \u901f\u5ea6\u53ef\u884c&#xff0c;\u5c1d\u8bd5\u627e\u66f4\u5c0f\u7684<br \/>\n                    right &#061; mid;<br \/>\n                } else {<br \/>\n                    \/\/ \u901f\u5ea6\u4e0d\u591f&#xff0c;\u9700\u8981\u589e\u5927<br \/>\n                    left &#061; mid &#043; 1;<br \/>\n                }<br \/>\n            }<\/p>\n<p>            \/\/ 4. \u8f93\u51fa\u6700\u5c0f\u901f\u5ea6<br \/>\n            System.out.println(left);<\/p>\n<p>        } catch (Exception e) {<br \/>\n            \/\/ \u8f93\u5165\u5f02\u5e38&#xff08;\u5982\u975e\u6570\u5b57\u3001\u683c\u5f0f\u9519\u8bef\u7b49&#xff09;<br \/>\n            System.out.println(-1);<br \/>\n        } finally {<br \/>\n            scanner.close();<br \/>\n        }<br \/>\n    }<\/p>\n<p>    \/**<br \/>\n     * \u8ba1\u7b97\u4ee5\u6307\u5b9a\u901f\u5ea6K\u5403\u5b8c\u5168\u90e8\u87e0\u6843\u7684\u603b\u8017\u65f6<br \/>\n     * &#064;param peaches \u6bcf\u68f5\u6811\u7684\u87e0\u6843\u6570\u91cf<br \/>\n     * &#064;param K \u8fdb\u98df\u901f\u5ea6<br \/>\n     * &#064;return 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