{"id":274,"date":"2025-07-17T07:37:19","date_gmt":"2025-07-17T07:37:19","guid":{"rendered":"http:\/\/west.wangyuansheng.cn\/?p=274"},"modified":"2025-07-18T06:02:07","modified_gmt":"2025-07-18T06:02:07","slug":"%e4%b9%b0%e6%96%87%e5%85%b7-2","status":"publish","type":"post","link":"http:\/\/west.wangyuansheng.cn\/?p=274","title":{"rendered":"\u4e70\u6587\u5177"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"761\" height=\"624\" src=\"http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/07\/1-1.png\" alt=\"\" class=\"wp-image-275\" srcset=\"http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/07\/1-1.png 761w, http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/07\/1-1-300x246.png 300w\" sizes=\"auto, (max-width: 761px) 100vw, 761px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u95ee\u9898\u5206\u6790<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u82b1\u82b1\u4e70\u4e861\u652f\u7b14\u548c1\u5757\u6a61\u76ae\uff0c\u7b14\u7684\u4ef7\u683c\u662f ( x ) \u5143\uff0c\u6a61\u76ae\u7684\u4ef7\u683c\u662f ( y ) \u5143\u3002\u82b1\u82b1\u4ed8\u7ed9\u8001\u677f ( n ) \u5143\u94b1\uff0c\u9700\u8981\u8ba1\u7b97\u8001\u677f\u5e94\u8be5\u627e\u56de\u591a\u5c11\u94b1\u3002\u9898\u76ee\u4fdd\u8bc1 ( n ) \u81f3\u5c11\u7b49\u4e8e\u7b14\u548c\u6a61\u76ae\u7684\u603b\u4ef7\uff08( n &gt;= x + y )\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u53ef\u4ee5\u628a\u8fd9\u4e2a\u95ee\u9898\u5206\u89e3\u6210\u51e0\u4e2a\u7b80\u5355\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u8ba1\u7b97\u82b1\u82b1\u4e70\u4e1c\u897f\u603b\u5171\u82b1\u4e86\u591a\u5c11\u94b1\uff1a\u7b14\u7684\u94b1 + \u6a61\u76ae\u7684\u94b1<\/li>\n\n\n\n<li>\u7528\u82b1\u82b1\u4ed8\u7684\u94b1\u51cf\u53bb\u603b\u82b1\u8d39\uff0c\u5c31\u662f\u8001\u677f\u5e94\u8be5\u627e\u56de\u7684\u94b1<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b14\u7684\u4ef7\u683c ( x = 2 ) \u5143<\/li>\n\n\n\n<li>\u6a61\u76ae\u7684\u4ef7\u683c ( y = 1 ) \u5143<\/li>\n\n\n\n<li>\u82b1\u82b1\u4ed8\u4e86 ( n = 10 ) \u5143<\/li>\n\n\n\n<li>\u603b\u82b1\u8d39 = 2 + 1 = 3 \u5143<\/li>\n\n\n\n<li>\u627e\u56de\u7684\u94b1 = 10 &#8211; 3 = 7 \u5143<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u5efa\u7acb\u6a21\u578b<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8f93\u5165<\/strong>\uff1a\u4e09\u4e2a\u6574\u6570\uff0c\u5206\u522b\u4ee3\u8868\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>( x )\uff1a\u7b14\u7684\u5355\u4ef7<\/li>\n\n\n\n<li>( y )\uff1a\u6a61\u76ae\u7684\u5355\u4ef7<\/li>\n\n\n\n<li>( n )\uff1a\u82b1\u82b1\u4ed8\u7ed9\u8001\u677f\u7684\u94b1<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8ba1\u7b97\u8fc7\u7a0b<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u603b\u82b1\u8d39 = ( x + y )<\/li>\n\n\n\n<li>\u627e\u56de\u7684\u94b1 = ( n &#8211; (x + y) )<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8f93\u51fa<\/strong>\uff1a\u4e00\u4e2a\u6574\u6570\uff0c\u8868\u793a\u8001\u677f\u5e94\u8be5\u627e\u56de\u7684\u94b1<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e2a\u6a21\u578b\u975e\u5e38\u76f4\u89c2\uff1a\u4e70\u4e1c\u897f\u8981\u4ed8\u94b1\uff0c\u591a\u4ed8\u7684\u94b1\u5c31\u662f\u627e\u56de\u7684\u94b1\u3002\u5c31\u50cf\u751f\u6d3b\u4e2d\u4e70\u4e1c\u897f\u627e\u96f6\u4e00\u6837\u7b80\u5355\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7f16\u5199\u7a0b\u5e8f\uff08C++\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u662f\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684C++\u7a0b\u5e8f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;bits\/stdc++.h&gt;\nusing namespace std;\n\nint main() {\n    \/\/ \u5b9a\u4e49\u4e09\u4e2a\u53d8\u91cf\uff1a\u7b14\u7684\u5355\u4ef7x\uff0c\u6a61\u76ae\u7684\u5355\u4ef7y\uff0c\u82b1\u82b1\u4ed8\u7684\u94b1n\n    int x, y, n;\n    \/\/ \u4ece\u8f93\u5165\u8bfb\u53d6\u4e09\u4e2a\u6574\u6570\n    cin &gt;&gt; x &gt;&gt; y &gt;&gt; n;\n    \/\/ \u8ba1\u7b97\u8001\u677f\u5e94\u8be5\u627e\u56de\u7684\u94b1\n    int change = n - (x + y);\n    \/\/ \u8f93\u51fa\u7ed3\u679c\n    cout &lt;&lt; change &lt;&lt; endl;\n    return 0;\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u4fdd\u5b58 \u7f16\u8bd1 \u8fd0\u884c<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u7a0b\u5e8f\u8bf4\u660e<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8f93\u5165\u5904\u7406<\/strong>\uff1a\u7a0b\u5e8f\u8bfb\u53d6\u4e09\u4e2a\u6574\u6570\uff0c\u5206\u522b\u8d4b\u503c\u7ed9\u53d8\u91cf <code>x<\/code>\uff08\u7b14\u7684\u5355\u4ef7\uff09\u3001<code>y<\/code>\uff08\u6a61\u76ae\u7684\u5355\u4ef7\uff09\u548c <code>n<\/code>\uff08\u82b1\u82b1\u4ed8\u7684\u94b1\uff09\u3002<\/li>\n\n\n\n<li><strong>\u8ba1\u7b97\u8fc7\u7a0b<\/strong>\uff1a\u7a0b\u5e8f\u8ba1\u7b97 <code>n - (x + y)<\/code>\uff0c\u5f97\u5230\u8001\u677f\u5e94\u8be5\u627e\u56de\u7684\u94b1\u3002<\/li>\n\n\n\n<li><strong>\u8f93\u51fa\u7ed3\u679c<\/strong>\uff1a\u7a0b\u5e8f\u76f4\u63a5\u8f93\u51fa\u8ba1\u7b97\u51fa\u7684\u627e\u56de\u91d1\u989d\u3002<\/li>\n\n\n\n<li><strong>\u6ce8\u610f<\/strong>\uff1a\u9898\u76ee\u4fdd\u8bc1 ( n \\geq x + y )\uff0c\u6240\u4ee5\u4e0d\u9700\u8981\u68c0\u67e5\u627e\u56de\u7684\u94b1\u662f\u5426\u4e3a\u8d1f\u6570\u3002<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u8fd0\u884c\u793a\u4f8b<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8f93\u5165<\/strong>\uff1a<code>2 1 10<\/code><\/li>\n\n\n\n<li><strong>\u8ba1\u7b97\u8fc7\u7a0b<\/strong>\uff1a<\/li>\n\n\n\n<li>\u603b\u82b1\u8d39 = 2 + 1 = 3<\/li>\n\n\n\n<li>\u627e\u56de\u7684\u94b1 = 10 &#8211; 3 = 7<\/li>\n\n\n\n<li><strong>\u8f93\u51fa<\/strong>\uff1a<code>7<\/code><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u95ee\u9898\u5206\u6790 \u82b1\u82b1\u4e70\u4e861\u652f\u7b14\u548c1\u5757\u6a61\u76ae\uff0c\u7b14\u7684\u4ef7\u683c\u662f (&#8230; <a class=\"read-more\" href=\"http:\/\/west.wangyuansheng.cn\/?p=274\">\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-274","post","type-post","status-publish","format-standard","hentry","category-problem"],"_links":{"self":[{"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts\/274","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=274"}],"version-history":[{"count":2,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts\/274\/revisions"}],"predecessor-version":[{"id":347,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts\/274\/revisions\/347"}],"wp:attachment":[{"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=274"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=274"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}