{"id":218,"date":"2025-09-18T23:18:28","date_gmt":"2025-09-18T15:18:28","guid":{"rendered":"https:\/\/liyongquan.cn\/?p=218"},"modified":"2025-09-18T23:24:14","modified_gmt":"2025-09-18T15:24:14","slug":"cf1051-div2-a-%e5%a4%a7%e5%ad%a6%e7%ac%ac%e4%b8%80%e9%81%93ac","status":"publish","type":"post","link":"https:\/\/liyongquan.cn\/?p=218","title":{"rendered":"cf1051.div2.A&#8211;\u5927\u5b66\u7b2c\u4e00\u9053ac"},"content":{"rendered":"\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/codeforces.com\/contest\/2143\/problem\/A\" target=\"_blank\" rel=\"noreferrer noopener\">\u9898\u76ee<\/a><\/div>\n<\/div>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;bits\/stdc++.h>\nusing namespace std;\nint a&#91;101];\nint main(){\n\tint t;\n\tcin>>t;\n\twhile(t--){\n\t\tint n,pd=2,x=0,b=0;\n\t\tcin>>n;\n\t\tfor(int i=1;i&lt;=n;i++){\n\t\t\tcin>>a&#91;i];\n\t\t}\n\t\tfor(int i=1;i&lt;=n;i++){\n\t\t\tif(a&#91;i]>a&#91;i-1]&amp;&amp;pd==2)pd=0;\n\t\t\tif(a&#91;i]&lt;a&#91;i-1]&amp;&amp;pd==2){\n\t\t\t\tcout&lt;&lt;\"no\"&lt;&lt;endl;b=1;\n\t\t\t\tbreak ;\n\t\t\t}\t\t\t\n\t\t\tif(pd==0&amp;&amp;a&#91;i]&lt;a&#91;i-1]&amp;&amp;x==0){\n\t\t\t\tx=1;pd=1;\n\t\t\t}\n\t\t\tif(pd==1&amp;&amp;a&#91;i]>a&#91;i-1]&amp;&amp;x==1){\n\t\t\t\tcout&lt;&lt;\"no\"&lt;&lt;endl;b=1;\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}if(b!=1)cout&lt;&lt;\"yes\"&lt;&lt;endl;\n\t}\n\treturn 0;\n}<\/code><\/pre>\n\n\n\n<p>\u6613\u5f97\uff0c\u5224\u65ad\u662f\u5426\u5355\u589e\u3001\u5148\u5355\u589e\u518d\u5355\u51cf\u3001\u5355\u51cf\u4ec5\u6b64\u4e09\u79cd\u60c5\u51b5\u5373\u53ef<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/liyongquan.cn\/wp-content\/uploads\/2025\/09\/\u5927\u5b66\u7b2c\u4e00\u9053ac-1024x159.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"159\" data-original=\"https:\/\/liyongquan.cn\/wp-content\/uploads\/2025\/09\/\u5927\u5b66\u7b2c\u4e00\u9053ac-1024x159.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-224\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6613\u5f97\uff0c\u5224\u65ad\u662f\u5426\u5355\u589e\u3001\u5148\u5355\u589e\u518d\u5355\u51cf\u3001\u5355\u51cf\u4ec5\u6b64\u4e09\u79cd\u60c5\u51b5\u5373\u53ef<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-218","post","type-post","status-publish","format-standard","hentry","category-4"],"_links":{"self":[{"href":"https:\/\/liyongquan.cn\/index.php?rest_route=\/wp\/v2\/posts\/218","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/liyongquan.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/liyongquan.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/liyongquan.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/liyongquan.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=218"}],"version-history":[{"count":4,"href":"https:\/\/liyongquan.cn\/index.php?rest_route=\/wp\/v2\/posts\/218\/revisions"}],"predecessor-version":[{"id":225,"href":"https:\/\/liyongquan.cn\/index.php?rest_route=\/wp\/v2\/posts\/218\/revisions\/225"}],"wp:attachment":[{"href":"https:\/\/liyongquan.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/liyongquan.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/liyongquan.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}