{"id":78422,"date":"2026-02-27T13:25:22","date_gmt":"2026-02-27T05:25:22","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/78422.html"},"modified":"2026-02-27T13:25:22","modified_gmt":"2026-02-27T05:25:22","slug":"%e6%89%93%e5%8d%a1%e4%bf%a1%e5%a5%a5%e5%88%b7%e9%a2%98%ef%bc%882877%ef%bc%89%e7%94%a8c%e5%ae%9e%e7%8e%b0%e4%bf%a1%e5%a5%a5%e9%a2%98-p5054-coci-2017-2018-7-dostavljac","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/78422.html","title":{"rendered":"\u6253\u5361\u4fe1\u5965\u5237\u9898\uff082877\uff09\u7528C++\u5b9e\u73b0\u4fe1\u5965\u9898 P5054 [COCI 2017\/2018 #7] Dostavlja\u010d"},"content":{"rendered":"

P5054 [COCI 2017\/2018 #7] Dostavlja\u010d<\/h2>\n

\u9898\u76ee\u63cf\u8ff0<\/h3>\n

\u81ea\u4ece Kre\u0161o \u5f00\u59cb\u79cd\u690d\u8fa3\u6912\u4ee5\u6765，\u514b\u7f57\u5730\u4e9a\u5404\u5730\u7684 NN<\/span><\/span>N<\/span><\/span><\/span><\/span><\/span> \u5bb6\u9910\u9986\u90fd\u5bf9\u4ed6\u7684\u8fa3\u6912\u611f\u5174\u8da3，\u56e0\u6b64\u4ed6\u4eec\u53ef\u4ee5\u7528\u771f\u6b63\u7684\u9999\u6599\u6765\u4e30\u5bcc\u4ed6\u4eec\u7684\u83dc\u80b4\u3002\u7531\u4e8e\u9700\u6c42\u91cf\u5f88\u5927，Kre\u0161o \u51b3\u5b9a\u5f00\u59cb\u4f5c\u4e3a\u8fa3\u6912\u7684\u9001\u8d27\u5458\u3002<\/p>\n

\u9910\u9986\u7528\u4ece 11<\/span><\/span>1<\/span><\/span><\/span><\/span><\/span> \u5230 NN<\/span><\/span>N<\/span><\/span><\/span><\/span><\/span> \u7684\u6570\u5b57\u8868\u793a，\u5e76\u4e14\u4e0e N\u22121N – 1<\/span><\/span>N<\/span><\/span>\u2212<\/span><\/span><\/span><\/span>1<\/span><\/span><\/span><\/span><\/span> \u4e2a\u9053\u8def\u76f8\u4e92\u8fde\u63a5，\u4f7f\u5f97\u53ef\u4ee5\u5728\u4efb\u4f55\u4e24\u4e2a\u9910\u9986\u4e4b\u95f4\u65c5\u884c\u3002Kre\u0161o \u5728 11<\/span><\/span>1<\/span><\/span><\/span><\/span><\/span> \u53f7\u9910\u5385\u5f00\u59cb\u4ed6\u7684\u65c5\u7a0b\u3002\u5728\u4e00\u4e2a\u5355\u4f4d\u7684\u65f6\u95f4\u91cc，\u4ed6\u53ef\u4ee5\u5f00\u8f66\u5230\u76f8\u90bb\u7684\u9910\u5385\u6216\u5c06\u8fa3\u6912\u9001\u5230\u73b0\u5728\u7684\u9910\u9986\u3002\u5bf9\u4e8e\u6bcf\u5bb6\u9910\u5385，\u6211\u4eec\u90fd\u77e5\u9053\u6240\u9700\u7684\u8fa3\u6912\u6570\u91cf AiA_i<\/span><\/span>A<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3002<\/p>\n

\u7531\u4e8e\u4ea4\u4ed8\u8d27\u7269\u5f88\u7d2f，Kre\u0161o \u51b3\u5b9a\u5728\u4ea4\u4ed8\u548c\u65c5\u884c\u4e0a\u82b1\u8d39\u603b\u5171 MM<\/span><\/span>M<\/span><\/span><\/span><\/span><\/span> \u4e2a\u5355\u4f4d\u7684\u65f6\u95f4，\u4e4b\u540e\u4ed6\u8ba1\u5212\u4f11\u606f\u4e00\u4e0b\u3002<\/p>\n

\u786e\u5b9a Kre\u0161o \u5728\u7ed9\u5b9a\u65f6\u95f4\u8303\u56f4\u5185\u53ef\u4ee5\u63d0\u4f9b\u7684\u6700\u5927\u8fa3\u6912\u6570\u91cf\u3002\u4f60\u53ef\u4ee5\u5047\u8bbe Kre\u0161o \u603b\u662f\u5e26\u6709\u65e0\u9650\u91cf\u7684\u8fa3\u6912\u3002<\/p>\n

\u8f93\u5165\u683c\u5f0f<\/h3>\n

\u7b2c\u4e00\u884c\u8f93\u5165\u5305\u542b\u4e24\u4e2a\u6574\u6570 NN<\/span><\/span>N<\/span><\/span><\/span><\/span><\/span> \u548c MM<\/span><\/span>M<\/span><\/span><\/span><\/span><\/span>（1\u2264N,M\u22645001 \\\\le N, M \\\\le 500<\/span><\/span>1<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>N<\/span>,<\/span><\/span>M<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>500<\/span><\/span><\/span><\/span><\/span>），\u9910\u9986\u6570\u91cf\u548c Kre\u0161o \u8ba1\u5212\u7528\u4e8e\u4ea4\u4ed8\u8fa3\u6912\u7684\u65f6\u95f4\u3002<\/p>\n

\u7b2c\u4e8c\u884c\u8f93\u5165\u5305\u542b NN<\/span><\/span>N<\/span><\/span><\/span><\/span><\/span> \u4e2a\u6574\u6570 AiA_i<\/span><\/span>A<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>（1\u2264Ai\u22641061 \\\\le A_i \\\\le 10^6<\/span><\/span>1<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>A<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u2264<\/span><\/span><\/span><\/span>1<\/span>0<\/span><\/span>6<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>），\u7528 ii<\/span><\/span>i<\/span><\/span><\/span><\/span><\/span> \u8868\u793a\u7684\u9910\u9986\u6240\u9700\u7684\u8fa3\u6912\u6570\u91cf（1\u2264i\u2264N1 \\\\le i \\\\le N<\/span><\/span>1<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>i<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>N<\/span><\/span><\/span><\/span><\/span>）\u3002<\/p>\n

\u4ee5\u4e0b N\u22121N – 1<\/span><\/span>N<\/span><\/span>\u2212<\/span><\/span><\/span><\/span>1<\/span><\/span><\/span><\/span><\/span> \u884c\u4e2d\u7684\u6bcf\u4e00\u884c\u5305\u542b\u4e24\u4e2a\u6574\u6570 UU<\/span><\/span>U<\/span><\/span><\/span><\/span><\/span> \u548c VV<\/span><\/span>V<\/span><\/span><\/span><\/span><\/span>（1\u2264U,V\u2264N1 \\\\le U, V \\\\le N<\/span><\/span>1<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>U<\/span>,<\/span><\/span>V<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>N<\/span><\/span><\/span><\/span><\/span>，U\u2260VU \\\\ne V<\/span><\/span>U<\/span><\/span><\/span>\ue020<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>=<\/span><\/span><\/span><\/span><\/span>V<\/span><\/span><\/span><\/span><\/span>），\u5176\u8868\u793a\u9910\u9986 UU<\/span><\/span>U<\/span><\/span><\/span><\/span><\/span> \u548c VV<\/span><\/span>V<\/span><\/span><\/span><\/span><\/span> \u4e4b\u95f4\u7684\u9053\u8def\u3002<\/p>\n

\u8f93\u51fa\u683c\u5f0f<\/h3>\n

\u60a8\u5fc5\u987b\u8f93\u51fa Kre\u0161o \u5728\u7ed9\u5b9a\u65f6\u95f4\u8303\u56f4\u5185\u53ef\u4ee5\u63d0\u4f9b\u7684\u6700\u5927\u91cf\u7684\u8fa3\u6912\u3002<\/p>\n

\u8f93\u5165\u8f93\u51fa\u6837\u4f8b #1<\/h3>\n

\u8f93\u5165 #1<\/h4>\n

3 5
\n9 2 5
\n1 2
\n1 3<\/p>\n

\u8f93\u51fa #1<\/h4>\n

14<\/p>\n

\u8f93\u5165\u8f93\u51fa\u6837\u4f8b #2<\/h3>\n

\u8f93\u5165 #2<\/h4>\n

4 5
\n1 1 1 2
\n1 2
\n2 3
\n3 4<\/p>\n

\u8f93\u51fa #2<\/h4>\n

3<\/p>\n

\u8f93\u5165\u8f93\u51fa\u6837\u4f8b #3<\/h3>\n

\u8f93\u5165 #3<\/h4>\n

5 10
\n1 3 5 2 4
\n5 2
\n3 1
\n2 3
\n4 2<\/p>\n

\u8f93\u51fa #3<\/h4>\n

15<\/p>\n

C++\u5b9e\u73b0<\/h3>\n

#<\/span>include<\/span> <bits\/stdc++.h><\/span><\/span>
\n#<\/span>define<\/span> int<\/span> long<\/span> long<\/span><\/span><\/span>
\nusing<\/span> namespace<\/span> std;<\/span>
\nconst<\/span> int<\/span> N=<\/span>505<\/span>;<\/span>
\nint<\/span> f[<\/span>N]<\/span>[<\/span>N]<\/span>[<\/span>2<\/span>]<\/span>,<\/span>n,<\/span>m,<\/span>w[<\/span>N]<\/span>;<\/span>
\nvector <<\/span>int<\/span>><\/span> a[<\/span>N]<\/span>;<\/span>
\nvoid<\/span> dfs<\/span>(<\/span>int<\/span> u,<\/span>int<\/span> fa)<\/span> {<\/span>
\nfor<\/span>(<\/span>int<\/span> v:<\/span>a[<\/span>u]<\/span>)<\/span> {<\/span>
\nif<\/span>(<\/span>v==<\/span>fa)<\/span> continue<\/span> ;<\/span>
\ndfs<\/span>(<\/span>v,<\/span>u)<\/span>;<\/span>
\nfor<\/span>(<\/span>int<\/span> i=<\/span>m;<\/span>i>=<\/span>0<\/span>;<\/span>i—<\/span>)<\/span> {<\/span>
\nfor<\/span>(<\/span>int<\/span> j=<\/span>m;<\/span>j>=<\/span>0<\/span>;<\/span>j—<\/span>)<\/span> {<\/span>
\nif<\/span>(<\/span>i+<\/span>j+<\/span>2<\/span><=<\/span>m)<\/span> {<\/span>
\nf[<\/span>u]<\/span>[<\/span>i+<\/span>j+<\/span>2<\/span>]<\/span>[<\/span>0<\/span>]<\/span>=<\/span>max<\/span>(<\/span>f[<\/span>u]<\/span>[<\/span>i+<\/span>j+<\/span>2<\/span>]<\/span>[<\/span>0<\/span>]<\/span>,<\/span>f[<\/span>u]<\/span>[<\/span>i]<\/span>[<\/span>0<\/span>]<\/span>+<\/span>f[<\/span>v]<\/span>[<\/span>j]<\/span>[<\/span>1<\/span>]<\/span>)<\/span>;<\/span>
\nf[<\/span>u]<\/span>[<\/span>i+<\/span>j+<\/span>2<\/span>]<\/span>[<\/span>1<\/span>]<\/span>=<\/span>max<\/span>(<\/span>f[<\/span>u]<\/span>[<\/span>i+<\/span>j+<\/span>2<\/span>]<\/span>[<\/span>1<\/span>]<\/span>,<\/span>f[<\/span>u]<\/span>[<\/span>i]<\/span>[<\/span>1<\/span>]<\/span>+<\/span>f[<\/span>v]<\/span>[<\/span>j]<\/span>[<\/span>1<\/span>]<\/span>)<\/span>;<\/span>
\n}<\/span>
\nif<\/span>(<\/span>i+<\/span>j+<\/span>1<\/span><=<\/span>m)<\/span> f[<\/span>u]<\/span>[<\/span>i+<\/span>j+<\/span>1<\/span>]<\/span>[<\/span>0<\/span>]<\/span>=<\/span>max<\/span>(<\/span>f[<\/span>u]<\/span>[<\/span>i+<\/span>j+<\/span>1<\/span>]<\/span>[<\/span>0<\/span>]<\/span>,<\/span>f[<\/span>u]<\/span>[<\/span>i]<\/span>[<\/span>1<\/span>]<\/span>+<\/span>f[<\/span>v]<\/span>[<\/span>j]<\/span>[<\/span>0<\/span>]<\/span>)<\/span>;<\/span>
\n}<\/span>
\n}<\/span>
\n}<\/span>
\n}<\/span>
\nsigned<\/span> main<\/span>(<\/span>)<\/span> {<\/span>
\nios::<\/span>sync_with_stdio<\/span>(<\/span>0<\/span>)<\/span>;<\/span>
\ncin.<\/span>tie<\/span>(<\/span>0<\/span>)<\/span>;<\/span> cout.<\/span>tie<\/span>(<\/span>0<\/span>)<\/span>;<\/span>
\ncin>><\/span>n>><\/span>m;<\/span>
\nfor<\/span>(<\/span>int<\/span> i=<\/span>1<\/span>;<\/span>i<=<\/span>n;<\/span>i++<\/span>)<\/span> {<\/span>
\ncin>><\/span>w[<\/span>i]<\/span>;<\/span>
\nfor<\/span>(<\/span>int<\/span> j=<\/span>1<\/span>;<\/span>j<=<\/span>m;<\/span>j++<\/span>)<\/span> f[<\/span>i]<\/span>[<\/span>j]<\/span>[<\/span>1<\/span>]<\/span>=<\/span>w[<\/span>i]<\/span>;<\/span>
\nfor<\/span>(<\/span>int<\/span> j=<\/span>1<\/span>;<\/span>j<=<\/span>m;<\/span>j++<\/span>)<\/span> f[<\/span>i]<\/span>[<\/span>j]<\/span>[<\/span>0<\/span>]<\/span>=<\/span>w[<\/span>i]<\/span>;<\/span>
\n}<\/span>
\nfor<\/span>(<\/span>int<\/span> i=<\/span>1<\/span>;<\/span>i<<\/span>n;<\/span>i++<\/span>)<\/span> {<\/span>
\nint<\/span> u,<\/span>v;<\/span>
\ncin>><\/span>u>><\/span>v;<\/span>
\na[<\/span>u]<\/span>.<\/span>push_back<\/span>(<\/span>v)<\/span>;<\/span>
\na[<\/span>v]<\/span>.<\/span>push_back<\/span>(<\/span>u)<\/span>;<\/span>
\n}<\/span>
\ndfs<\/span>(<\/span>1<\/span>,<\/span>0<\/span>)<\/span>;<\/span>
\ncout<<<\/span>max<\/span>(<\/span>f[<\/span>1<\/span>]<\/span>[<\/span>m]<\/span>[<\/span>1<\/span>]<\/span>,<\/span>f[<\/span>1<\/span>]<\/span>[<\/span>m]<\/span>[<\/span>0<\/span>]<\/span>)<\/span>;<\/span>
\nreturn<\/span> 0<\/span>;<\/span>
\n}<\/span><\/p>\n

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\u540e\u7eed<\/h3>\n

\u63a5\u4e0b\u6765\u6211\u4f1a\u4e0d\u65ad\u7528C++\u6765\u5b9e\u73b0\u4fe1\u5965\u6bd4\u8d5b\u4e2d\u7684\u7b97\u6cd5\u9898\u3001GESP\u8003\u7ea7\u7f16\u7a0b\u9898\u5b9e\u73b0\u3001\u767d\u540d\u5355\u8d5b\u4e8b\u8003\u9898\u5b9e\u73b0，\u8bb0\u5f55\u65e5\u5e38\u7684\u7f16\u7a0b\u751f\u6d3b\u3001\u6bd4\u8d5b\u5fc3\u5f97，\u611f\u5174\u8da3\u7684\u8bf7\u5173\u6ce8，\u6211\u540e\u7eed\u5c06\u7ee7\u7eed\u5206\u4eab\u76f8\u5173\u5185\u5bb9<\/p>\n","protected":false},"excerpt":{"rendered":"

P5054 [COCI 2017\/2018 #7] Dostavlja\u010d
\n\u9898\u76ee\u63cf\u8ff0
\n\u81ea\u4ece Kre\u0161o \u5f00\u59cb\u79cd\u690d\u8fa3\u6912\u4ee5\u6765，\u514b\u7f57\u5730\u4e9a\u5404\u5730\u7684 NNN \u5bb6\u9910\u9986\u90fd\u5bf9\u4ed6\u7684\u8fa3\u6912\u611f\u5174\u8da3，\u56e0\u6b64\u4ed6\u4eec\u53ef\u4ee5\u7528\u771f\u6b63\u7684\u9999\u6599\u6765\u4e30\u5bcc\u4ed6\u4eec\u7684\u83dc\u80b4\u3002\u7531\u4e8e\u9700\u6c42\u91cf\u5f88\u5927，Kre\u0161o \u51b3\u5b9a\u5f00\u59cb\u4f5c\u4e3a\u8fa3\u6912\u7684\u9001\u8d27\u5458\u3002
\n\u9910\u9986\u7528\u4ece 111 \u5230 NNN \u7684\u6570\u5b57\u8868\u793a，\u5e76\u4e14\u4e0e N\u22121N – 1N\u22121 \u4e2a\u9053\u8def\u76f8\u4e92\u8fde\u63a5，\u4f7f\u5f97\u53ef\u4ee5\u5728\u4efb\u4f55\u4e24\u4e2a\u9910\u9986\u4e4b\u95f4\u65c5\u884c\u3002Kre\u0161o \u5728 11<\/p>\n","protected":false},"author":2,"featured_media":78421,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55,190,1813,427,4405],"topic":[],"class_list":["post-78422","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-c","tag-190","tag-1813","tag-427","tag-4405"],"yoast_head":"\n\u6253\u5361\u4fe1\u5965\u5237\u9898\uff082877\uff09\u7528C++\u5b9e\u73b0\u4fe1\u5965\u9898 P5054 [COCI 2017\/2018 #7] Dostavlja\u010d - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/78422.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6253\u5361\u4fe1\u5965\u5237\u9898\uff082877\uff09\u7528C++\u5b9e\u73b0\u4fe1\u5965\u9898 P5054 [COCI 2017\/2018 #7] Dostavlja\u010d - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"P5054 [COCI 2017\/2018 #7] Dostavlja\u010d \u9898\u76ee\u63cf\u8ff0 \u81ea\u4ece Kre\u0161o \u5f00\u59cb\u79cd\u690d\u8fa3\u6912\u4ee5\u6765，\u514b\u7f57\u5730\u4e9a\u5404\u5730\u7684 NNN \u5bb6\u9910\u9986\u90fd\u5bf9\u4ed6\u7684\u8fa3\u6912\u611f\u5174\u8da3，\u56e0\u6b64\u4ed6\u4eec\u53ef\u4ee5\u7528\u771f\u6b63\u7684\u9999\u6599\u6765\u4e30\u5bcc\u4ed6\u4eec\u7684\u83dc\u80b4\u3002\u7531\u4e8e\u9700\u6c42\u91cf\u5f88\u5927，Kre\u0161o \u51b3\u5b9a\u5f00\u59cb\u4f5c\u4e3a\u8fa3\u6912\u7684\u9001\u8d27\u5458\u3002 \u9910\u9986\u7528\u4ece 111 \u5230 NNN \u7684\u6570\u5b57\u8868\u793a，\u5e76\u4e14\u4e0e N\u22121N - 1N\u22121 \u4e2a\u9053\u8def\u76f8\u4e92\u8fde\u63a5，\u4f7f\u5f97\u53ef\u4ee5\u5728\u4efb\u4f55\u4e24\u4e2a\u9910\u9986\u4e4b\u95f4\u65c5\u884c\u3002Kre\u0161o \u5728 11\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/78422.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-02-27T05:25:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260227052520-69a12ac0df0af.png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/78422.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/78422.html\",\"name\":\"\u6253\u5361\u4fe1\u5965\u5237\u9898\uff082877\uff09\u7528C++\u5b9e\u73b0\u4fe1\u5965\u9898 P5054 [COCI 2017\/2018 #7] Dostavlja\u010d - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-02-27T05:25:22+00:00\",\"dateModified\":\"2026-02-27T05:25:22+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/78422.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/78422.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/78422.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u6253\u5361\u4fe1\u5965\u5237\u9898\uff082877\uff09\u7528C++\u5b9e\u73b0\u4fe1\u5965\u9898 P5054 [COCI 2017\/2018 #7] Dostavlja\u010d\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u6253\u5361\u4fe1\u5965\u5237\u9898\uff082877\uff09\u7528C++\u5b9e\u73b0\u4fe1\u5965\u9898 P5054 [COCI 2017\/2018 #7] Dostavlja\u010d - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/78422.html","og_locale":"zh_CN","og_type":"article","og_title":"\u6253\u5361\u4fe1\u5965\u5237\u9898\uff082877\uff09\u7528C++\u5b9e\u73b0\u4fe1\u5965\u9898 P5054 [COCI 2017\/2018 #7] Dostavlja\u010d - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"P5054 [COCI 2017\/2018 #7] Dostavlja\u010d \u9898\u76ee\u63cf\u8ff0 \u81ea\u4ece Kre\u0161o \u5f00\u59cb\u79cd\u690d\u8fa3\u6912\u4ee5\u6765，\u514b\u7f57\u5730\u4e9a\u5404\u5730\u7684 NNN \u5bb6\u9910\u9986\u90fd\u5bf9\u4ed6\u7684\u8fa3\u6912\u611f\u5174\u8da3，\u56e0\u6b64\u4ed6\u4eec\u53ef\u4ee5\u7528\u771f\u6b63\u7684\u9999\u6599\u6765\u4e30\u5bcc\u4ed6\u4eec\u7684\u83dc\u80b4\u3002\u7531\u4e8e\u9700\u6c42\u91cf\u5f88\u5927，Kre\u0161o \u51b3\u5b9a\u5f00\u59cb\u4f5c\u4e3a\u8fa3\u6912\u7684\u9001\u8d27\u5458\u3002 \u9910\u9986\u7528\u4ece 111 \u5230 NNN \u7684\u6570\u5b57\u8868\u793a，\u5e76\u4e14\u4e0e N\u22121N - 1N\u22121 \u4e2a\u9053\u8def\u76f8\u4e92\u8fde\u63a5，\u4f7f\u5f97\u53ef\u4ee5\u5728\u4efb\u4f55\u4e24\u4e2a\u9910\u9986\u4e4b\u95f4\u65c5\u884c\u3002Kre\u0161o \u5728 11","og_url":"https:\/\/www.wsisp.com\/helps\/78422.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-02-27T05:25:22+00:00","og_image":[{"url":"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260227052520-69a12ac0df0af.png"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"2 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/78422.html","url":"https:\/\/www.wsisp.com\/helps\/78422.html","name":"\u6253\u5361\u4fe1\u5965\u5237\u9898\uff082877\uff09\u7528C++\u5b9e\u73b0\u4fe1\u5965\u9898 P5054 [COCI 2017\/2018 #7] Dostavlja\u010d - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-02-27T05:25:22+00:00","dateModified":"2026-02-27T05:25:22+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/78422.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/78422.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/78422.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"\u6253\u5361\u4fe1\u5965\u5237\u9898\uff082877\uff09\u7528C++\u5b9e\u73b0\u4fe1\u5965\u9898 P5054 [COCI 2017\/2018 #7] Dostavlja\u010d"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/78422","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=78422"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/78422\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media\/78421"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=78422"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=78422"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=78422"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=78422"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}