{"id":549,"date":"2018-12-31T22:18:05","date_gmt":"2018-12-31T14:18:05","guid":{"rendered":"http:\/\/SmokeyDays.top\/wordpress\/?p=549"},"modified":"2018-12-31T22:18:05","modified_gmt":"2018-12-31T14:18:05","slug":"lp2763-%e7%bd%91%e7%bb%9c%e6%b5%8124%e9%a2%98-%e8%af%95%e9%a2%98%e5%ba%93%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"http:\/\/SmokeyDays.top\/wordpress\/2018\/12\/31\/lp2763-%e7%bd%91%e7%bb%9c%e6%b5%8124%e9%a2%98-%e8%af%95%e9%a2%98%e5%ba%93%e9%97%ae%e9%a2%98\/","title":{"rendered":"lp2763 \u7f51\u7edc\u6d4124\u9898-\u8bd5\u9898\u5e93\u95ee\u9898"},"content":{"rendered":"\n

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\n\u6bcf\u4e2a\u79cd\u7c7b\u8fde\u4e00\u6761\u5bb9\u91cf\u4e3a\u8fd9\u4e2a\u79cd\u7c7b\u9700\u8981\u7684\u9009\u53d6\u6b21\u6570\u7684\u8fb9\u5230\u6c47\u70b9\uff0c\u8868\u793a\u8fd9\u4e2a\u79cd\u7c7b\u6700\u591a\u9700\u8981\u88ab\u9009\u53d6\u7684\u6b21\u6570\u3002
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#include<iostream>\n#include<cstdio>\n#include<queue>\nconst int INF=0x3f3f3f3f;\n\ninline int Min(int A,int B){\n\treturn A<B?A:B;\n}\n\nstruct ee{\n\tint v;\n\tint w;\n\tint nxt;\n}e[40005];\nint h[2005],et=-1;\nint dep[2005],nw[2005];\n\ninline void Eadd(int U,int V,int W){\n\te[++et]=(ee){V,W,h[U]};\n\th[U]=et;\n}\n\ninline void add(int U,int V,int W){\n\tEadd(U,V,W);\n\tEadd(V,U,0); \n}\n\nint n,m,s,t,Sans=0,tot; \n\nstd::queue<int> q;\ninline bool bfs(){\n\tfor(int i=1;i<=t;++i){\n\t\tdep[i]=INF;\n\t\tnw[i]=h[i];\n\t}\n\twhile(!q.empty()){\n\t\tq.pop();\n\t}\n\tdep[s]=0;\n\tq.push(s);\n\tint p;\n\twhile(!q.empty()){\n\t\tp=q.front();\n\t\tq.pop();\n\t\tfor(int i=h[p];i>=0;i=e[i].nxt){\n\t\t\tif(dep[e[i].v]==INF&&e[i].w){\n\t\t\t\tdep[e[i].v]=dep[p]+1;\n\t\t\t\tq.push(e[i].v);\n\t\t\t}\n\t\t}\n\t}\n\treturn dep[t]<INF;\n} \n\/\/V\u8868\u793a\u4ece\u6e90\u70b9\u5230\u5f53\u524d\u8def\u5f84\u4e0a\u7684\u5269\u4f59\u6d41\u91cf\uff0ccnt\u8868\u793a\u8fd9\u4e2a\u70b9\u5411\u540e\u6d41\u4e86\u591a\u5c11\u6d41\u91cf\u3002 \ninline int dfs(int X,int V){\n\tif(V<=0||X==t){\n\t\treturn V;\n\t}\n\tint cnt=0,val;\n\tfor(int i=nw[X];i>=0;i=e[i].nxt){\n\t\tnw[X]=i;\n\t\tif(dep[e[i].v]==dep[X]+1){\n\t\t\tval=dfs(e[i].v,Min(V,e[i].w));\n\t\t\tif(val){\n\t\t\t\tcnt+=val;\n\t\t\t\te[i].w-=val;\n\t\t\t\te[i^1].w+=val;\n\t\t\t\tV-=val;\n\t\t\t\tif(V<=0){\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\treturn cnt;\n}\n\nvoid init(){\n\tscanf(\"%d%d\",&m,&n);\n\ts=m+n+1,t=m+n+2;\n\tfor(int i=1;i<=t;++i){\n\t\th[i]=-1;\n\t}\n\/\/\t\u6ce8\u610f\u521d\u59cb\u5316\u3002 \n\tint p,x;\n\tfor(int i=1;i<=m;++i){\n\t\tscanf(\"%d\",&x);\n\t\tSans+=x;\n\t\tadd(n+i,t,x);\n\t}\n\tfor(int i=1;i<=n;++i){\n\t\tscanf(\"%d\",&p);\n\t\tadd(s,i,1);\n\t\tfor(int j=1;j<=p;++j){\n\t\t\tscanf(\"%d\",&x);\n\t\t\tadd(i,n+x,1);\n\/\/\t\t\t\u6ce8\u610f\u54c8\u5e0c\u3002 \n\t\t}\n\t}\n\tint ans=0;\n\twhile(bfs()){\n\t\tans+=dfs(s,INF);\n\t\tprintf(\"%d\\n\",ans); \n\t}\n\tif(ans<Sans){\n\t\tputs(\"No solution!\");\n\t\treturn;\n\t}\n\tfor(int i=1;i<=m;++i){\n\t\tprintf(\"%d: \",i);\n\t\tfor(int j=h[n+i];j;j=e[j].nxt){\n\t\t\tif((j&1)&&(e[j].w==1)&&(e[j].v!=t)){\n\t\t\t\tprintf(\"%d \",e[j].v);\n\t\t\t}\n\t\t}\n\t\tputs(\"\");\n\t}\n}\n\nint main(){\n\tinit();\n\treturn 0;\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u5bf9\u4e8e\u8fd9\u4e00\u9898\uff0c\u6211\u4eec\u5efa\u4e09\u5c42\u7684\u8fb9\u6765\u63cf\u8ff0\u9898\u76ee\u4e2d\u7684\u7ea6\u675f\u3002 \u5bf9\u4e8e\u6bcf\u9053\u9898\u5efa\u4e00\u4e2a\u70b9\uff0c\u6e90\u70b9\u8fde\u4e00\u6761\u5bb9\u91cf\u4e3a1\u7684\u8fb9\u5230\u6bcf\u4e00\u4e2a\u70b9\uff0c\u8868\u793a\u6bcf\u9053 … <\/p>\n
\u7ee7\u7eed\u9605\u8bfb\u201clp2763 \u7f51\u7edc\u6d4124\u9898-\u8bd5\u9898\u5e93\u95ee\u9898\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[76,8,6,75,78,5],"tags":[],"_links":{"self":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/549"}],"collection":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/comments?post=549"}],"version-history":[{"count":1,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/549\/revisions"}],"predecessor-version":[{"id":550,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/549\/revisions\/550"}],"wp:attachment":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/media?parent=549"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/categories?post=549"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/tags?post=549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}