{"id":284,"date":"2010-06-15T21:34:00","date_gmt":"2010-06-15T13:34:00","guid":{"rendered":"http:\/\/localhost\/?p=284"},"modified":"2010-06-15T21:34:00","modified_gmt":"2010-06-15T13:34:00","slug":"poi2006szk-schools","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/wjmzbmr\/?p=284","title":{"rendered":"[POI2006]Szk-Schools"},"content":{"rendered":"\n

[POI2006]Szk-Schools <\/p>\n

Time Limit:5000MS Memory Limit:65536K
Total Submit:34 Accepted:21
Case Time Limit:1000MS<\/p>\n

Description <\/strong><\/p>\n

<\/p>\n

Input <\/strong><\/p>\n

<\/p>\n

Output <\/strong><\/p>\n

\u5982\u679c\u6709\u53ef\u884c\u89e3, \u8f93\u51fa\u6700\u5c0f\u4ee3\u4ef7,\u5426\u5219\u8f93\u51faNIE. <\/p>\n

Sample Input
<\/strong><\/p>\n<\/p>\n

Sample Output <\/strong><\/p>\n<\/p>\n

Source
\u8d39\u7528\u6d41TLE\u3002\u3002\u53ea\u597d\u5b66\u4e86\u4e2aKM\u7b97\u6cd5\u6765\u5bf9\u4ed8\u8fd9\u9898\u56e7\u3002\u3002
<\/strong><\/p>\n

#include <vector>#include <algorithm>#include <utility>#include <iostream>#include <cstdio>#include <cmath>#include <cstdlib>#include <cstring>#define rep(i,n) for(int i=0;i<n;i++)#define pb push_back#define Debug(x) cout<<#x<<"="<<x<<endl;#define For(i,l,r) for(int i=l;i<=r;i++)const int inf=~0U>>2,maxn=200;using namespace std;typedef long long ll;typedef unsigned long long ull;int Lx[maxn],Ly[maxn],w[maxn][maxn],Link[maxn],Slack[maxn],n;bool VisX[maxn],VisY[maxn];bool Find(int x){ VisX[x]=true; rep(y,n)if(!VisY[y]) { int t=Lx[x]+Ly[y]-w[x][y]; if(!t) { VisY[y]=true; if(Link[y]==-1||Find(Link[y])) return Link[y]=x,true; } else Slack[y]=min(Slack[y],t); } return false;}void KM(){ memset(Link,-1,sizeof Link); rep(i,n)Lx[i]=-inf; memset(Ly,0,sizeof Ly); rep(i,n)rep(j,n)Lx[i]=max(Lx[i],w[i][j]); rep(x,n) { rep(y,n)Slack[y]=inf; for(;;) { memset(VisX,0,sizeof VisX); memset(VisY,0,sizeof VisY); if(Find(x))break; int d=inf; rep(y,n)if(!VisY[y])d=min(d,Slack[y]); rep(x,n)if(VisX[x])Lx[x]-=d; rep(y,n)if(VisY[y])Ly[y]+=d;else Slack[y]-=d; } }}void InIt(){ cin>>n;int m,a,b,k; rep(x,n)rep(y,n)w[x][y]=-inf; rep(x,n) { scanf("%d%d%d%d",&m,&a,&b,&k);–a;–b;–m; for(int y=a;y<=b;y++) w[x][y]=-abs(y-m)*k; }}int main(){ \/\/freopen("in","r",stdin); InIt();KM();int ans=0; rep(i,n) { int tmp; if((tmp=w[Link[i]][i])==-inf){cout<<"NIE"<<endl;return 0;} ans-=tmp; } cout<<ans<<endl;}951 1 2 31 1 5 13 2 5 54 1 5 103 3 3 1 <\/p>\n","protected":false},"excerpt":{"rendered":"

[POI2006]Szk-Schools Time Limit:5000MS Memory Limit:65536KTotal Submit:34 Accepted:21 Case Time Limit:1000MS Description Input Output \u5982\u679c\u6709\u53ef\u884c\u89e3, \u8f93\u51fa\u6700\u5c0f\u4ee3\u4ef7,\u5426\u5219\u8f93\u51faNIE. Sample Input Sample Output Source \u8d39\u7528\u6d41TLE\u3002\u3002\u53ea\u597d\u5b66\u4e86\u4e2aKM\u7b97\u6cd5\u6765\u5bf9\u4ed8\u8fd9\u9898\u56e7\u3002\u3002 #include <vector>#include <algorithm>#include <utility>#include <iostream>#include <cstdio>#include <cmath>#include <cstdlib>#include <cstring>#define rep(i,n) for(int i=0;i<n;i++)#define pb push_back#define Debug(x) cout<<#x<<"="<<x<<endl;#define For(i,l,r) for(int i=l;i<=r;i++)const int inf=~0U>>2,maxn=200;using namespace std;typedef long long ll;typedef unsigned long long ull;int Lx[maxn],Ly[maxn],w[maxn][maxn],Link[maxn],Slack[maxn],n;bool VisX[maxn],VisY[maxn];bool Find(int x){ […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[10],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts\/284"}],"collection":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=284"}],"version-history":[{"count":0,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts\/284\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=284"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=284"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=284"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}