{"id":162,"date":"2010-03-19T21:01:00","date_gmt":"2010-03-19T13:01:00","guid":{"rendered":"http:\/\/localhost\/?p=162"},"modified":"2010-03-19T21:01:00","modified_gmt":"2010-03-19T13:01:00","slug":"jsoi2008_star_wars_starwar","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/wjmzbmr\/?p=162","title":{"rendered":"[JSOI2008]\u661f\u7403\u5927\u6218starwar"},"content":{"rendered":"

61.187.179.132:8080\/JudgeOnline\/showproblem<\/a><\/p>\n

[JSOI2008]\u661f\u7403\u5927\u6218starwar <\/p>\n

Time Limit:3000MS  Memory Limit:165536K
Total Submit:90 Accepted:43
Case Time Limit:1000MS<\/p>\n

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

\u5f88\u4e45\u4ee5\u524d\uff0c\u5728\u4e00\u4e2a\u9065\u8fdc\u7684\u661f\u7cfb\uff0c\u4e00\u4e2a\u9ed1\u6697\u7684\u5e1d\u56fd\u9760\u7740\u5b83\u7684\u8d85\u7ea7\u6b66\u5668\u7edf\u6cbb\u8005\u6574\u4e2a\u661f\u7cfb\u3002\u67d0\u4e00\u5929\uff0c\u51ed\u7740\u4e00\u4e2a\u5076\u7136\u7684\u673a\u9047\uff0c\u4e00\u652f\u53cd\u6297\u519b\u6467\u6bc1\u4e86\u5e1d\u56fd\u7684\u8d85\u7ea7\u6b66\u5668\uff0c\u5e76\u653b\u4e0b\u4e86\u661f \u7cfb\u4e2d\u51e0\u4e4e\u6240\u6709\u7684\u661f\u7403\u3002\u8fd9\u4e9b\u661f\u7403\u901a\u8fc7\u7279\u6b8a\u7684\u4ee5\u592a\u96a7\u9053\u4e92\u76f8\u76f4\u63a5\u6216\u95f4\u63a5\u5730\u8fde\u63a5\u3002
\u4f46\u597d\u666f\u4e0d\u957f\uff0c\u5f88\u5feb\u5e1d\u56fd\u53c8\u91cd\u65b0\u9020\u51fa\u4e86\u4ed6\u7684\u8d85\u7ea7\u6b66\u5668\u3002\u51ed\u501f\u8fd9\u8d85\u7ea7\u6b66\u5668\u7684\u529b\u91cf\uff0c\u5e1d\u56fd\u5f00\u59cb\u6709\u8ba1\u5212\u5730\u6467\u6bc1\u53cd\u6297\u519b\u5360\u9886\u7684\u661f\u7403\u3002\u7531\u4e8e\u661f\u7403\u7684\u4e0d\u65ad\u88ab\u6467\u6bc1\uff0c\u4e24\u4e2a\u661f\u7403\u4e4b\u95f4\u7684\u901a \u8baf\u901a\u9053\u4e5f\u5f00\u59cb\u4e0d\u53ef\u9760\u8d77\u6765\u3002\u73b0\u5728\uff0c\u53cd\u6297\u519b\u9996\u9886\u4ea4\u7ed9\u4f60\u4e00\u4e2a\u4efb\u52a1\uff1a\u7ed9\u51fa\u539f\u6765\u4e24\u4e2a\u661f\u7403\u4e4b\u95f4\u7684\u4ee5\u592a\u96a7\u9053\u8fde\u901a\u60c5\u51b5\u4ee5\u53ca\u5e1d\u56fd\u6253\u51fb\u7684\u661f\u7403\u987a\u5e8f\uff0c\u4ee5\u5c3d\u91cf\u5feb\u7684\u901f\u5ea6\u6c42\u51fa\u6bcf\u4e00\u6b21\u6253 \u51fb\u4e4b\u540e\u53cd\u6297\u519b\u5360\u636e\u7684\u661f\u7403\u7684\u8fde\u901a\u5feb\u7684\u4e2a\u6570\u3002\uff08\u5982\u679c\u4e24\u4e2a\u661f\u7403\u53ef\u4ee5\u901a\u8fc7\u73b0\u5b58\u7684\u4ee5\u592a\u901a\u9053\u76f4\u63a5\u6216\u95f4\u63a5\u5730\u8fde\u901a\uff0c\u5219\u8fd9\u4e24\u4e2a\u661f\u7403\u5728\u540c\u4e00\u4e2a\u8fde\u901a\u5757\u4e2d\uff09\u3002 <\/p>\n

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

\u8f93\u5165\u6587\u4ef6\u7b2c\u4e00\u884c\u5305\u542b\u4e24\u4e2a\u6574\u6570\uff0cN (1 <= N <= 2M) \u548cM (1 <= M <= 200,000)\uff0c\u5206\u522b\u8868\u793a\u661f\u7403\u7684\u6570\u76ee\u548c\u4ee5\u592a\u96a7\u9053\u7684\u6570\u76ee\u3002\u661f\u7403\u75280~N-1\u7684\u6574\u6570\u7f16\u53f7\u3002
\u63a5\u4e0b\u6765\u7684M\u884c\uff0c\u6bcf\u884c\u5305\u62ec\u4e24\u4e2a\u6574\u6570X, Y\uff0c\u5176\u4e2d\uff080<=X<>Y<\/p>\n

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

\u8f93\u51fa\u6587\u4ef6\u7684\u7b2c\u4e00\u884c\u662f\u5f00\u59cb\u65f6\u661f\u7403\u7684\u8fde\u901a\u5757\u4e2a\u6570\u3002
\u63a5\u4e0b\u6765\u7684N\u884c\uff0c\u6bcf\u884c\u4e00\u4e2a\u6574\u6570\uff0c\u8868\u793a\u7ecf\u8fc7\u8be5\u6b21\u6253\u51fb\u540e\u73b0\u5b58\u661f\u7403\u7684\u8fde\u901a\u5757\u4e2a\u6570\u3002 <\/p>\n

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

8 13
0 1
1 6
6 5
5 0
0 6
1 2
2 3
3 4
4 5
7 1
7 2
7 6
3 6
5
1
6
3
5
7<\/p>\n

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

1
1
1
2
3
3<\/p>\n

Source <\/strong><\/p>\n

\u989d\u3002\u7b97\u6cd5\u9b3c\u90fd\u77e5\u9053(*^__^*) \u5c31\u662f\u5012\u8fc7\u6765\u7136\u540e\u52a0\u70b9\u7136\u540e\u7528\u5e76\u67e5\u96c6\u3002\u8fd9\u6ca1\u8bdd\u8bf4\u3002\u3002
\u5173\u952e\u662f\u5982\u679c\u6309\u6211\u4e00\u822c\u7684\u65b9\u5f0f\u7528vector\u8868\u793a\u8fb9\u7684\u8bdd\u4f1aTLE\u56e7\u3002\u3002
\u53ea\u597d\u7528\u524d\u5411\u661f\u4e86\u3002\u60ca\u8bb6\u7684\u53d1\u73b0\u524d\u5411\u661f\u53ef\u4ee5\u5199\u7684\u600e\u4e48\u77ed\uff01\u4ee5\u540e\u9047\u5230\u8fd9\u79cd\u60c5\u51b5\u90fd\u7528\u524d\u5411\u661f\u4e86(*^__^*)
Code\uff1a
#include<iostream>
#include<cstdio>
#include<algorithm>
#include<cmath>
#include<cstdlib>
#include<cstring>
#include<string>
#include<vector>
#include<set>
#include<queue>
#include<map>
#include<utility>
#define rep(i,n) for(int i=0;i<n;i++)
#define For(i,a,b) for(int i=a;i<=b;i++)
#define tr(i,x) for(vi::iterator i=x.begin();i!=x.end();i++)
#define all(x) x.begin(),x.end()
#define pb push_back
#define divide cout<<"—————"<<endl;
using namespace std;
const int inf=~0U>>1,maxm=400000,maxn=maxm;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int,int> ii;
ii E[maxm];
int A[maxn],Ans[maxn],S[maxn+1]={0},T[maxm];
bool inSet[maxn]={0},used[maxn]={0};
int F[maxn],n,m,cnt;
void makeset(int x)
{
F[x]=x;cnt++;inSet[x]=true;
}
int find(int x)
{
if(F[x]==x)return x;
return F[x]=find(F[x]);
}
void Union(int i,int j)
{
if(!inSet[i]||!inSet[j])return;
i=find(i);j=find(j);
if(i!=j) F[i]=j,cnt–;
}
int main()
{
\/\/freopen("in","r",stdin);
scanf("%d %d",&n,&m);int s,t;cnt=0;
rep(i,m)
{
scanf("%d %d",&s,&t);
E[i*2]=ii(s,t);
E[i*2+1]=ii(t,s);
S[s]++;S[t]++;
}
for(int i=1;i<=n;i++) S[i]+=S[i-1];
for(int i=2*m-1;i>=0;–i)
T[–S[E[i].first]]=E[i].second;
int k;scanf("%d",&k);
rep(i,k)scanf("%d",A+i),used[A[i]]=true;
rep(i,n)if(!used[i])makeset(i);
rep(i,n)if(!used[i])for(int e=S[i];e<S[i+1];e++)Union(i,T[e]);
Ans[k]=cnt;
for(int i=k-1;i>=0;–i)
{
int t=A[i];makeset(t);
for(int e=S[t];e<S[t+1];e++)Union(t,T[e]);
Ans[i]=cnt;
}
rep(i,k+1)printf("%dn",Ans[i]);
} <\/p>\n","protected":false},"excerpt":{"rendered":"

61.187.179.132:8080\/JudgeOnline\/showproblem [JSOI2008]\u661f\u7403\u5927\u6218starwar Time Limit:3000MS  Memory Limit:165536KTotal Submit:90 Accepted:43 Case Time Limit:1000MS Description \u5f88\u4e45\u4ee5\u524d\uff0c\u5728\u4e00\u4e2a\u9065\u8fdc\u7684\u661f\u7cfb\uff0c\u4e00\u4e2a\u9ed1\u6697\u7684\u5e1d\u56fd\u9760\u7740\u5b83\u7684\u8d85\u7ea7\u6b66\u5668\u7edf\u6cbb\u8005\u6574\u4e2a\u661f\u7cfb\u3002\u67d0\u4e00\u5929\uff0c\u51ed\u7740\u4e00\u4e2a\u5076\u7136\u7684\u673a\u9047\uff0c\u4e00\u652f\u53cd\u6297\u519b\u6467\u6bc1\u4e86\u5e1d\u56fd\u7684\u8d85\u7ea7\u6b66\u5668\uff0c\u5e76\u653b\u4e0b\u4e86\u661f \u7cfb\u4e2d\u51e0\u4e4e\u6240\u6709\u7684\u661f\u7403\u3002\u8fd9\u4e9b\u661f\u7403\u901a\u8fc7\u7279\u6b8a\u7684\u4ee5\u592a\u96a7\u9053\u4e92\u76f8\u76f4\u63a5\u6216\u95f4\u63a5\u5730\u8fde\u63a5\u3002 \u4f46\u597d\u666f\u4e0d\u957f\uff0c\u5f88\u5feb\u5e1d\u56fd\u53c8\u91cd\u65b0\u9020\u51fa\u4e86\u4ed6\u7684\u8d85\u7ea7\u6b66\u5668\u3002\u51ed\u501f\u8fd9\u8d85\u7ea7\u6b66\u5668\u7684\u529b\u91cf\uff0c\u5e1d\u56fd\u5f00\u59cb\u6709\u8ba1\u5212\u5730\u6467\u6bc1\u53cd\u6297\u519b\u5360\u9886\u7684\u661f\u7403\u3002\u7531\u4e8e\u661f\u7403\u7684\u4e0d\u65ad\u88ab\u6467\u6bc1\uff0c\u4e24\u4e2a\u661f\u7403\u4e4b\u95f4\u7684\u901a \u8baf\u901a\u9053\u4e5f\u5f00\u59cb\u4e0d\u53ef\u9760\u8d77\u6765\u3002\u73b0\u5728\uff0c\u53cd\u6297\u519b\u9996\u9886\u4ea4\u7ed9\u4f60\u4e00\u4e2a\u4efb\u52a1\uff1a\u7ed9\u51fa\u539f\u6765\u4e24\u4e2a\u661f\u7403\u4e4b\u95f4\u7684\u4ee5\u592a\u96a7\u9053\u8fde\u901a\u60c5\u51b5\u4ee5\u53ca\u5e1d\u56fd\u6253\u51fb\u7684\u661f\u7403\u987a\u5e8f\uff0c\u4ee5\u5c3d\u91cf\u5feb\u7684\u901f\u5ea6\u6c42\u51fa\u6bcf\u4e00\u6b21\u6253 \u51fb\u4e4b\u540e\u53cd\u6297\u519b\u5360\u636e\u7684\u661f\u7403\u7684\u8fde\u901a\u5feb\u7684\u4e2a\u6570\u3002\uff08\u5982\u679c\u4e24\u4e2a\u661f\u7403\u53ef\u4ee5\u901a\u8fc7\u73b0\u5b58\u7684\u4ee5\u592a\u901a\u9053\u76f4\u63a5\u6216\u95f4\u63a5\u5730\u8fde\u901a\uff0c\u5219\u8fd9\u4e24\u4e2a\u661f\u7403\u5728\u540c\u4e00\u4e2a\u8fde\u901a\u5757\u4e2d\uff09\u3002 Input \u8f93\u5165\u6587\u4ef6\u7b2c\u4e00\u884c\u5305\u542b\u4e24\u4e2a\u6574\u6570\uff0cN (1 <= N <= 2M) \u548cM (1 <= M <= 200,000)\uff0c\u5206\u522b\u8868\u793a\u661f\u7403\u7684\u6570\u76ee\u548c\u4ee5\u592a\u96a7\u9053\u7684\u6570\u76ee\u3002\u661f\u7403\u75280~N-1\u7684\u6574\u6570\u7f16\u53f7\u3002 \u63a5\u4e0b\u6765\u7684M\u884c\uff0c\u6bcf\u884c\u5305\u62ec\u4e24\u4e2a\u6574\u6570X, Y\uff0c\u5176\u4e2d\uff080<=X<>Y Output \u8f93\u51fa\u6587\u4ef6\u7684\u7b2c\u4e00\u884c\u662f\u5f00\u59cb\u65f6\u661f\u7403\u7684\u8fde\u901a\u5757\u4e2a\u6570\u3002 \u63a5\u4e0b\u6765\u7684N\u884c\uff0c\u6bcf\u884c\u4e00\u4e2a\u6574\u6570\uff0c\u8868\u793a\u7ecf\u8fc7\u8be5\u6b21\u6253\u51fb\u540e\u73b0\u5b58\u661f\u7403\u7684\u8fde\u901a\u5757\u4e2a\u6570\u3002 Sample Input 8 130 11 66 55 00 61 22 33 44 57 17 27 63 6516357 Sample Output 111233 […]<\/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\/162"}],"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=162"}],"version-history":[{"count":0,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts\/162\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=162"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=162"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=162"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}