{"id":192,"date":"2010-03-27T02:28:00","date_gmt":"2010-03-26T18:28:00","guid":{"rendered":"http:\/\/localhost\/?p=192"},"modified":"2010-03-27T02:28:00","modified_gmt":"2010-03-26T18:28:00","slug":"vijos_1350_c_series","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/wjmzbmr\/?p=192","title":{"rendered":"Vijos 1350 C\u6570\u5217"},"content":{"rendered":"

www.vijos.cn\/Problem_Show.asp<\/a>
\u8bdd\u8bf4Vijos\u7684\u5f88\u591a\u9898\u76ee\u90fd\u6709\u70b9\u95ee\u9898\uff0c\u8fd9\u4e2a\u660e\u663e\u6709\u591a\u89e3\u7684\u4f46\u8fde\u89e3\u7684\u8981\u6c42\u7684\u6ca1\u6709\u8bf4\u56e7\u3002\u3002
\u8fd9\u662f\u7ecf\u5178\u526a\u679d\u95ee\u9898\u4e86\u3002\u3002\u6211\u6b3a\u8d1f\u9898\u7684\u6570\u636e\u6bd4\u8f83\u5c0f\uff0c\u968f\u4fbf\u5199\u4e86\u51e0\u4e2a\u526a\u679d\u5c31\u8fc7\u4e86(*^__^*)
\u9996\u5148\u662f\u6240\u6709\u6570\u4e00\u5b9a\u8981\u9012\u589e\uff0c\u5982\u679c\u4e0d\u9012\u589e\u7684\u8bdd\u66f4\u6539\u64cd\u4f5c\u987a\u5e8f\u662f\u53ef\u4ee5\u6539\u6210\u9012\u589e\u7684\uff0c\u90a3\u5c31\u6ca1\u5fc5\u8981\u91cd\u590d\u641c\u7d22\u4e86\u3002\u66ff\u4ee3\u6027\u526a\u679d
\u5176\u6b21\u5982\u679c\u5f53\u524d\u6700\u5927\u6570\u8d85\u8fc7\u9700\u8981\u7684\u6570\u4e86\uff0c\u6700\u4f18\u6027\u526a\u679d\u3002
\u4f7f\u7528DFSID\uff0c\u5982\u679c\u8fd8\u80fd\u8fed\u4ee3d\u6b21\uff0c\u5f53\u524d\u6700\u5927\u6570*2^d\u6b21\u65b9\u5c0f\u4e8en\uff0c\u53ef\u884c\u6027\u526a\u679d\u3002
\u540c\u65f6\u641c\u7d22\u7684\u65f6\u5019\u4ece\u540e\u5f80\u524d\u641c\u6570\uff0c\u66f4\u5feb\u903c\u8fd1\u7b54\u6848\u3002\u3002
Code:
#include<cstdio>
#include<iostream>
#include<algorithm>
#include<string>
#include<vector>
#include<cstring>
#define rep(i,n) for(int i=0;i<n;i++)
#define pb push_back
using namespace std;
const int inf=~0U>>1,maxn=100;
int n;
int A[maxn];
bool dfs(int p,int d)
{
if(!d)return false;
if(A[p-1]>n||(A[p-1]<<d)<n)return false;
if(A[p-1]==n)return true;
for(int i=p-1;i>=0;–i)
for(int j=i;j>=0;–j)
{
int x=A[i]+A[j];
if(x<=A[p-1])break;
A[p]=x;
if(dfs(p+1,d-1))return true;
}
return false;
}
int main()
{
\/\/freopen("in","r",stdin);
cin>>n;A[0]=1;
for(int i=1;;i++)
if(dfs(1,i))
{
cout<<i<<endl;
rep(j,i)cout<<A[j]<<" ";
cout<<endl;
break;
}
}<\/p>\n","protected":false},"excerpt":{"rendered":"

www.vijos.cn\/Problem_Show.asp\u8bdd\u8bf4Vijos\u7684\u5f88\u591a\u9898\u76ee\u90fd\u6709\u70b9\u95ee\u9898\uff0c\u8fd9\u4e2a\u660e\u663e\u6709\u591a\u89e3\u7684\u4f46\u8fde\u89e3\u7684\u8981\u6c42\u7684\u6ca1\u6709\u8bf4\u56e7\u3002\u3002\u8fd9\u662f\u7ecf\u5178\u526a\u679d\u95ee\u9898\u4e86\u3002\u3002\u6211\u6b3a\u8d1f\u9898\u7684\u6570\u636e\u6bd4\u8f83\u5c0f\uff0c\u968f\u4fbf\u5199\u4e86\u51e0\u4e2a\u526a\u679d\u5c31\u8fc7\u4e86(*^__^*) \u9996\u5148\u662f\u6240\u6709\u6570\u4e00\u5b9a\u8981\u9012\u589e\uff0c\u5982\u679c\u4e0d\u9012\u589e\u7684\u8bdd\u66f4\u6539\u64cd\u4f5c\u987a\u5e8f\u662f\u53ef\u4ee5\u6539\u6210\u9012\u589e\u7684\uff0c\u90a3\u5c31\u6ca1\u5fc5\u8981\u91cd\u590d\u641c\u7d22\u4e86\u3002\u66ff\u4ee3\u6027\u526a\u679d\u5176\u6b21\u5982\u679c\u5f53\u524d\u6700\u5927\u6570\u8d85\u8fc7\u9700\u8981\u7684\u6570\u4e86\uff0c\u6700\u4f18\u6027\u526a\u679d\u3002\u4f7f\u7528DFSID\uff0c\u5982\u679c\u8fd8\u80fd\u8fed\u4ee3d\u6b21\uff0c\u5f53\u524d\u6700\u5927\u6570*2^d\u6b21\u65b9\u5c0f\u4e8en\uff0c\u53ef\u884c\u6027\u526a\u679d\u3002\u540c\u65f6\u641c\u7d22\u7684\u65f6\u5019\u4ece\u540e\u5f80\u524d\u641c\u6570\uff0c\u66f4\u5feb\u903c\u8fd1\u7b54\u6848\u3002\u3002Code:#include<cstdio>#include<iostream>#include<algorithm>#include<string>#include<vector>#include<cstring>#define rep(i,n) for(int i=0;i<n;i++)#define pb push_backusing namespace std;const int inf=~0U>>1,maxn=100;int n;int A[maxn];bool dfs(int p,int d){ if(!d)return false; if(A[p-1]>n||(A[p-1]<<d)<n)return false; if(A[p-1]==n)return true; for(int i=p-1;i>=0;–i) for(int j=i;j>=0;–j) { int x=A[i]+A[j]; if(x<=A[p-1])break; A[p]=x; if(dfs(p+1,d-1))return true; } return false;}int main(){ \/\/freopen("in","r",stdin); cin>>n;A[0]=1; for(int i=1;;i++) if(dfs(1,i)) { cout<<i<<endl; rep(j,i)cout<<A[j]<<" "; cout<<endl; break; }}<\/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\/192"}],"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=192"}],"version-history":[{"count":0,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts\/192\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=192"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=192"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}