{"id":352,"date":"2010-08-22T16:31:00","date_gmt":"2010-08-22T08:31:00","guid":{"rendered":"http:\/\/localhost\/?p=352"},"modified":"2010-08-22T16:31:00","modified_gmt":"2010-08-22T08:31:00","slug":"zjoi2006_trouble_troubles_of_the_emperor","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/wjmzbmr\/?p=352","title":{"rendered":"[Zjoi2006]trouble \u7687\u5e1d\u7684\u70e6\u607c"},"content":{"rendered":"\n

[Zjoi2006]trouble \u7687\u5e1d\u7684\u70e6\u607c<\/p>\n

Time Limit:1000MS  Memory Limit:65536K
Total Submit:54 Accepted:20<\/p>\n

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

\u7ecf\u8fc7\u591a\u5e74\u7684\u6740\u622e\uff0c\u79e6\u7687\u7ec8\u4e8e\u7edf\u4e00\u4e86\u4e2d\u56fd\u3002\u4e3a\u4e86\u62b5\u5fa1\u5916\u6765\u7684\u4fb5\u7565\uff0c\u4ed6\u51c6\u5907\u5728\u56fd\u571f\u8fb9\u5883\u5b89\u7f6en\u540d\u5c06\u519b\u3002
\u4e0d\u5e78\u7684\u662f\u8fd9n\u540d\u5c06\u519b\u7fbd\u7ffc\u6e10\u4e30\uff0c\u5f00\u59cb\u5c55\u9732\u4ed6\u4eec\u7684\u72fc\u5b50\u91ce\u5fc3\u4e86\u3002\u4ed6\u4eec\u62d2\u7edd\u8ff0\u804c\u3001\u62d2\u7edd\u63a5\u53d7\u7687\u5e1d\u7684\u5723\u65e8\u3002\u79e6\u7687\u5df2\u7ecf\u51c6\u5907\u597d\u4e86\u79d8\u5bc6\u5904\u51b3\u8fd9\u4e9b\u65e0\u793c\u7684\u8fb9\u9632\u5927\u5c06\u3002\u4e0d\u8fc7 \u4e3a\u9632\u5175\u53d8\uff0c\u4ed6\u51b3\u5b9a\u5148\u6388\u4e88\u8fd9\u4e9b\u5c06\u519b\u4e00\u4e9b\u52cb\u7ae0\uff0c\u4e3a\u81ea\u5df1\u8d62\u5f97\u6218\u7565\u65f6\u95f4\u3002
\u5c06\u519b\u4eec\u542c\u8bf4\u4ed6\u4eec\u5373\u5c06\u88ab\u6388\u4e88\u52cb\u7ae0\u90fd\u5f88\u5f00\u5fc3\uff0c\u4ed6\u4eec\u7eb7\u7eb7\u4e0a\u4e66\u8868\u793a\u611f\u8c22\u3002\u7b2ci\u4e2a\u5c06\u519b\u8981\u6c42\u5f97\u5230ai\u679a\u4e0d\u540c\u989c\u8272\u7684\u52cb\u7ae0\u3002\u4f46\u662f\u8fd9\u4e9b\u5c06\u519b\u90fd\u5f88\u50b2\u6c14\uff0c\u5982\u679c\u4e24\u4e2a\u76f8\u90bb\u7684 \u5c06\u519b\u62e5\u6709\u989c\u8272\u76f8\u540c\u7684\u52cb\u7ae0\u4ed6\u4eec\u5c31\u4f1a\u8ba4\u4e3a\u7687\u5e1d\u4e0d\u5c0a\u91cd\u4ed6\u4eec\uff0c\u4f1a\u7acb\u5373\u9020\u53cd\uff08\u7f16\u53f7\u4e3ai\u7684\u5c06\u519b\u548c\u7f16\u53f7\u4e3ai+1\u7684\u5c06\u519b\u76f8\u90bb\uff1b\u56e0\u4e3a\u4ed6\u4eec\u9a7b\u624e\u7684\u8fb9\u5883\u53ef\u4ee5\u7c7b\u4f3c\u770b\u6210\u4e00\u4e2a\u5706\u5f62\uff0c\u6240 \u4ee5\u7f16\u53f71\u548c\u7f16\u53f7n\u7684\u5c06\u519b\u4e5f\u76f8\u90bb\uff09\u3002
\u7687\u5e1d\u4e0d\u5f97\u4e0d\u6ee1\u8db3\u6bcf\u4e2a\u5c06\u519b\u7684\u8981\u6c42\uff0c\u4f46\u5bf9\u4ed6\u4eec\u7684\u98de\u626c\u8dcb\u6248\u611f\u5230\u5f88\u6c14\u6124\u3002\u4e8e\u662f\u7687\u5e1d\u51b3\u5b9a\u94f8\u9020\u5c3d\u91cf\u5c11\u79cd\u7c7b\u7684\u52cb\u7ae0\u6765\u6ee1\u8db3\u8fd9\u4e9b\u72c2\u5984\u8005\u7684\u8981\u6c42\u3002\u8bf7\u95ee\u4ed6\u81f3\u5c11\u8981\u94f8\u9020\u591a\u5c11 \u79cd\u989c\u8272\u7684\u52cb\u7ae0\uff1f <\/p>\n

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

\u7b2c\u4e00\u884c\u6709\u4e00\u4e2a\u6574\u6570n(1<=n<=20000)\u3002
\u63a5\u4e0b\u6765n\u884c\u6bcf\u884c\u4e00\u4e2a\u6574\u6570ai\uff0c\u8868\u793a\u7b2ci\u4e2a\u5c06\u519b\u8981\u6c42\u5f97\u5230\u591a\u5c11\u79cd\u52cb\u7ae0\u3002(1<=ai<=100000) <\/p>\n

\u8f93\u51fa\u4e00\u4e2a\u6574\u6570\uff0c\u5373\u6700\u5c11\u9700\u8981\u591a\u5c11\u79cd\u52cb\u7ae0\u3002 <\/p>\n

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

4
2
2
1
1 <\/p>\n

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

4<\/p>\n

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

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

Day2
\u9760\u3002\u3002\u8fd9\u9053\u7834\u9898\u8ba9\u6211WAN\u6b21\u3002\u3002\u771f\u662f\u60b2\u5267\u3002\u3002\u770b\u6765\u592a\u4e0d\u7ec6\u5fc3\u4e86\u56e7\u3002\u3002\u3002
\u9996\u5148\u8fd9\u4e2a\u9898\u76ee\u5f88\u663e\u7136\u5982\u679c\u626b\u63cf\u7684\u8bdd\uff0c\u7531\u4e8e\u662f\u73af\u5f62\u7684\uff0c\u53ef\u4ee5\u628a\u5956\u7ae0\u770b\u6210\u4e24\u79cd\uff0c
\u7b2c\u4e00\u79cd\u5c5e\u4e8e\u7b2c\u4e00\u4e2a\u4eba\u7684\uff0c\u7b2c\u4e8c\u79cd\u662f\u4e0d\u5c5e\u4e8e\u7684\u3002
\u90a3\u4e48\u5982\u679cDp\u7684\u8bdd\u8981\u8bb0\u5f55\u79cd\u6570\uff0c\u663e\u7136\u8981TLE\u3002\u3002
\u6240\u4ee5\u8981\u4e8c\u5206\u7b54\u6848\u3002\u3002
\u7136\u540e\u53ef\u4ee5\u53d1\u73b0\u6bcf\u4e2a\u4eba\u80fd\u62ff\u7684\u7b2c\u4e00\u79cd\u5956\u7ae0\u6570\u662f\u4e00\u4e2a\u533a\u95f4\u3002\u3002
\u5047\u8bbe\u7b2ci\u4e2a\u4eba\u7684\u533a\u95f4\u662fl,r
\u90a3\u4e48\u5217\u51fa\u4e00\u7cfb\u5217\u6761\u4ef6\uff08\u8fd9\u70b9\u4e00\u5b9a\u8981\u8003\u8651\u5468\u5168\uff0c\u4e0d\u7136WA\uff09\u3002\u3002
\u7b97\u51fa\u7b2ci+1\u4e2a\u4eba\u7684\u533a\u95f4\uff0c\u7136\u540e\u770b\u770b\u7b2cN\u4e2a\u4eba\u7684\u533a\u95f4\u662f\u5426\u5305\u542b0\u3002\u3002
Code\uff1a<\/p>\n

#include <cstdio>
#include <iostream>
#define rep(i,n) for(int i=0;i<n;i++)
const int maxn=20000,inf=~0U>>1;
using namespace std;
int a[maxn],n,l[maxn],r[maxn];
inline void checkmin(int&x,int c){if(x>c)x=c;}
inline void checkmax(int&x,int c){if(x<c)x=c;}
bool Check(int K)
{
l[0]=r[0]=a[0];
for(int i=1;i<n;i++)
{
l[i]=-inf;r[i]=inf;
if(a[i-1]+a[i]>K)return false;
checkmin(r[i],a[0]-l[i-1]);
checkmin(r[i],a[0]);
checkmin(r[i],a[i]);
checkmax(l[i],a[0]+a[i-1]+a[i]-K-r[i-1]);
checkmax(l[i],a[i]-K+a[0]);
checkmax(l[i],0);
if(l[i]>r[i])return false;
}
return l[n-1]<=0;
}
int main()
{
\/\/freopen("in","r",stdin);
scanf("%d",&n);rep(i,n)scanf("%d",a+i);
int l=0,r=500000;
while(l+1<r)
{
int m=l+r>>1;
if(Check(m))r=m;else l=m;
}
printf("%dn",r);
}<\/p>\n","protected":false},"excerpt":{"rendered":"

[Zjoi2006]trouble \u7687\u5e1d\u7684\u70e6\u607c Time Limit:1000MS  Memory Limit:65536KTotal Submit:54 Accepted:20 Description \u7ecf\u8fc7\u591a\u5e74\u7684\u6740\u622e\uff0c\u79e6\u7687\u7ec8\u4e8e\u7edf\u4e00\u4e86\u4e2d\u56fd\u3002\u4e3a\u4e86\u62b5\u5fa1\u5916\u6765\u7684\u4fb5\u7565\uff0c\u4ed6\u51c6\u5907\u5728\u56fd\u571f\u8fb9\u5883\u5b89\u7f6en\u540d\u5c06\u519b\u3002 \u4e0d\u5e78\u7684\u662f\u8fd9n\u540d\u5c06\u519b\u7fbd\u7ffc\u6e10\u4e30\uff0c\u5f00\u59cb\u5c55\u9732\u4ed6\u4eec\u7684\u72fc\u5b50\u91ce\u5fc3\u4e86\u3002\u4ed6\u4eec\u62d2\u7edd\u8ff0\u804c\u3001\u62d2\u7edd\u63a5\u53d7\u7687\u5e1d\u7684\u5723\u65e8\u3002\u79e6\u7687\u5df2\u7ecf\u51c6\u5907\u597d\u4e86\u79d8\u5bc6\u5904\u51b3\u8fd9\u4e9b\u65e0\u793c\u7684\u8fb9\u9632\u5927\u5c06\u3002\u4e0d\u8fc7 \u4e3a\u9632\u5175\u53d8\uff0c\u4ed6\u51b3\u5b9a\u5148\u6388\u4e88\u8fd9\u4e9b\u5c06\u519b\u4e00\u4e9b\u52cb\u7ae0\uff0c\u4e3a\u81ea\u5df1\u8d62\u5f97\u6218\u7565\u65f6\u95f4\u3002 \u5c06\u519b\u4eec\u542c\u8bf4\u4ed6\u4eec\u5373\u5c06\u88ab\u6388\u4e88\u52cb\u7ae0\u90fd\u5f88\u5f00\u5fc3\uff0c\u4ed6\u4eec\u7eb7\u7eb7\u4e0a\u4e66\u8868\u793a\u611f\u8c22\u3002\u7b2ci\u4e2a\u5c06\u519b\u8981\u6c42\u5f97\u5230ai\u679a\u4e0d\u540c\u989c\u8272\u7684\u52cb\u7ae0\u3002\u4f46\u662f\u8fd9\u4e9b\u5c06\u519b\u90fd\u5f88\u50b2\u6c14\uff0c\u5982\u679c\u4e24\u4e2a\u76f8\u90bb\u7684 \u5c06\u519b\u62e5\u6709\u989c\u8272\u76f8\u540c\u7684\u52cb\u7ae0\u4ed6\u4eec\u5c31\u4f1a\u8ba4\u4e3a\u7687\u5e1d\u4e0d\u5c0a\u91cd\u4ed6\u4eec\uff0c\u4f1a\u7acb\u5373\u9020\u53cd\uff08\u7f16\u53f7\u4e3ai\u7684\u5c06\u519b\u548c\u7f16\u53f7\u4e3ai+1\u7684\u5c06\u519b\u76f8\u90bb\uff1b\u56e0\u4e3a\u4ed6\u4eec\u9a7b\u624e\u7684\u8fb9\u5883\u53ef\u4ee5\u7c7b\u4f3c\u770b\u6210\u4e00\u4e2a\u5706\u5f62\uff0c\u6240 \u4ee5\u7f16\u53f71\u548c\u7f16\u53f7n\u7684\u5c06\u519b\u4e5f\u76f8\u90bb\uff09\u3002 \u7687\u5e1d\u4e0d\u5f97\u4e0d\u6ee1\u8db3\u6bcf\u4e2a\u5c06\u519b\u7684\u8981\u6c42\uff0c\u4f46\u5bf9\u4ed6\u4eec\u7684\u98de\u626c\u8dcb\u6248\u611f\u5230\u5f88\u6c14\u6124\u3002\u4e8e\u662f\u7687\u5e1d\u51b3\u5b9a\u94f8\u9020\u5c3d\u91cf\u5c11\u79cd\u7c7b\u7684\u52cb\u7ae0\u6765\u6ee1\u8db3\u8fd9\u4e9b\u72c2\u5984\u8005\u7684\u8981\u6c42\u3002\u8bf7\u95ee\u4ed6\u81f3\u5c11\u8981\u94f8\u9020\u591a\u5c11 \u79cd\u989c\u8272\u7684\u52cb\u7ae0\uff1f Input \u7b2c\u4e00\u884c\u6709\u4e00\u4e2a\u6574\u6570n(1<=n<=20000)\u3002 \u63a5\u4e0b\u6765n\u884c\u6bcf\u884c\u4e00\u4e2a\u6574\u6570ai\uff0c\u8868\u793a\u7b2ci\u4e2a\u5c06\u519b\u8981\u6c42\u5f97\u5230\u591a\u5c11\u79cd\u52cb\u7ae0\u3002(1<=ai<=100000) \u8f93\u51fa\u4e00\u4e2a\u6574\u6570\uff0c\u5373\u6700\u5c11\u9700\u8981\u591a\u5c11\u79cd\u52cb\u7ae0\u3002 Output 4 2 2 1 1 Sample Input 4 Sample Output Source Day2\u9760\u3002\u3002\u8fd9\u9053\u7834\u9898\u8ba9\u6211WAN\u6b21\u3002\u3002\u771f\u662f\u60b2\u5267\u3002\u3002\u770b\u6765\u592a\u4e0d\u7ec6\u5fc3\u4e86\u56e7\u3002\u3002\u3002\u9996\u5148\u8fd9\u4e2a\u9898\u76ee\u5f88\u663e\u7136\u5982\u679c\u626b\u63cf\u7684\u8bdd\uff0c\u7531\u4e8e\u662f\u73af\u5f62\u7684\uff0c\u53ef\u4ee5\u628a\u5956\u7ae0\u770b\u6210\u4e24\u79cd\uff0c\u7b2c\u4e00\u79cd\u5c5e\u4e8e\u7b2c\u4e00\u4e2a\u4eba\u7684\uff0c\u7b2c\u4e8c\u79cd\u662f\u4e0d\u5c5e\u4e8e\u7684\u3002\u90a3\u4e48\u5982\u679cDp\u7684\u8bdd\u8981\u8bb0\u5f55\u79cd\u6570\uff0c\u663e\u7136\u8981TLE\u3002\u3002\u6240\u4ee5\u8981\u4e8c\u5206\u7b54\u6848\u3002\u3002\u7136\u540e\u53ef\u4ee5\u53d1\u73b0\u6bcf\u4e2a\u4eba\u80fd\u62ff\u7684\u7b2c\u4e00\u79cd\u5956\u7ae0\u6570\u662f\u4e00\u4e2a\u533a\u95f4\u3002\u3002\u5047\u8bbe\u7b2ci\u4e2a\u4eba\u7684\u533a\u95f4\u662fl,r\u90a3\u4e48\u5217\u51fa\u4e00\u7cfb\u5217\u6761\u4ef6\uff08\u8fd9\u70b9\u4e00\u5b9a\u8981\u8003\u8651\u5468\u5168\uff0c\u4e0d\u7136WA\uff09\u3002\u3002\u7b97\u51fa\u7b2ci+1\u4e2a\u4eba\u7684\u533a\u95f4\uff0c\u7136\u540e\u770b\u770b\u7b2cN\u4e2a\u4eba\u7684\u533a\u95f4\u662f\u5426\u5305\u542b0\u3002\u3002Code\uff1a #include <cstdio>#include <iostream>#define rep(i,n) for(int i=0;i<n;i++)const int maxn=20000,inf=~0U>>1;using namespace std;int a[maxn],n,l[maxn],r[maxn];inline void checkmin(int&x,int c){if(x>c)x=c;}inline void checkmax(int&x,int c){if(x<c)x=c;}bool Check(int K){ l[0]=r[0]=a[0]; for(int […]<\/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\/352"}],"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=352"}],"version-history":[{"count":0,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts\/352\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=352"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=352"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=352"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}