#include
#include
#include
#include
#include
#include
#include
#define?ll?long?long
#define?inf?9000000000000000000
#define?MAX?1000000000000000000LL
using?namespace?std;
int?read（）
{
????int?x=0f=1;char?ch=getchar（）;
????while（ch<‘0‘||ch>‘9‘）{if（ch==‘-‘）f=-1;ch=getchar（）;}
????while（ch>=‘0‘&&ch<=‘9‘）{x=x*10+ch-‘0‘;ch=getchar（）;}
????return?x*f;
}
int?n;
int?a[1000005]b[1000005];
ll?totansf[1000005]sum[1000005];
int?main（）
{
	freopen（“pasture.in““r“stdin）;
	freopen（“pasture.out““w“stdout）;
	n=read（）;
	for（int?i=1;i<=n;i++）a[i]=read（）;
	for（int?i=1;i<=n;i++）b[i]=read（）;
	for（int?i=1;i<=n;i++）sum[i]=sum[i-1]+b[i];
	for（int?i=1;i		tot+=b[i]*（n-i）;
	tot+=a[n];
	for（int?i=n-1;i;i--）
	{
		for（int?j=i+1;j<=n;j++）
			f[i]=max（f[i]f[j]+sum[i]*（j-i）-a[i]）;
		ans=max（ansf[i]）;
	}
	printf（“%I64d“tot-ans）;
	return?0;
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-10-24?20:18??noip提高組模擬題1sz\
?????文件????????6148??2015-11-17?21:13??noip提高組模擬題1sz\.DS_Store
?????文件???????????0??2014-11-25?22:07??noip提高組模擬題1sz\.cena
?????文件???????42496??2014-11-29?22:52??noip提高組模擬題1sz\11月29日集訓.rtf
?????目錄???????????0??2018-10-24?20:18??noip提高組模擬題1sz\data\
?????文件????????6148??2015-09-29?22:22??noip提高組模擬題1sz\data\.DS_Store
?????文件?????????591??2014-11-29?16:28??noip提高組模擬題1sz\data\dataconf.xml
?????目錄???????????0??2018-10-24?20:18??noip提高組模擬題1sz\data\pasture\
?????文件??????????49??2014-01-15?20:49??noip提高組模擬題1sz\data\pasture\pasture0.in
?????文件???????????4??2014-01-15?21:03??noip提高組模擬題1sz\data\pasture\pasture0.out
?????文件????????5847??2014-01-15?20:49??noip提高組模擬題1sz\data\pasture\pasture1.in
?????文件???????????7??2014-01-15?21:03??noip提高組模擬題1sz\data\pasture\pasture1.out
?????文件????????5820??2014-01-15?20:49??noip提高組模擬題1sz\data\pasture\pasture2.in
?????文件???????????7??2014-01-15?21:03??noip提高組模擬題1sz\data\pasture\pasture2.out
?????文件????????5855??2014-01-15?20:49??noip提高組模擬題1sz\data\pasture\pasture3.in
?????文件???????????7??2014-01-15?21:03??noip提高組模擬題1sz\data\pasture\pasture3.out
?????文件?????9778013??2014-01-15?20:49??noip提高組模擬題1sz\data\pasture\pasture4.in
?????文件??????????12??2014-01-15?21:03??noip提高組模擬題1sz\data\pasture\pasture4.out
?????文件?????9778448??2014-01-15?20:49??noip提高組模擬題1sz\data\pasture\pasture5.in
?????文件??????????12??2014-01-15?21:03??noip提高組模擬題1sz\data\pasture\pasture5.out
?????文件?????9778773??2014-01-15?20:49??noip提高組模擬題1sz\data\pasture\pasture6.in
?????文件??????????12??2014-01-15?21:03??noip提高組模擬題1sz\data\pasture\pasture6.out
?????文件?????9779290??2014-01-15?20:49??noip提高組模擬題1sz\data\pasture\pasture7.in
?????文件??????????12??2014-01-15?21:03??noip提高組模擬題1sz\data\pasture\pasture7.out
?????文件?????9778288??2014-01-15?20:49??noip提高組模擬題1sz\data\pasture\pasture8.in
?????文件??????????12??2014-01-15?21:03??noip提高組模擬題1sz\data\pasture\pasture8.out
?????文件?????9778804??2014-01-15?20:49??noip提高組模擬題1sz\data\pasture\pasture9.in
?????文件??????????12??2014-01-15?21:03??noip提高組模擬題1sz\data\pasture\pasture9.out
?????目錄???????????0??2018-10-24?20:18??noip提高組模擬題1sz\data\poet\
?????文件????????3254??2014-11-25?22:26??noip提高組模擬題1sz\data\poet\poet1.in
?????文件?????????258??2014-11-25?22:27??noip提高組模擬題1sz\data\poet\poet1.out
............此處省略91個文件信息