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    發(fā)布日期: 2023-06-01
  • 語言: 其他
  • 標(biāo)簽: noip??提高組??模擬題??

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代碼片段和文件信息 

#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#define?inf?1000000000
#define?ll?long?long
#define?pa?pair
#define?P?16777215
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?nres;
int?a[200005];
ll?l[200005]r[200005]t[200005];
void?add（int?xint?val）
{
	for（int?i=x;i<=n;i+=i&-i）t[i]+=val;
}
ll?query（int?x）
{
	ll?res=0;
	for（int?i=x;i;i-=i&-i）res+=t[i];
	return?res;
}
void?pre（）
{
	for（int?i=1;i<=n;i++）
	{
		l[i]=query（a[i]）;
		r[i]=a[i]-l[i]-1;
		add（a[i]1）;
	}
}
int?cal1（）//12xx
{
	ll?res=0;
	for（int?i=1;i<=n;i++）
		res=（res+l[i]*（n-i-r[i]）*（n-i-r[i]-1）/2）&P;
	return?res;
}
int?cal2（）//1234
{
	memset（t0sizeof（t））;
	ll?res=0;
	for（int?i=1;i<=n;i++）
	{
		res=（res+query（a[i]）*（n-i-r[i]））&P;
		add（a[i]l[i]）;
	}
	return?res;
}
int?main（）
{
	freopen（“totem10.in““r“stdin）;
	freopen（“totem10.ans““w“stdout）;
	n=read（）;
	for（int?i=1;i<=n;i++）a[i]=read（）;
	pre（）;
	printf（“%d“（cal1（）-cal2（））&P）;
	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2sz\
?????文件????????6148??2016-06-26?01:42??noip提高組模擬題2sz\.DS_Store
?????文件???????????0??2004-01-01?00:18??noip提高組模擬題2sz\.cena
?????目錄???????????0??2018-10-24?20:18??noip提高組模擬題2sz\data\
?????文件????????8196??2016-07-03?20:30??noip提高組模擬題2sz\data\.DS_Store
?????文件???????63031??2014-12-06?22:33??noip提高組模擬題2sz\data\dataconf.xml
?????目錄???????????0??2018-10-24?20:18??noip提高組模擬題2sz\data\sam\
?????文件??????????28??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam0.in
?????文件???????????3??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam0.out
?????文件??????????71??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam1.in
?????文件???????????4??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam1.out
?????文件?????3444247??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam10.in
?????文件???????????8??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam10.out
?????文件??????????10??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam1ocen.in
?????文件???????????3??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam1ocen.out
?????文件????????1972??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam2.in
?????文件???????????5??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam2.out
?????文件??????????38??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam2ocen.in
?????文件???????????3??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam2ocen.out
?????文件????????9569??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam3.in
?????文件???????????5??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam3.out
?????文件??????????31??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam3ocen.in
?????文件???????????3??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam3ocen.out
?????文件???????97677??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam4.in
?????文件???????????5??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam4.out
?????文件??????????38??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam4ocen.in
?????文件???????????3??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam4ocen.out
?????文件??????231137??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam5.in
?????文件???????????7??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam5.out
?????文件?????3444497??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam5ocen.in
?????文件???????????8??2005-08-09?00:43??noip提高組模擬題2sz\data\sam\sam5ocen.out
............此處省略122個文件信息

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