比赛 |
EYOI暨SBOI暑假快乐赛6th |
评测结果 |
WWWWTTTTTT |
题目名称 |
千风的诗篇 |
最终得分 |
0 |
用户昵称 |
遥时_彼方 |
运行时间 |
6.755 s |
代码语言 |
C++ |
内存使用 |
8.25 MiB |
提交时间 |
2022-06-30 11:36:25 |
显示代码纯文本
#include<bits/stdc++.h>
#define rep(x,y,z) for(int x=y;x<=z;x++)
#define drep(x,y,z) for(int x=y;x>=z;x--)
#define ull unsigned long long
#define ll long long
using namespace std;
inline int read()
{
int x=0;bool flag=1;char ch=getchar();
while(ch<'0'||ch>'9') {if(ch=='-')flag=0;ch=getchar();}
while(ch>='0'&&ch<='9') {x=(x<<3)+(x<<1)+ch-'0';ch=getchar();}
if(flag) return x;
return ~(x-1);
}
inline void write(ll x)
{
if(x<0) {x=~(x-1);putchar('-');}
if(x>9) write(x/10);
putchar(x%10+'0');
}
/////////////////////////
const int N=1e5+50;
int nc,mc;
int n[N];
int _n[N];
ll a1[N],a2[N];//左侧大,左侧小
ll b1[N],b2[N];//右侧大,右侧小
ll f1[N];
ll sum;
inline int lowbit(int x){return x&(-x);}
inline ll fin(int x)
{
ll re=0;
for(;x;x-=lowbit(x)) re+=f1[x];
return re;
}
inline void get_in(int x){for(;x<=nc;x+=lowbit(x)) f1[x]++;}
//inline ll FIN(int x,int y)
//{
// ll re=0;
// for(;x;x-=lowbit(x))
// for(int o=y;o;o-=lowbit(o)) re+=
//}
int main()
{
freopen("windy.in","r",stdin);
freopen("windy.out","w",stdout);
nc=read(),mc=read();
rep(i,1,nc)
{
n[i]=read();
a2[i]=fin(n[i]);
a1[i]=i-1-a2[i];
b2[i]=n[i]-1-a2[i];
b1[i]=nc-n[i]-a1[i];
sum+=a2[i];
get_in(n[i]);
_n[n[i]]=i;
}
int s1;
rep(i,1,mc)
{
// cout<<"S:";
write(sum);
putchar(10);
s1=read();
n[_n[s1]]=0;
rep(i,1,_n[s1])
{
if(!n[i]) continue;
if(n[i]>s1) sum--;
}
// cout<<"N:"<<_n[s1]<<endl;
rep(i,_n[s1]+1,nc)
{
if(!n[i]) continue;
if(n[i]<s1) sum--;
}
// sum-=(a1[_n[s1]]+b2[_n[s1]]);
// sum+=FIN(_n[s1],nc);
// sum+=FIN(nc,s1);
// sum-=(FIN(_n[s1],s1)<<1);
// GET_IN(_n[s1],s1);
}
return 0;
}