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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#19199 | #1877. Matryoshka Dolls | scw | Compile Error | / | / | C++ | 2.1kb | 2022-01-28 14:21:00 | 2022-05-18 04:06:04 |
Judging History
你现在查看的是最新测评结果
- [2023-08-10 23:21:45]
- System Update: QOJ starts to keep a history of the judgings of all the submissions.
- [2022-05-18 04:06:04]
- 评测
- 测评结果:Compile Error
- 用时:0ms
- 内存:0kb
- [2022-01-28 14:21:00]
- 提交
answer
#include<bits/stdc++.h>
#define int long long
#define MAXN 500007
using namespace std;
int S=707;
int n,m,a[MAXN],p[MAXN],cnt;
int rs[710][710],ans[MAXN];
int ls[MAXN];
struct data{
int l,r;
}op[MAXN];
inline int read(){
int x=0,f=1;
char ch=getchar();
while(ch<'0'||ch>'9'){
if(ch=='-')
f=-1;
ch=getchar();
}
while(ch>='0'&&ch<='9'){
x=(x<<1)+(x<<3)+(ch^48);
ch=getchar();
}
return x*f;
}
int minn[710][710],maxx[710][710];
int pr[MAXN],nx[MAXN],v[710];
int pre[710][710],suc[710][710];
inline int calc(int x,int y){
if(!x||!y||x>n||y>n)return 0;
if (p[x]>p[y])
return p[x]-p[y];
else
return p[y]-p[x];
}
/*
5 2
5 4 2 3 1
3 4
2 5
1
5
*/
int main(){
n=read(),m=read(),cnt=n/S+1;
for(int i=1;i<=n;i++)
a[i]=read();
for(int i=1;i<=n;i++)
p[a[i]]=i;
for(int i=1;i<=m;i++)
op[i].l=read(),op[i].r=read(),ls[i]=-1;
for(int kk=1;kk<=cnt;kk++){
int size=0;
for(int i=1;i<=n;i++){
if((i/S+1)==kk){
++size;
nx[i]=pr[i]=size;
v[size]=a[i];
}
else
pr[i]=nx[i]=0;
}
int w=0;
for(int i=1;i<=n;i++){
if (pr[i])
w=pr[i];
else
pr[i]=w;
}
w=size+1;
for(int i=n;i;i--){
if (nx[i])
w=nx[i];
else
nx[i]=w;
}
for(int i=1;i<=size;i++){
minn[i][i]=maxx[i][i]=v[i];
pre[i][i]=0,suc[i][i]=n+1;
for(int j=i+1;j<=size;j++){
suc[i][j]=suc[i][j-1],pre[i][j]=pre[i][j-1];
minn[i][j]=min(minn[i][j-1],v[j]),maxx[i][j]=max(maxx[i][j-1],v[j]);
if(v[j]<v[i])pre[i][j]=max(pre[i][j],v[j]);
if(v[j]>v[i])suc[i][j]=min(suc[i][j],v[j]);
}
}
for(int i=1;i<=size;i++){
rs[i][i]=0;
for(int j=i-1;j;j--){
int sl=pre[j][i],sr=suc[j][i];
rs[i][j]=rs[i][j+1]+calc(sl,v[j])+calc(v[j],sr)-calc(sl,sr);
}
}
for(int i=1;i<=m;i++){
int L=nx[op[i].l],R=pr[op[i].r];
if(L<=R){
ans[i]+=rs[R][L];
if(~ls[i])
ans[i]+=abs(p[minn[L][R]]-ls[i]);
ls[i]=p[maxx[L][R]];
}
}
}
for(int i=1;i<=m;i++)
printf("%lld\n",ans[i]);
return 0;
}
Details
cc1plus: error: ‘::main’ must return ‘int’