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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#202651 | #6192. Interval Problem | ucup-team870# | RE | 0ms | 15856kb | C++14 | 3.5kb | 2023-10-06 12:48:30 | 2023-10-06 12:48:30 |
Judging History
answer
#include <bits/stdc++.h>
#define rep(i,l,r) for(int i=l; i<=r; i++)
#define per(i,r,l) for(int i=r; i>=l; i--)
#define IOS {cin.tie(0);cout.tie(0);ios::sync_with_stdio(0);}
#define mm(x) memset(x,0,sizeof x)
#define vl vector<ll>
#define ilr int i,int l,int r
#define ls i<<1,l,mid
#define rs i<<1|1,mid+1,r
#define mi int mid=l+r>>1;
using namespace std;
typedef long long ll;
typedef pair<int,int> P;
const int N=2e5+5;
P q[N];
int n,pre[N],r[N],l[N];
ll sum[N]; int num[N];
int v[N<<2],tag[N<<2];
void Max(int &x,int y){x=max(x,y);}
void pd(int i){
Max(v[i<<1],tag[i]); Max(v[i<<1|1],tag[i]);
Max(tag[i<<1],tag[i]); Max(tag[i<<1|1],tag[i]);
tag[i]=0;
}
void ud(int i,int l,int r,int x,int y,int val){
// cout<<l<<' '<<r<<' '<<x<<' '<<y<<endl;
if(x>y)return;
if(l>=x && r<=y){
// cout<<l<<' '<<r<<'\n';
Max(v[i],val); Max(tag[i],val); return;
}
if(tag[i])pd(i);
mi
if(mid>=x)ud(ls,x,y,val);
if(y>mid)ud(rs,x,y,val);
v[i]=max(v[i<<1],v[i<<1|1]);
}
int qu(int i,int l,int r,int x,int y){
// cout<<i<<' '<<l<<' '<<r<<' '<<x<<' '<<y <<'\n';
if(x>y)return 0;
if(l>=x && r<=y)return v[i];
if(tag[i])pd(i);
mi int res=0;
if(mid>=x)res=max(res,qu(ls,x,y));
if(y>mid)res=max(res,qu(rs,x,y));
return res;
}
int ask(int l,int r){
return pre[r]-pre[l-1];
}
vector<ll> wk(){
mm(pre); mm(r); mm(l); mm(sum); mm(num); mm(v); mm(tag);
int n2=n*2;
rep(i,1,n){
auto [u,v]=q[i];
l[v]=u; r[u]=v; ++pre[u];
}
rep(i,1,n2)pre[i]+=pre[i-1];
per(i,n2,1){
// cout<<i<<endl;
if(!r[i])continue;
int l1=i,r1=r[i];
ud(1,1,n2,l1,r1,r1);
int r2=qu(1,1,n2,l1,r1);
// cout<<l1<<' '<<r1<<' '<<r2<<"hh\n";
if(r2<=r1){
sum[i]=num[i]=ask(l1+1,r1-1); continue;
}
int l2=l[r2];
num[i]=num[l2]-ask(l2+1,r1-1)+ask(l1+1,r1-1);
sum[i]=sum[l2]-ask(l2+1,r1-1)+num[i]; //cout<<l2<<' '<<r1<<' '<<ask(l2+1,r1-1)<<": ";
// cout<<i<<' '<<r2<<' '<< sum[i]<<' '<<num[i]<<'\n';
}
// per(i,n2,1){
// if(r[i])cout<<i<<' '<<sum[i]<<' '<<num[i]<<'\n';
// }
vector<ll> res(n2+1);
rep(i,1,n2){
if(!r[i])continue; int l1=i,r1=r[i];
int r2=qu(1,1,n2,l1,r1);
if(r2<=r1)continue;
int l2=l[r2];
res[i]=sum[l2]+num[l2]-ask(l2+1,r1-1)*2;
// cout<<i<<' '<<l2<<' '<<r2<< '\n';
}
// rep(i,1,n2){
// if(r[i])cout<<i<<' '<<res[i]<<'\n';
// }
return res;
}
ll res[N];
int main() {
// IOS
// ud(1,1,10,5,10,10); cout<<qu(1,1,10,2,3); return 0;
cin>>n; int n2=n*2;
rep(i,1,n){
int u,v;cin>>u>>v; q[i]={u,v};
l[v]=u; r[u]=v; ++pre[u];
}
rep(i,1,n2)pre[i]+=pre[i-1];
int cnt=0;
rep(i,1,n2){
if(r[i]){
res[i]=cnt+ask(i+1,r[i]-1); ++cnt;
// cout<<i<<' '<<res[i]<<endl;
}
else --cnt;
}
auto res1=wk();
// cout<<"wk1#########\n";
rep(i,1,n2)res[i]+=res1[i];
rep(i,1,n){
auto [u,v]=q[i]; u=n2+1-u; v=n2+1-v; swap(u,v); q[i]={u,v};
}
auto res2=wk();
rep(i,1,n){
res[n2+1-q[i].second]+=res2[q[i].first];
}
rep(i,1,n){
auto [u,v]=q[i]; u=n2+1-u; v=n2+1-v; swap(u,v); q[i]={u,v};
}
rep(i,1,n){
cout<<res[q[i].first]<<'\n';
}
}
/*
5
2 3
6 7
1 9
5 10
4 8
*/
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 15856kb
input:
5 2 3 6 7 1 9 5 10 4 8
output:
7 5 4 5 5
result:
ok 5 number(s): "7 5 4 5 5"
Test #2:
score: -100
Runtime Error
input:
200000 342504 342505 248314 248317 259328 259334 234817 234821 225726 225732 371424 371425 260562 260565 34752 34753 132098 132100 262130 262134 7254 7255 228491 228492 43488 43492 188408 188410 11691 11692 350334 350335 327350 327352 360684 360685 182051 182052 72131 72135 194666 194668 61303 61313...