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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#157489 | #7108. Couleur | ucup-team198# | AC ✓ | 1343ms | 33992kb | C++20 | 3.5kb | 2023-09-02 15:25:19 | 2023-09-02 15:25:20 |
Judging History
answer
#include<iostream>
#include<algorithm>
#include<cstring>
#include<vector>
#include<set>
using namespace std;
#define ONLINE_JUDGE
#ifndef ONLINE_JUDGE
#define debug(...)
#include<debug>
#else
#define debug(...)
#endif
constexpr int N = 1e5 + 10, M = N<<5;
int t[N], tot;
int lch[M], rch[M], cnt[M];
void cpy(int from,int to) {
lch[from]=lch[to];
rch[from]=rch[to];
cnt[from]=cnt[to];
}
void change(int &u,int old,int l,int r,int pos){
u=++tot;
cpy(u,old);
if(l==r) {
cnt[u]++;
return;
}
int mid=(l+r)>>1;
if(pos<=mid)
change(lch[u],lch[u],l,mid,pos);
else {
change(rch[u], rch[u],mid+1,r,pos);
}
cnt[u]=cnt[lch[u]]+cnt[rch[u]];
}
int query(int s,int t,int l,int r,int ql,int qr) {
// cerr<<l<<" "<<r<<endl;
if(l==ql && r==qr) {
return cnt[t]-cnt[s];
}
int mid=(l+r)>>1;
if(qr<=mid)
return query(lch[s],lch[t],l,mid,ql,qr);
if(ql>mid)
return query(rch[s],rch[t],mid+1,r,ql,qr);
return query(lch[s],lch[t],l,mid,ql,mid)
+query(rch[s], rch[t], mid+1, r, mid+1, qr);
}
int n,a[N];
int64_t p[N];
int64_t num[N];
int query(int s,int t0,int l,int r) {
if(s>t0 || l>r) return 0;
return query(t[s-1],t[t0],1,n,l,r);
}
void solve() {
cin>>n;
tot=0;
int64_t inv=0;
for(int i=1; i<=n; ++i) {
cin>>a[i];
change(t[i],t[i-1],1,n,a[i]);
inv+=query(1,i-1,a[i]+1,n);
// cerr<<inv<<"\n";
}
for(int i=1; i<=n; ++i) {
cin>>p[i];
}
set<pair<int,int>> inter;
set<pair<int64_t,int>> all;
inter.emplace(1,n);
all.emplace(inv,1), num[1]=inv;
int64_t z=inv;
for(int i=1; i<=n; ++i) {
// cerr<<z<<endl;
if(i>1) cout<<" ";
cout<<z;
p[i]^=z;
debug(p[i]);
auto it=--inter.upper_bound({p[i],1e9});
auto [l,r]=*it;
auto invNum=num[l];
auto it1=all.lower_bound({invNum,l});
debug(l,r,p[i]);
all.erase(it1);
inter.erase(it);
if(p[i]-l<=r-p[i]) {
int64_t num0=0,numlr=0;
for(int j=l; j<p[i]; ++j) {
num0+=query(j+1,p[i]-1,1,a[j]-1);
numlr+=query(j+1,r,1,a[j]-1);
debug(numlr);
}
numlr+=query(p[i]+1,r,1,a[p[i]]-1);
debug(num0,numlr);
if(l<p[i]) {
all.emplace(num0,l), num[l]=num0;
inter.emplace(l,p[i]-1);
}
if(p[i]<r) {
all.emplace(invNum-numlr,p[i]+1), num[p[i]+1]=invNum-numlr;
inter.emplace(p[i]+1,r);
}
}else {
int64_t num0=0,numlr=0;
for(int j=p[i]+1; j<=r; ++j) {
num0+=query(p[i]+1,j-1,a[j]+1,n);
numlr+=query(l,j-1,a[j]+1,n);
}
numlr+=query(l,p[i]-1,a[p[i]]+1,n);
if(l<p[i]) {
all.emplace(invNum-numlr,l), num[l]=invNum-numlr;
inter.emplace(l,p[i]-1);
}
if(p[i]<r) {
all.emplace(num0,p[i]+1), num[p[i]+1]=num0;
inter.emplace(p[i]+1,r);
}
}
if(i==n) break;
z=all.rbegin()->first;
}
cout<<"\n";
}
int main() {
ios::sync_with_stdio(0), cin.tie(0);
int T;
cin>>T;
while(T--) {
solve();
}
}
这程序好像有点Bug,我给组数据试试?
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 5744kb
input:
3 5 4 3 1 1 1 5 4 5 3 1 10 9 7 1 4 7 8 5 7 4 8 21 8 15 5 9 2 4 5 10 6 15 4 8 8 1 12 1 10 14 7 14 2 9 13 10 3 37 19 23 15 7 2 10 15 2 13 4 5 8 7 10
output:
7 0 0 0 0 20 11 7 2 0 0 0 0 0 0 42 31 21 14 14 4 1 1 1 0 0 0 0 0 0
result:
ok 3 lines
Test #2:
score: 0
Accepted
time: 1343ms
memory: 33992kb
input:
11116 10 10 5 10 3 6 4 8 5 9 8 31 27 24 11 12 3 0 2 3 1 10 8 2 7 2 8 10 1 10 9 10 6 5 2 13 2 1 0 1 3 1 10 7 10 7 6 1 3 10 6 7 9 21 18 10 1 6 5 4 8 9 10 10 2 10 4 8 8 5 7 2 6 7 20 10 9 1 15 0 4 2 9 7 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 10 1 2 3 4 5 6 7 8 9 10 6 3 5 2 7 10 9 1 4 8 10 1 10 1 3...
output:
21 18 16 12 10 6 4 1 1 0 12 12 10 10 4 4 4 2 1 0 20 16 9 5 3 3 3 0 0 0 22 14 8 8 5 5 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19 12 7 4 4 2 2 1 0 0 20 18 8 3 1 1 0 0 0 0 45 21 21 10 3 3 3 0 0 0 17 11 8 2 1 1 1 0 0 0 13 4 1 0 0 0 0 0 0 0 29 27 22 15 9 7 4 3 1 0 26 16 9 2 1 1 1 1 1 0 0 0 0 0 0 ...
result:
ok 11116 lines
Extra Test:
score: 0
Extra Test Passed