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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#164961 | #7108. Couleur | ucup-team198 | AC ✓ | 1940ms | 109804kb | C++23 | 5.5kb | 2023-09-05 15:00:46 | 2023-09-05 15:00:46 |
Judging History
answer
#include <algorithm>
#include <array>
#include <cassert>
#include <cstring>
#include <functional>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <tuple>
#include <vector>
using namespace std;
#define endl '\n'
using LL=long long;
constexpr int N=1e5+10,M=N*__lg(N)*2;
namespace sgt {
#define lch tr[u].lc
#define rch tr[u].rc
struct Node {
int minp=N,maxp=0;
int lc=0,rc=0;
int cnt=0;
int add=0;
LL rev=0;
};
vector<Node> tr(M);
int idx;
int new_node() {
assert(++idx<M);
tr[idx]={};
return idx;
}
void pushup(int u) {
tr[u].maxp=max(tr[lch].maxp,tr[rch].maxp);
tr[u].minp=min(tr[lch].minp,tr[rch].minp);
tr[u].rev=tr[lch].rev+tr[rch].rev;
tr[u].cnt=tr[lch].cnt+tr[rch].cnt;
}
void upd(int u,int add) {
if(u) {
tr[u].rev+=1LL*tr[u].cnt*add;
tr[u].add+=add;
}
}
void pushdn(int u) {
if(tr[u].add) {
upd(lch, tr[u].add);
upd(rch, tr[u].add);
}
tr[u].add=0;
}
pair<int,int> split(int u,int k) {
if(tr[u].minp>=k) return {0,u};
if(tr[u].maxp<k) return {u,0};
pushdn(u);
int v=new_node();
auto [a,b]=split(lch, k);
auto [c,d]=split(rch, k);
tr[u].lc=a,tr[u].rc=c;
tr[v].lc=b,tr[v].rc=d;
upd(b, -tr[c].cnt);
pushup(u),pushup(v);
return {u,v};
}
int query(int u,int l,int r,int x,int y) {
if(!u||l>y||r<x) return {};
if(l>=x&&r<=y) return tr[u].cnt;
pushdn(u);
int mid=(l+r)/2;
return query(lch, l, mid, x, y)+query(rch, mid+1, r, x, y);
}
void build(int &u,int l,int r,int x,int rev,int p) {
if(!u) u=new_node();
if(l==r) {
tr[u].cnt=1;
tr[u].rev=rev;
tr[u].minp=tr[u].maxp=p;
return;
}
int mid=(l+r)/2;
pushdn(u);
if(x<=mid) build(lch, l, mid, x, rev, p);
else build(rch, mid+1, r, x, rev, p);
pushup(u);
}
#undef lch
#undef rch
}
template<class Info=int,typename I=int> struct SegmentSet {
struct Seg {
I l;
mutable I r;
mutable Info v;
bool operator<(const Seg &x) const {
return l<x.l;
}
friend ostream &operator<<(ostream &os,const Seg &x) {
return os<<"["<<x.l<<"->"<<x.r<<"]";
}
Seg(I l,I r={},Info v={}): l(l),r(r),v(v) {}
};
set<Seg> st;
using Iter=typename set<Seg>::iterator;
Iter first_inter(I l,I r) {
Iter it=--st.upper_bound({l});
if(it->r<l) it++;
return it;
}
Iter last_inter(I l,I r) {
return --st.upper_bound({r});
}
Iter split(I p) {
Iter it=st.lower_bound({p});
if(it->l==p) return it;
if((--it)->r<p) return st.end();
auto [l,r,v]=*it;
st.erase(it);
st.emplace(l,p-1,v);
return st.emplace(p,r,v).first;
}
Iter merge(Iter it) {
auto work=[&](Iter lit,Iter rit) {
if(lit->r+1==rit->l&&lit->v==rit->v) {
lit->r=rit->r;
st.erase(rit);
return true;
}
return false;
};
auto lit=prev(it),rit=next(it);
if(work(lit,it)) return work(lit,rit),lit;
return work(it,rit),it;
}
Iter erase(I l,I r) {
split(l),split(r+1);
auto lit=first_inter(l,r);
auto rit=++last_inter(l,r);
return st.erase(lit,rit);
}
Iter insert(I l,I r,Info v) {
erase(l,r);
return merge(st.emplace(l,r,v).first);
}
I first_uncovered() {
auto it=st.begin();
if(it->r+2<next(it)->l) return it->r+2;
else it=next(it);
for(;;) {
if(it->r+1<next(it)->l) return it->r+1;
else it=next(it);
}
}
SegmentSet(I l,I r) {
st.emplace(l-2,l-2);
st.emplace(r+2,r+2);
}
};
void solve() {
sgt::idx=0;
int n;
cin>>n;
vector<int> arr(n+1);
vector<pair<int,int>> num;
for(int i=1;i<=n;i++) {
cin>>arr[i];
num.emplace_back(arr[i],i);
}
sort(num.begin(),num.end());
for(int i=1;i<=n;i++) {
arr[i]=lower_bound(
num.begin(),num.end(),pair{arr[i],i}
)-num.begin()+1;
}
SegmentSet<> seg(1,n);
seg.insert(1, n, 1);
for(int i=1,rt=0;i<=n;i++) {
int rev=sgt::query(rt, 0, n+1, arr[i]+1,n);
sgt::build(rt, 0, n+1, arr[i], rev, i);
}
multiset<LL> res;
res.emplace(sgt::tr[1].rev);
for(int i=1;i<=n;i++) {
cout<<*res.rbegin()<<" \n"[i==n];
LL p;
cin>>p;
p^=*res.rbegin();
auto [l,r,rt]=*seg.first_inter(p, p);
res.erase(res.find(sgt::tr[rt].rev));
auto [u,_]=sgt::split(rt, p);
auto [__,v]=sgt::split(_, p+1);
res.insert(sgt::tr[u].rev);
res.insert(sgt::tr[v].rev);
seg.erase(l, r);
if(l<=p-1) seg.insert(l, p-1, u);
if(p+1<=r) seg.insert(p+1, r, v);
}
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t;
cin>>t;
while(t--) solve();
return 0;
}
这程序好像有点Bug,我给组数据试试?
详细
Test #1:
score: 100
Accepted
time: 20ms
memory: 102848kb
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: 1940ms
memory: 109804kb
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