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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 |
---|---|---|---|---|---|---|---|---|---|
#857040 | #9963. Express Rotations | ucup-team191# | WA | 3ms | 12132kb | C++23 | 4.8kb | 2025-01-15 01:53:19 | 2025-01-15 01:53:20 |
Judging History
answer
#include <bits/stdc++.h>
#define x first
#define X first
#define y second
#define Y second
#define pb push_back
#define PB push_back
#define all(a) begin(a),end(a)
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<ll> vl;
const int N = 5e5 + 500,M=1<<19;
const int INF = 0x3f3f3f3f;
const int MOD = 998244353;
const char en='\n';
const ll LLINF=1ll<<60;
ll seg[M*2+10],h[N],ovas[N];
void upd(int i,ll x)
{
seg[i+=M]=x;
for (i/=2;i;i/=2) seg[i]=seg[i*2]+seg[i*2+1];
}
ll ge(int l,int r,int lo=0,int hi=M,int i=1)
{
if (lo>=l && hi<=r) return seg[i];
if (lo>=r || hi<=l) return 0;
int mid=(lo+hi)/2;
return ge(l,r,lo,mid,i*2)+ge(l,r,mid,hi,i*2+1);
}
ll pr(int i)
{
return ge(0,i);
}
int n;
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cin>>n;
map<ll,vi> po;
for (int i=0;i<n;++i) cin>>h[i],po[-h[i]].pb(i),upd(i,h[i]);
set<pair<ll,int>> posi;
posi.insert({0ll,0});
set<int> sl;
for (int i=0;i<n;++i) sl.insert(i);
for (auto me: po)
{
ll va=-me.x;
vi gd=me.y;
vl befs(gd.size(),LLINF);
set<pair<ll,int>> nov;
vi opos;
for (auto x: posi) opos.pb(x.y),ovas[x.y]=x.x;
sort(all(opos));
for (auto x: opos) nov.insert({ovas[x]+pr(x),x});
int ci=0;
int gs=gd.size(),os=opos.size();
ll sve1=pr(n);
ll sve2=pr(n)-gs*va;
for (int i=0;i<gs;++i)
{
//10 after c
while (ci<os && opos[ci]<gd[i])
{
int cu=opos[ci];
auto it=nov.find({ovas[cu]+pr(cu),cu});
pair<ll,int> nn={ovas[cu]+pr(cu)+pr(n),cu};
nov.erase(it);
nov.insert(nn);
++ci;
}
ll csve=sve2;
if (i==0) csve-=pr(gd[i])+pr(n)-pr(gd.back()+1);
else csve-=pr(gd[i])-pr(gd[i-1]+1);
befs[(i+gs-1)%gs]=min(befs[(i+gs-1)%gs],nov.begin()->x-pr(gd[i])+csve);
}
//cout<<"after left p2"<<endl;
//for (int i=0;i<gs;++i) cout<<gd[i]<<' '<<befs[i]<<en;
for (auto x: gd) upd(x,0);
nov.clear();
for (auto x: opos)
{
//cout<<"st"<<x<<' '<<ovas[x]<<' '<<pr(x)<<en;
nov.insert({ovas[x]-pr(x),x});
}
ci=os-1;
for (int i=gs-1;i>=0;--i)
{
//10 after c
while (ci>=0 && opos[ci]>gd[i])
{
int cu=opos[ci];
//cout<<"changing "<<cu<<" from "<<ovas[cu]-pr(cu)<<" to "<<ovas[cu]-pr(cu)+pr(n)<<endl;
auto it=nov.find({ovas[cu]-pr(cu),cu});
pair<ll,int> nn={ovas[cu]-pr(cu)+pr(n),cu};
nov.erase(it);
nov.insert(nn);
--ci;
}
ll csve=sve2;
if (i==0) csve-=pr(gd[i])+pr(n)-pr(gd.back()+1);
else csve-=pr(gd[i])-pr(gd[i-1]+1);
//cout<<i<<' '<<nov.begin()->x<<' '<<nov.begin()->y<<' '<<pr(gd[i])<<' '<<csve<<en;
befs[(i+gs-1)%gs]=min(befs[(i+gs-1)%gs],nov.begin()->x+pr(gd[i])+csve);
}
//cout<<"after left p1"<<endl;
//for (int i=0;i<gs;++i) cout<<gd[i]<<' '<<befs[i]<<en;
nov.clear();
for (auto x: opos) nov.insert({ovas[x]+pr(x+1),x});
ci=0;
for (int i=0;i<gs;++i)
{
//10 before c
while (ci<os && opos[ci]<gd[i])
{
int cu=opos[ci];
auto it=nov.find({ovas[cu]+pr(cu+1),cu});
pair<ll,int> nn={ovas[cu]+pr(cu+1)+pr(n),cu};
nov.erase(it);
nov.insert(nn);
++ci;
}
ll csve=sve1;
if (i==gs-1) csve-=pr(gd[0])+pr(n)-pr(gd[i]+1);
else csve-=pr(gd[i+1])-pr(gd[i]+1);
befs[i]=min(befs[i],nov.begin()->x-pr(gd[i])+csve);
}
//cout<<"after right p1"<<endl;
//for (int i=0;i<gs;++i) cout<<gd[i]<<' '<<befs[i]<<en;
//transform 10 into -10
nov.clear();
for (auto x: gd) upd(x,-va);
//cout<<"pr: "<<endl;
//for (int i=0;i<=n;++i) cout<<pr(i)<<' ';
//cout<<en;
for (auto x: opos) nov.insert({ovas[x]-pr(x),x});
ci=os-1;
for (int i=gs-1;i>=0;--i)
{
while (ci>=0 && opos[ci]>gd[i])
{
int cu=opos[ci];
auto it=nov.find({ovas[cu]-pr(cu),cu});
pair<ll,int> nn={ovas[cu]-pr(cu)+pr(n),cu};
nov.erase(it);
nov.insert(nn);
--ci;
}
ll csve=sve1;
if (i==gs-1) csve-=pr(gd[0])+pr(n)-pr(gd[i]+1);
else csve-=pr(gd[i+1])-pr(gd[i]+1);
//cout<<i<<' '<<nov.begin()->x<<' '<<nov.begin()->y<<' '<<pr(gd[i]+1)<<' '<<csve<<en;
befs[i]=min(befs[i],nov.begin()->x+pr(gd[i]+1)+csve);
}
posi.clear();
for (auto x: gd) sl.erase(x);
if (sl.empty())
{
ll mi=LLINF;
for (int i=0;i<gs;++i) mi=min(mi,befs[i]);
cout<<mi<<en;
exit(0);
}
map<int,ll> mav;
for (int i=0;i<gs;++i)
{
auto it=sl.lower_bound(gd[i]);
if (it==sl.end()) it=sl.begin();
if (mav.find(*it)==mav.end()) mav[*it]=befs[i];
else mav[*it]=min(mav[*it],befs[i]);
}
for (auto x: mav) posi.insert({x.y,x.x});
for (auto x: gd) upd(x,0);
//cout<<"after right p2"<<endl;
//for (int i=0;i<gs;++i) cout<<gd[i]<<' '<<befs[i]<<en;
//for (auto x: posi) cout<<x.x<<' '<<x.y<<en;
//cout<<endl;
}
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 11996kb
input:
6 6 10 6 5 4 5
output:
16
result:
ok 1 number(s): "16"
Test #2:
score: 0
Accepted
time: 0ms
memory: 11872kb
input:
1 525434
output:
0
result:
ok 1 number(s): "0"
Test #3:
score: 0
Accepted
time: 0ms
memory: 11848kb
input:
20 724315 660084 703741 660084 33388 703741 724315 608476 703741 33388 660084 33388 703741 703741 724315 33388 660084 703741 703741 33388
output:
10450373
result:
ok 1 number(s): "10450373"
Test #4:
score: 0
Accepted
time: 3ms
memory: 12000kb
input:
1000 205212 781871 811133 847754 365647 686203 781871 811133 205212 811133 365647 553550 205212 365647 811133 205212 205212 781871 875225 781871 365647 344701 205212 875225 365647 365647 811133 781871 875225 811133 781871 365647 553550 686203 365647 79214 553550 686203 781871 781871 875225 811133 20...
output:
1703022119
result:
ok 1 number(s): "1703022119"
Test #5:
score: -100
Wrong Answer
time: 3ms
memory: 12132kb
input:
1000 301641 35540 535041 598876 422289 932926 891853 928749 403425 515013 323155 468767 875308 397761 252409 674812 40987 889920 172600 98116 799381 718712 739731 228116 729441 314232 916892 391198 205018 977734 406583 970126 527675 752117 616274 614112 241590 226939 726732 976461 657267 705600 9482...
output:
40316952193
result:
wrong answer 1st numbers differ - expected: '40529669812', found: '40316952193'