This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
#include "bubblesort2.h"
//#include "grader.cpp"
using namespace std;
const int INF=1e9;
typedef pair<int,int> pii;
map<pii,int> nrm;
int arb[4000005],toprop[4000005];
int q,n;
vector<pii> query;
vector<int> v;
set<pii> s;
int nr=0;
void prop(int nod)
{
int val=toprop[nod];
for(int i=nod*2;i<=nod*2+1;i++)
{
arb[i]+=val;
toprop[i]+=val;
}
}
void update(int nod,int st,int dr,int a,int b,int val)
{
if(toprop[nod]!=0&&st!=dr)
prop(nod);
toprop[nod]=0;
if(st>=a&&dr<=b)
{
arb[nod]+=val;
toprop[nod]+=val;
return;
}
int mij=(st+dr)/2;
if(a<=mij)
update(nod*2,st,mij,a,b,val);
if(b>mij)
update(nod*2+1,mij+1,dr,a,b,val);
arb[nod]=max(arb[nod*2],arb[nod*2+1]);
}
std::vector<int> countScans(std::vector<int> A,std::vector<int> X,std::vector<int> V)
{
vector<int> sol;
q=X.size();
n=A.size();
for(int i=0;i<q;i++)
query.push_back({X[i],V[i]});
v=A;
for(int i=0;i<q;i++)
s.insert({V[i],X[i]});
for(int i=0;i<n;i++)
s.insert({v[i],i});
for(pii i:s)
{
nr++;
nrm[i]=nr;
}
for(int i=1;i<=4*nr;i++)
arb[i]=-INF;
for(int i=0;i<n;i++)
{
int poz=nrm[{v[i],i}];
update(1,1,nr,poz,poz,+INF);
update(1,1,nr,poz,nr,-1);
update(1,1,nr,poz,poz,i+1);
}
for(int j=0;j<q;j++)
{
int poz;
int p=X[j];
poz=nrm[{v[p],p}];
update(1,1,nr,poz,poz,-(p+1));
update(1,1,nr,poz,nr,+1);
update(1,1,nr,poz,poz,-INF);
v[p]=V[j];
poz=nrm[{v[p],p}];
update(1,1,nr,poz,poz,(p+1));
update(1,1,nr,poz,nr,-1);
update(1,1,nr,poz,poz,+INF);
sol.push_back(arb[1]);
}
return sol;
}
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