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"
#define f first
#define s second
#define ll long long
#define pb push_back
#define pii pair<ll,ll>
#define all(x) x.begin(),x.end()
using namespace std;
const int N=3e5+5;
struct lazy{
ll t[4*N]{0},lz[4*N]{0};
void push(int i,int l,int r){
if(lz[i]){
t[i]=lz[i];
if(l<r){
lz[2*i]=lz[i];
lz[2*i+1]=lz[i];
}lz[i]=0;
}
}
void upd(int i,int l,int r,int tl,int tr,int v){
push(i,l,r);
if(r<tl||l>tr)return;
if(r<=tr&&l>=tl){
lz[i]=v;push(i,l,r);return;
}int m=(l+r)>>1;
upd(2*i,l,m,tl,tr,v);upd(2*i+1,m+1,r,tl,tr,v);
t[i]=max(t[2*i],t[2*i+1]);
}
ll qr(int i,int l,int r,int tl,int tr){
push(i,l,r);
if(r<tl||l>tr)return 0;
if(r<=tr&&l>=tl)return t[i];
int m=(l+r)>>1;
return max(qr(2*i,l,m,tl,tr),qr(2*i+1,m+1,r,tl,tr));
}
}lt;
ll t[2*N]{0};
void upd1(int i,ll amt,int sz){
i+=sz;t[i]=amt;
for(i>>=1;i;i>>=1)t[i]=max(t[2*i],t[2*i+1]);
}
void upd2(int i,ll amt,int sz){
i+=sz;t[i]=max(amt,t[i]);
for(i>>=1;i;i>>=1)t[i]=max(t[2*i],t[2*i+1]);
}
ll qr1(int l,int r,int sz,ll res=0){
for(l+=sz,r+=sz;l<r;l>>=1,r>>=1){
if(l&1)res=max(res,t[l++]);
if(r&1)res=max(res,t[--r]);
}return res;
}
vector<ll>co;
int main(){
ios_base::sync_with_stdio(0);cin.tie(0);
ll n,d;cin>>n>>d;
ll a[n+1];ll ans=0;
for(int i=1;i<=n;i++)cin>>a[i],co.pb(a[i]);
sort(all(co));co.erase(unique(all(co)),co.end());int sz=co.size();
for(int i=1;i<=n;i++){
int id = upper_bound(all(co),a[i])-co.begin();
int l=1,r=sz;
while(l<r){
int m=(l+r)>>1;
if(i-lt.qr(1,1,sz,m,m)>d)l=m+1;
else r=m;
}
int tmp = qr1(l-1,id-1,sz)+1;ans=max(ans,tmp);
if(l<=id)upd2(id-1,tmp,sz);
else upd1(id-1,tmp,sz);
lt.upd(1,1,sz,id,sz,i);
}cout<<ans;
}
Compilation message (stderr)
Main.cpp: In function 'int main()':
Main.cpp:68:53: error: no matching function for call to 'max(long long int&, int&)'
68 | int tmp = qr1(l-1,id-1,sz)+1;ans=max(ans,tmp);
| ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/ios:40,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from Main.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
254 | max(const _Tp& __a, const _Tp& __b)
| ^~~
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: template argument deduction/substitution failed:
Main.cpp:68:53: note: deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
68 | int tmp = qr1(l-1,id-1,sz)+1;ans=max(ans,tmp);
| ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/ios:40,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from Main.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
300 | max(const _Tp& __a, const _Tp& __b, _Compare __comp)
| ^~~
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: template argument deduction/substitution failed:
Main.cpp:68:53: note: deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
68 | int tmp = qr1(l-1,id-1,sz)+1;ans=max(ans,tmp);
| ^
In file included from /usr/include/c++/10/algorithm:62,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from Main.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
3480 | max(initializer_list<_Tp> __l)
| ^~~
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: template argument deduction/substitution failed:
Main.cpp:68:53: note: mismatched types 'std::initializer_list<_Tp>' and 'long long int'
68 | int tmp = qr1(l-1,id-1,sz)+1;ans=max(ans,tmp);
| ^
In file included from /usr/include/c++/10/algorithm:62,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from Main.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
3486 | max(initializer_list<_Tp> __l, _Compare __comp)
| ^~~
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: template argument deduction/substitution failed:
Main.cpp:68:53: note: mismatched types 'std::initializer_list<_Tp>' and 'long long int'
68 | int tmp = qr1(l-1,id-1,sz)+1;ans=max(ans,tmp);
| ^