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"holiday.h"
//#include "grader.h"
#include<bits/stdc++.h>
using namespace std;
long long a,b,c,d,e,i,j,ii,jj,zx,xc,f[300009],D,pas,jm,n,g[300009],LF[300009][3],RG[300009][3],RR,za,T[300009],l,r,z,zz,k,seg[300009],seg2[300009],K;
map <int, int> M;
map <int, int>::iterator IT;
void upd(int q, int w, int rr){
q=za+q-1;
while(q!=0){
seg[q]+=w;seg2[q]+=rr;
q/=2;
}
}
void wv(){
za=1;
while(za<a) za*=2;
for(i=0; i<=za*2; i++){
seg[i]=seg2[i]=0;
}
for(i=0; i<=za; i++) T[i]=0;
M.clear();
for(i=1; i<=a; i++) M[f[i]]=1;
zx=0;
for(IT=M.begin(); IT!=M.end(); IT++){
zx++;M[(*IT).first]=zx;T[zx]=(*IT).first;
}
for(i=1; i<=a; i++) f[i]=M[f[i]];
//
upd(f[1],1,T[f[1]]);K=1;
}
void Moveto(int q){
while(K<q){
K++;upd(f[K],1,T[f[K]]);
}
while(K>q){
upd(f[K],-1,-T[f[K]]);K--;
}
}
void read(int q, int w, int rr){
if(q>w||k<=0) return;
if(seg[rr]<=k){
k-=seg[rr];
z+=seg2[rr];
return;
}
if(q==w){
z+=T[q]*k;
k=0;
return;
}
read((q+w)/2+1,w,rr*2+1);
read(q,(q+w)/2,rr*2);
}
void rec(int q, int w, int qq, int ww){
if(q>w) return;
int mid=(q+w)/2,we=0;
long long qw=0;
for(int h=qq; h<=ww; h++){
Moveto(h);
k=mid-(h-1)*RR;z=0;
if(k<=0) break;
read(1,za,1);
if(qw<z){
qw=z;we=h;
}
}
LF[mid][RR]=qw;
rec(q,mid-1,qq,we);
rec(mid+1,w,we,ww);
}
long long int findMaxAttraction(int Nn, int start, int Dd, int attraction[]) {
n=Nn;start++;D=Dd;a=n;
for(i=1; i<=n; i++){
g[i]=attraction[i-1];f[i]=g[i];
}
for(i=start; i<=n; i++){
f[i-start+1]=g[i];
}
a=n-start+1;RR=1;
wv();
rec(1,D,1,a);
RR=2;
rec(1,D,1,a);
for(i=1; i<=D; i++){
RG[i][1]=LF[i][1];RG[i][2]=LF[i][2];
LF[i][1]=LF[i][2]=0;
}
if(start!=1){
for(i=start-1; i>=1; i--){
f[start-1-i+1]=g[i];
}
a=start-1;RR=1;
wv();
rec(1,D,1,a);
RR=2;
rec(1,D,1,a);
}
//
if(start==1) return RG[D][1];
pas=max(pas,RG[D][1]);
for(i=0; i<=D; i++){
if(D-i-2>=0){
zx=LF[i][2]+RG[D-i-2][1];
pas=max(pas,zx);
}
if(D-i-1>=0){
zx=RG[i][2]+LF[D-i-1][1];
pas=max(pas,zx);
}
}
return pas;
}
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