#include "shortcut.h"
#include<bits/stdc++.h>
using namespace std;
const long long maxn=1000000+10;
long long inf=1e16,n,c;
long long alld[maxn],mainres=inf,mxa[maxn],mxb[maxn];
vector<long long>all;
long long pors(long long l,long long r){
long long b=all[r]-all[l]+c;
long long fake=0;
for(long long i=0;i<n;i++){
if(i<=l){
fake=max(fake,alld[i]+all[l]-all[i]+min(c,b-c)+mxb[r]);
fake=max(fake,alld[i]+all[i]-(i==0?0:all[i-1])+(i==0?0:mxa[i-1]));
}else if(i>=r){
fake=max(fake,alld[i]+all[i]-all[r]+min(c,b-c)+mxa[l]);
fake=max(fake,alld[i]-all[i]+all[i+1]+mxb[i+1]);
}else{
fake=max(fake,min(all[i]-all[l],b-(all[i]-all[l]))+mxa[l]+alld[i]);
fake=max(fake,min(all[r]-all[i],b-(all[r]-all[i]))+mxb[r]+alld[i]);
}
}
for(long long i=l;i<=r;i++){
//for(long long j=i+1;j<=r;j++){
int h=lower_bound(all.begin(),all.end(),all[i]+b/2);
for(int j=h-1;j<=h+1;h++){
if(j>r||j<l){
continue;
}
fake=max(fake,min(b-(all[j]-all[i]),all[j]-all[i])+alld[i]+alld[j]);
}
h=lower_bound(all.begin().all.end(),all[i]-b/2);
for(int j=h-1;j<=h+1;h++){
if(j>r||j<l){
continue;
}
fake=max(fake,min(b-(all[j]-all[i]),all[j]-all[i])+alld[i]+alld[j]);
}
//}
}
return fake;
}
void solve(long long l,long long r,long long tl=0,long long tr=n-1){
for(long long i=0;i<n;i++){
for(long long j=i;j<n;j++){
mainres=min(mainres,pors(i,j));
}
}
}
long long find_shortcut(int n_, std::vector<int> l, std::vector<int> d, int c_)
{
n=n_;
c=c_;
all.push_back(0);
alld[0]=d[0];
l.push_back(0);
for(long long i=1;i<n;i++){
all.push_back(all.back()+l[i-1]);
alld[i]=d[i];
}
for(long long i=0;i<n;i++){
if(i!=0){
mxa[i]=max(mxa[i-1]+l[i-1],alld[i]);
}else{
mxa[i]=alld[i];
}
}
all[n]=all[n-1];
for(long long i=n-1;i>=0;i--){
mxb[i]=max(mxb[i+1]+l[i],alld[i]);
}
solve(0,n-1);
return mainres;
}
Compilation message
shortcut.cpp: In function 'long long int pors(long long int, long long int)':
shortcut.cpp:26:30: error: cannot convert '__gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >' to 'int' in initialization
26 | int h=lower_bound(all.begin(),all.end(),all[i]+b/2);
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| |
| __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >
shortcut.cpp:33:39: error: 'std::vector<long long int>::iterator' has no member named 'all'
33 | h=lower_bound(all.begin().all.end(),all[i]-b/2);
| ^~~
