#include <iostream>
#include <vector>
using namespace std;
int main()
{
vector<int>v;
int n;
cin>>n;
for(int i=0;i<n;++i)
{
int num;
cin>>num;
v.push_back(num);
}
int time=0;
int pre=0;
for(int i=0;i<n;++i)
{
if(v[i]>pre)
{
time+=6*(v[i]-pre)+5;
pre=v[i];
}
else
{
time+=4*(pre-v[i])+5;
pre=v[i];
}
}
cout<<time;
return 0;
}
1008 Elevator (20 分)
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转载自blog.csdn.net/qq_40795475/article/details/89340200
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