这题很简单直接上代码
#include <iostream>
using namespace std;
int main()
{
int N, sum=0, lastnum=0, num;
cin >> N;
for (int i=0; i<N; i++)
{
cin >> num;
if (num > lastnum)
sum = sum+(num-lastnum)*6+5;
else
sum = sum+(lastnum-num)*4+5;
lastnum = num;
}
cout << sum;
return 0;
}
end