杭电ACM 1008Elevator

http://acm.hdu.edu.cn/showproblem.php?pid=1008

电梯问题，好弱智的一道题~~

#include<iostream>using namespace std;int main(){int T;cin>>T;int m,pre,time;while(T){pre=0;time=0;for(int i=0;i<T;i++){ cin>>m;  if(m-pre<0)  time+=(pre-m)*4; else time+=(m-pre)*6; pre=m;}cout<<5*T+time<<endl;cin>>T;}}