HDU 1008 Elevator

 

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

纯水题，就是要注意即使下一站是同一楼层也要停5秒

贴上代码：

#include <iostream>
#include <vector>
using namespace std;

int main (){
    int n , time, i;
    while ( cin >> n )
    {
        if ( n==0 )
            break;
        vector<int>floor(n);
        time=0;
        cin>>floor[0];
        time+=floor[0]*6+5;

        for (i=1; i<n; i++ )
        {
            cin>>floor[i];
            if ( floor[i]<floor[i-1] )
                time+= floor[i-1]*4-floor[i]*4 + 5;              //down
            else if ( floor[i] >= floor[i-1] )  
                time+= floor[i]*6-floor[i-1]*6 + 5;              //up
        }
        cout<<time<<endl;
    }
    return 0;
}