YT14-先来练练手之电梯RUNTIME

Problem Description

Input

Output

Sample Input

1 2
3 2 3 1
0

Sample Output

17
41

代码如下：

#include <iostream>  
using namespace std;  
int main()  
{  
    int n;  
    while(cin>>n&&n!=0)  
    {  
        int a[n],i,sum=0;  
        if(n==1)  
        {  
            cin>>a[0];  
            cout<<(a[0]*6)+5<<endl;  
        }  
        else  
        {  
            for(i=0; i<n; ++i)  
                cin>>a[i];  
            sum+=(a[0]*6+5);  
            for(i=1; i<n; ++i)  
            {  
                if(a[i]>a[i-1])  
                    sum+=(5+(a[i]- a[i-1])*6);  
                else  
                    sum+=(5+(a[i-1]- a[i])*4);  
            }  
            cout<<sum<<endl;  
        }  
    }  
    return 0;  
}  

YT14-先来练练手之电梯RUNTIME

原文：http://blog.csdn.net/liuchang54/article/details/43202111