PAT1008

http://www.patest.cn/contests/pat-a-practise/1008

#include <iostream>using namespace std;int elevator_go(int,int);int main(){    int N,nex,pre=0,sum=0;    cin>>N;    while(N--){        cin>>nex;        sum+=elevator_go(pre,nex);        pre=nex;    }    cout<<sum;    return 0;} int elevator_go(int beg,int end){    int ret;    if(end>beg){        ret=(end-beg)*6+5;    }else{        ret=(beg-end)*4+5;    }    return ret;}