【PAT甲级】1008 Elevator

题目链接：1008 Elevator

#include <iostream> using namespace std; int main(){ int N, a = 0, b, sum = 0; cin >> N; for(int i = 0; i < N; i++){ cin >> b; sum += 5 + abs(a-b) * (b > a ? 6 : 4); a = b;//更新当前楼层 } cout << sum; }