PTA甲级考试真题练习8——1008 Elevator

题目

生词生句

1. The numbers denote at which floors the elevator will stop
   数字标识电梯将停在哪个楼层
2. in specified order
   按指定的顺序

思路

水题

代码

int main()
{
	int num;
	cin >> num;
	int cur_floor = 0;
	int sum_time = 0;
	for (int i = 0; i < num; ++i)
	{
		int to_floor;
		cin >> to_floor;
		int changefloor = to_floor - cur_floor;
		if (changefloor > 0)
		{
			sum_time += changefloor * 6;
		}
		else if (changefloor < 0)
		{
			sum_time += (-changefloor) * 4;
		}
		cur_floor = to_floor;
		sum_time += 5;
	}
	cout << sum_time;
}