You have planned some train traveling one year in advance. The days of the year in which you will travel are given as an integer array days. Each day is an integer from 1 to 365.
Train tickets are sold in three different ways:
\n\ncosts[0] dollars,costs[1] dollars, andcosts[2] dollars.The passes allow that many days of consecutive travel.
\n\n2, then we can travel for 7 days: 2, 3, 4, 5, 6, 7, and 8.Return the minimum number of dollars you need to travel every day in the given list of days.
\n\n\n
Example 1:
\n\n\nInput: days = [1,4,6,7,8,20], costs = [2,7,15]\nOutput: 11\nExplanation: For example, here is one way to buy passes that lets you travel your travel plan:\nOn day 1, you bought a 1-day pass for costs[0] = $2, which covered day 1.\nOn day 3, you bought a 7-day pass for costs[1] = $7, which covered days 3, 4, ..., 9.\nOn day 20, you bought a 1-day pass for costs[0] = $2, which covered day 20.\nIn total, you spent $11 and covered all the days of your travel.\n\n\n
Example 2:
\n\n\nInput: days = [1,2,3,4,5,6,7,8,9,10,30,31], costs = [2,7,15]\nOutput: 17\nExplanation: For example, here is one way to buy passes that lets you travel your travel plan:\nOn day 1, you bought a 30-day pass for costs[2] = $15 which covered days 1, 2, ..., 30.\nOn day 31, you bought a 1-day pass for costs[0] = $2 which covered day 31.\nIn total, you spent $17 and covered all the days of your travel.\n\n\n
\n
Constraints:
\n\n1 <= days.length <= 3651 <= days[i] <= 365days is in strictly increasing order.costs.length == 31 <= costs[i] <= 1000在一个火车旅行很受欢迎的国度，你提前一年计划了一些火车旅行。在接下来的一年里，你要旅行的日子将以一个名为 days 的数组给出。每一项是一个从 1 到 365 的整数。
火车票有 三种不同的销售方式 ：
\n\ncosts[0] 美元；costs[1] 美元；costs[2] 美元。通行证允许数天无限制的旅行。 例如，如果我们在第 2 天获得一张 为期 7 天 的通行证，那么我们可以连着旅行 7 天：第 2 天、第 3 天、第 4 天、第 5 天、第 6 天、第 7 天和第 8 天。
返回 你想要完成在给定的列表 days 中列出的每一天的旅行所需要的最低消费 。
\n\n
示例 1：
\n\n\n输入：days = [1,4,6,7,8,20], costs = [2,7,15]\n输出：11\n解释： \n例如，这里有一种购买通行证的方法，可以让你完成你的旅行计划：\n在第 1 天，你花了 costs[0] = $2 买了一张为期 1 天的通行证，它将在第 1 天生效。\n在第 3 天，你花了 costs[1] = $7 买了一张为期 7 天的通行证，它将在第 3, 4, ..., 9 天生效。\n在第 20 天，你花了 costs[0] = $2 买了一张为期 1 天的通行证，它将在第 20 天生效。\n你总共花了 $11，并完成了你计划的每一天旅行。\n\n\n
示例 2：
\n\n\n输入：days = [1,2,3,4,5,6,7,8,9,10,30,31], costs = [2,7,15]\n输出：17\n解释：\n例如，这里有一种购买通行证的方法，可以让你完成你的旅行计划： \n在第 1 天，你花了 costs[2] = $15 买了一张为期 30 天的通行证，它将在第 1, 2, ..., 30 天生效。\n在第 31 天，你花了 costs[0] = $2 买了一张为期 1 天的通行证，它将在第 31 天生效。 \n你总共花了 $17，并完成了你计划的每一天旅行。\n\n\n
\n\n
提示：
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