mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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168 lines
19 KiB
JSON
168 lines
19 KiB
JSON
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"title": "Minimum Cost to Reach Destination in Time",
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"content": "<p>There is a country of <code>n</code> cities numbered from <code>0</code> to <code>n - 1</code> where <strong>all the cities are connected</strong> by bi-directional roads. The roads are represented as a 2D integer array <code>edges</code> where <code>edges[i] = [x<sub>i</sub>, y<sub>i</sub>, time<sub>i</sub>]</code> denotes a road between cities <code>x<sub>i</sub></code> and <code>y<sub>i</sub></code> that takes <code>time<sub>i</sub></code> minutes to travel. There may be multiple roads of differing travel times connecting the same two cities, but no road connects a city to itself.</p>\n\n<p>Each time you pass through a city, you must pay a passing fee. This is represented as a <strong>0-indexed</strong> integer array <code>passingFees</code> of length <code>n</code> where <code>passingFees[j]</code> is the amount of dollars you must pay when you pass through city <code>j</code>.</p>\n\n<p>In the beginning, you are at city <code>0</code> and want to reach city <code>n - 1</code> in <code>maxTime</code><strong> minutes or less</strong>. The <strong>cost</strong> of your journey is the <strong>summation of passing fees</strong> for each city that you passed through at some moment of your journey (<strong>including</strong> the source and destination cities).</p>\n\n<p>Given <code>maxTime</code>, <code>edges</code>, and <code>passingFees</code>, return <em>the <strong>minimum cost</strong> to complete your journey, or </em><code>-1</code><em> if you cannot complete it within </em><code>maxTime</code><em> minutes</em>.</p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/06/04/leetgraph1-1.png\" style=\"width: 371px; height: 171px;\" /></p>\n\n<pre>\n<strong>Input:</strong> maxTime = 30, edges = [[0,1,10],[1,2,10],[2,5,10],[0,3,1],[3,4,10],[4,5,15]], passingFees = [5,1,2,20,20,3]\n<strong>Output:</strong> 11\n<strong>Explanation:</strong> The path to take is 0 -> 1 -> 2 -> 5, which takes 30 minutes and has $11 worth of passing fees.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<p><strong><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/06/04/copy-of-leetgraph1-1.png\" style=\"width: 371px; height: 171px;\" /></strong></p>\n\n<pre>\n<strong>Input:</strong> maxTime = 29, edges = [[0,1,10],[1,2,10],[2,5,10],[0,3,1],[3,4,10],[4,5,15]], passingFees = [5,1,2,20,20,3]\n<strong>Output:</strong> 48\n<strong>Explanation:</strong> The path to take is 0 -> 3 -> 4 -> 5, which takes 26 minutes and has $48 worth of passing fees.\nYou cannot take path 0 -> 1 -> 2 -> 5 since it would take too long.\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> maxTime = 25, edges = [[0,1,10],[1,2,10],[2,5,10],[0,3,1],[3,4,10],[4,5,15]], passingFees = [5,1,2,20,20,3]\n<strong>Output:</strong> -1\n<strong>Explanation:</strong> There is no way to reach city 5 from city 0 within 25 minutes.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= maxTime <= 1000</code></li>\n\t<li><code>n == passingFees.length</code></li>\n\t<li><code>2 <= n <= 1000</code></li>\n\t<li><code>n - 1 <= edges.length <= 1000</code></li>\n\t<li><code>0 <= x<sub>i</sub>, y<sub>i</sub> <= n - 1</code></li>\n\t<li><code>1 <= time<sub>i</sub> <= 1000</code></li>\n\t<li><code>1 <= passingFees[j] <= 1000</code> </li>\n\t<li>The graph may contain multiple edges between two nodes.</li>\n\t<li>The graph does not contain self loops.</li>\n</ul>\n",
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"Consider a new graph where each node is one of the old nodes at a specific time. For example, node 0 at time 5.",
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