leetcode-problemset/leetcode-cn/originData/video-stitching.json

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        "question": {
            "questionId": "1081",
            "questionFrontendId": "1024",
            "categoryTitle": "Algorithms",
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            "title": "Video Stitching",
            "titleSlug": "video-stitching",
            "content": "<p>You are given a series of video clips from a sporting event that lasted <code>time</code> seconds. These video clips can be overlapping with each other and have varying lengths.</p>\n\n<p>Each video clip is described by an array <code>clips</code> where <code>clips[i] = [start<sub>i</sub>, end<sub>i</sub>]</code> indicates that the ith clip started at <code>start<sub>i</sub></code> and ended at <code>end<sub>i</sub></code>.</p>\n\n<p>We can cut these clips into segments freely.</p>\n\n<ul>\n\t<li>For example, a clip <code>[0, 7]</code> can be cut into segments <code>[0, 1] + [1, 3] + [3, 7]</code>.</li>\n</ul>\n\n<p>Return <em>the minimum number of clips needed so that we can cut the clips into segments that cover the entire sporting event</em> <code>[0, time]</code>. If the task is impossible, return <code>-1</code>.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> clips = [[0,2],[4,6],[8,10],[1,9],[1,5],[5,9]], time = 10\n<strong>Output:</strong> 3\n<strong>Explanation:</strong> We take the clips [0,2], [8,10], [1,9]; a total of 3 clips.\nThen, we can reconstruct the sporting event as follows:\nWe cut [1,9] into segments [1,2] + [2,8] + [8,9].\nNow we have segments [0,2] + [2,8] + [8,10] which cover the sporting event [0, 10].\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> clips = [[0,1],[1,2]], time = 5\n<strong>Output:</strong> -1\n<strong>Explanation:</strong> We cannot cover [0,5] with only [0,1] and [1,2].\n</pre>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> clips = [[0,1],[6,8],[0,2],[5,6],[0,4],[0,3],[6,7],[1,3],[4,7],[1,4],[2,5],[2,6],[3,4],[4,5],[5,7],[6,9]], time = 9\n<strong>Output:</strong> 3\n<strong>Explanation:</strong> We can take clips [0,4], [4,7], and [6,9].\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= clips.length &lt;= 100</code></li>\n\t<li><code>0 &lt;= start<sub>i</sub> &lt;= end<sub>i</sub> &lt;= 100</code></li>\n\t<li><code>1 &lt;= time &lt;= 100</code></li>\n</ul>\n",
            "translatedTitle": "视频拼接",
            "translatedContent": "<p>你将会获得一系列视频片段，这些片段来自于一项持续时长为&nbsp;<code>time</code>&nbsp;秒的体育赛事。这些片段可能有所重叠，也可能长度不一。</p>\n\n<p>使用数组&nbsp;<code>clips</code> 描述所有的视频片段，其中 <code>clips[i] = [start<sub>i</sub>, end<sub>i</sub>]</code> 表示：某个视频片段开始于&nbsp;<code>start<sub>i</sub></code>&nbsp;并于&nbsp;<code>end<sub>i</sub></code>&nbsp;结束。</p>\n\n<p>甚至可以对这些片段自由地再剪辑：</p>\n\n<ul>\n\t<li>例如，片段&nbsp;<code>[0, 7]</code>&nbsp;可以剪切成&nbsp;<code>[0, 1] +&nbsp;[1, 3] + [3, 7]</code>&nbsp;三部分。</li>\n</ul>\n\n<p>我们需要将这些片段进行再剪辑，并将剪辑后的内容拼接成覆盖整个运动过程的片段（<code>[0, time]</code>）。返回所需片段的最小数目，如果无法完成该任务，则返回&nbsp;<code>-1</code> 。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>clips = [[0,2],[4,6],[8,10],[1,9],[1,5],[5,9]], time = 10\n<strong>输出：</strong>3\n<strong>解释：</strong>\n选中 [0,2], [8,10], [1,9] 这三个片段。\n然后，按下面的方案重制比赛片段：\n将 [1,9] 再剪辑为 [1,2] + [2,8] + [8,9] 。\n现在手上的片段为 [0,2] + [2,8] + [8,10]，而这些覆盖了整场比赛 [0, 10]。\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>clips = [[0,1],[1,2]], time = 5\n<strong>输出：</strong>-1\n<strong>解释：</strong>\n无法只用 [0,1] 和 [1,2] 覆盖 [0,5] 的整个过程。\n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<pre>\n<strong>输入：</strong>clips = [[0,1],[6,8],[0,2],[5,6],[0,4],[0,3],[6,7],[1,3],[4,7],[1,4],[2,5],[2,6],[3,4],[4,5],[5,7],[6,9]], time = 9\n<strong>输出：</strong>3\n<strong>解释： </strong>\n选取片段 [0,4], [4,7] 和 [6,9] 。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= clips.length &lt;= 100</code></li>\n\t<li><code>0 &lt;= start<sub>i</sub> &lt;= end<sub>i</sub> &lt;= 100</code></li>\n\t<li><code>1 &lt;= time &lt;= 100</code></li>\n</ul>\n",
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                    "lang": "C++",
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                    "code": "class Solution {\npublic:\n    int videoStitching(vector<vector<int>>& clips, int time) {\n\n    }\n};",
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                    "code": "class Solution {\n    public int videoStitching(int[][] clips, int time) {\n\n    }\n}",
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                    "code": "class Solution(object):\n    def videoStitching(self, clips, time):\n        \"\"\"\n        :type clips: List[List[int]]\n        :type time: int\n        :rtype: int\n        \"\"\"",
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                    "code": "class Solution:\n    def videoStitching(self, clips: List[List[int]], time: int) -> int:",
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                    "lang": "C",
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                    "code": "int videoStitching(int** clips, int clipsSize, int* clipsColSize, int time) {\n    \n}",
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                    "code": "public class Solution {\n    public int VideoStitching(int[][] clips, int time) {\n\n    }\n}",
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                    "code": "/**\n * @param {number[][]} clips\n * @param {number} time\n * @return {number}\n */\nvar videoStitching = function(clips, time) {\n\n};",
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                    "code": "function videoStitching(clips: number[][], time: number): number {\n    \n};",
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                    "code": "class Solution {\n\n    /**\n     * @param Integer[][] $clips\n     * @param Integer $time\n     * @return Integer\n     */\n    function videoStitching($clips, $time) {\n\n    }\n}",
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                    "code": "class Solution {\n    func videoStitching(_ clips: [[Int]], _ time: Int) -> Int {\n\n    }\n}",
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                    "code": "class Solution {\n    fun videoStitching(clips: Array<IntArray>, time: Int): Int {\n\n    }\n}",
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                    "code": "class Solution {\n  int videoStitching(List<List<int>> clips, int time) {\n    \n  }\n}",
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                    "code": "func videoStitching(clips [][]int, time int) int {\n\n}",
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                    "code": "# @param {Integer[][]} clips\n# @param {Integer} time\n# @return {Integer}\ndef video_stitching(clips, time)\n\nend",
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                    "code": "object Solution {\n    def videoStitching(clips: Array[Array[Int]], time: Int): Int = {\n\n    }\n}",
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                    "code": "impl Solution {\n    pub fn video_stitching(clips: Vec<Vec<i32>>, time: i32) -> i32 {\n\n    }\n}",
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                "What if we sort the intervals?  Considering the sorted intervals, how can we solve the problem with dynamic programming?",
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