Package g1001_1100.s1024_video_stitching

Class Solution

java.lang.Object
g1001_1100.s1024_video_stitching.Solution
public class Solution extends Object
1024 - Video Stitching.<p>Medium</p> <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> <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> <p>We can cut these clips into segments freely.</p> <ul> <li>For example, a clip <code>[0, 7]</code> can be cut into segments <code>[0, 1] + [1, 3] + [3, 7]</code>.</li> </ul> <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> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> clips = [[0,2],[4,6],[8,10],[1,9],[1,5],[5,9]], time = 10</p> <p><strong>Output:</strong> 3</p> <p><strong>Explanation:</strong> We take the clips [0,2], [8,10], [1,9]; a total of 3 clips.</p> <p>Then, we can reconstruct the sporting event as follows:</p> <p>We cut [1,9] into segments [1,2] + [2,8] + [8,9].</p> <p>Now we have segments [0,2] + [2,8] + [8,10] which cover the sporting event [0, 10].</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> clips = [[0,1],[1,2]], time = 5</p> <p><strong>Output:</strong> -1</p> <p><strong>Explanation:</strong> We cannot cover [0,5] with only [0,1] and [1,2].</p> <p><strong>Example 3:</strong></p> <p><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</p> <p><strong>Output:</strong> 3</p> <p><strong>Explanation:</strong> We can take clips [0,4], [4,7], and [6,9].</p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= clips.length <= 100</code></li> <li><code>0 <= start<sub>i</sub> <= end<sub>i</sub> <= 100</code></li> <li><code>1 <= time <= 100</code></li> </ul>

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • videoStitching

      public int videoStitching(int[][] clips, int time)