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74 lines
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74 lines
4.0 KiB
HTML
<p>给你一个数组 <code>start</code> ,其中 <code>start = [startX, startY]</code> 表示你的初始位置位于二维空间上的 <code>(startX, startY)</code> 。另给你一个数组 <code>target</code> ,其中 <code>target = [targetX, targetY]</code> 表示你的目标位置 <code>(targetX, targetY)</code> 。</p>
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<p>从位置 <code>(x1, y1)</code> 到空间中任一其他位置 <code>(x2, y2)</code> 的 <strong>代价</strong> 是 <code>|x2 - x1| + |y2 - y1|</code> 。</p>
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<p>给你一个二维数组 <code>specialRoads</code> ,表示空间中存在的一些 <strong>特殊路径</strong>。其中 <code>specialRoads[i] = [x1<sub>i</sub>, y1<sub>i</sub>, x2<sub>i</sub>, y2<sub>i</sub>, cost<sub>i</sub>]</code> 表示第 <code>i</code> 条特殊路径可以从 <code>(x1<sub>i</sub>, y1<sub>i</sub>)</code> 到 <code>(x2<sub>i</sub>, y2<sub>i</sub>)</code> ,但成本等于 <code>cost<sub>i</sub></code> 。你可以使用每条特殊路径任意次数。</p>
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<p>返回从 <code>(startX, startY)</code> 到 <code>(targetX, targetY)</code> 所需的 <strong>最小</strong> 代价。</p>
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<p> </p>
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<p><strong class="example">示例 1:</strong></p>
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<div class="example-block">
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<p><strong>输入:</strong><span class="example-io">start = [1,1], target = [4,5], specialRoads = [[1,2,3,3,2],[3,4,4,5,1]]</span></p>
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<p><span class="example-io"><b>输出:</b>5</span></p>
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<p><b>解释:</b></p>
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<ol>
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<li>(1,1) 到 (1,2) 花费为 |1 - 1| + |2 - 1| = 1。</li>
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<li>(1,2) 到 (3,3)。使用 <code><span class="example-io">specialRoads[0]</span></code><span class="example-io"> 花费为</span><span class="example-io"> 2。</span></li>
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<li><span class="example-io">(3,3) </span>到<span class="example-io"> (3,4) </span>花费为<span class="example-io"> |3 - 3| + |4 - 3| = 1。</span></li>
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<li><span class="example-io">(3,4) </span>到<span class="example-io"> (4,5)。</span>使用<span class="example-io"> </span><code><span class="example-io">specialRoads[1]</span></code><span class="example-io"> 花费为</span><span class="example-io"> 1。</span></li>
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</ol>
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<p><span class="example-io">所以总花费是 1 + 2 + 1 + 1 = 5。</span></p>
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</div>
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<p><strong class="example">示例 2:</strong></p>
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<div class="example-block">
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<p><strong>输入:</strong><span class="example-io">start = [3,2], target = [5,7], specialRoads = [[5,7,3,2,1],[3,2,3,4,4],[3,3,5,5,5],[3,4,5,6,6]]</span></p>
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<p><span class="example-io"><b>输出:</b></span><span class="example-io">7</span></p>
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<p><b>解释:</b></p>
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<p>不使用任何特殊路径,直接从开始到结束位置是最优的,花费为 |5 - 3| + |7 - 2| = 7。</p>
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<p>注意 <span class="example-io"><code>specialRoads[0]</code> 直接从 (5,7) 到 (3,2)。</span></p>
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</div>
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<p><strong class="example">示例 3:</strong></p>
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<div class="example-block">
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<p><strong>输入:</strong><span class="example-io">start = [1,1], target = [10,4], specialRoads = [[4,2,1,1,3],[1,2,7,4,4],[10,3,6,1,2],[6,1,1,2,3]]</span></p>
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<p><span class="example-io"><b>输出:</b></span><span class="example-io">8</span></p>
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<p><b>解释:</b></p>
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<ol>
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<li>(1,1) 到 (1,2) 花费为 |1 - 1| + |2 - 1| = 1。</li>
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<li>(1,2) 到 (7,4)。使用 <code><span class="example-io">specialRoads[1]</span></code><span class="example-io"> 花费为</span><span class="example-io"> 4。</span></li>
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<li>(7,4) 到 (10,4) 花费为 |10 - 7| + |4 - 4| = 3。</li>
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</ol>
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</div>
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<p> </p>
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<p><strong>提示:</strong></p>
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<ul>
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<li><code>start.length == target.length == 2</code></li>
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<li><code>1 <= startX <= targetX <= 10<sup>5</sup></code></li>
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<li><code>1 <= startY <= targetY <= 10<sup>5</sup></code></li>
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<li><code>1 <= specialRoads.length <= 200</code></li>
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<li><code>specialRoads[i].length == 5</code></li>
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<li><code>startX <= x1<sub>i</sub>, x2<sub>i</sub> <= targetX</code></li>
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<li><code>startY <= y1<sub>i</sub>, y2<sub>i</sub> <= targetY</code></li>
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<li><code>1 <= cost<sub>i</sub> <= 10<sup>5</sup></code></li>
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</ul>
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