leetcode-problemset/leetcode-cn/originData/intersection-lcci.json

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        "question": {
            "questionId": "100260",
            "questionFrontendId": "面试题 16.03",
            "categoryTitle": "LCCI",
            "boundTopicId": 68728,
            "title": "Intersection LCCI",
            "titleSlug": "intersection-lcci",
            "content": "<p>Given two straight line segments (represented as a start point and an end point), compute the point of intersection, if any. If there&#39;s no intersection, return an empty array.</p>\r\nThe absolute error should not exceed 10^-6. If there are more than one intersections, return the one with smallest X axis value. If there are more than one intersections that have same X axis value, return the one with smallest Y axis value.\r\n\r\n<p><strong>Example 1: </strong></p>\r\n\r\n<pre>\r\n<strong>Input: </strong>\r\nline1 = {0, 0}, {1, 0}\r\nline2 = {1, 1}, {0, -1}\r\n<strong>Output: </strong> {0.5, 0}\r\n</pre>\r\n\r\n<p><strong>Example 2: </strong></p>\r\n\r\n<pre>\r\n<strong>Input: </strong>\r\nline1 = {0, 0}, {3, 3}\r\nline2 = {1, 1}, {2, 2}\r\n<strong>Output: </strong> {1, 1}\r\n</pre>\r\n\r\n<p><strong>Example 3: </strong></p>\r\n\r\n<pre>\r\n<strong>Input: </strong>\r\nline1 = {0, 0}, {1, 1}\r\nline2 = {1, 0}, {2, 1}\r\n<strong>Output: </strong> {}  (no intersection)\r\n</pre>\r\n\r\n<p><strong>Note: </strong></p>\r\n\r\n<ul>\r\n\t<li>The absolute value of coordinate value will not exceed 2^7.</li>\r\n\t<li>All coordinates are valid 2D coordinates.</li>\r\n</ul>\r\n",
            "translatedTitle": "交点",
            "translatedContent": "<p>给定两条线段（表示为起点<code>start = {X1, Y1}</code>和终点<code>end = {X2, Y2}</code>），如果它们有交点，请计算其交点，没有交点则返回空值。</p>\n\n<p>要求浮点型误差不超过<code>10^-6</code>。若有多个交点（线段重叠）则返回 X 值最小的点，X 坐标相同则返回 Y 值最小的点。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre><strong>输入：</strong>\nline1 = {0, 0}, {1, 0}\nline2 = {1, 1}, {0, -1}\n<strong>输出：</strong> {0.5, 0}\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre><strong>输入：</strong>\nline1 = {0, 0}, {3, 3}\nline2 = {1, 1}, {2, 2}\n<strong>输出：</strong> {1, 1}\n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<pre><strong>输入：</strong>\nline1 = {0, 0}, {1, 1}\nline2 = {1, 0}, {2, 1}\n<strong>输出：</strong> {}，两条线段没有交点\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li>坐标绝对值不会超过 2^7</li>\n\t<li>输入的坐标均是有效的二维坐标</li>\n</ul>\n",
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                    "lang": "C++",
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                    "code": "class Solution {\npublic:\n    vector<double> intersection(vector<int>& start1, vector<int>& end1, vector<int>& start2, vector<int>& end2) {\n\n    }\n};",
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                    "code": "class Solution {\n    public double[] intersection(int[] start1, int[] end1, int[] start2, int[] end2) {\n\n    }\n}",
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                    "code": "class Solution(object):\n    def intersection(self, start1, end1, start2, end2):\n        \"\"\"\n        :type start1: List[int]\n        :type end1: List[int]\n        :type start2: List[int]\n        :type end2: List[int]\n        :rtype: List[float]\n        \"\"\"",
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                    "lang": "Python3",
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                    "code": "class Solution:\n    def intersection(self, start1: List[int], end1: List[int], start2: List[int], end2: List[int]) -> List[float]:",
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                    "lang": "C",
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                    "code": "\n\n/**\n * Note: The returned array must be malloced, assume caller calls free().\n */\ndouble* intersection(int* start1, int start1Size, int* end1, int end1Size, int* start2, int start2Size, int* end2, int end2Size, int* returnSize){\n\n}\n",
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                    "code": "public class Solution {\n    public double[] Intersection(int[] start1, int[] end1, int[] start2, int[] end2) {\n\n    }\n}",
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                    "code": "/**\n * @param {number[]} start1\n * @param {number[]} end1\n * @param {number[]} start2\n * @param {number[]} end2\n * @return {number[]}\n */\nvar intersection = function(start1, end1, start2, end2) {\n\n};",
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                    "code": "function intersection(start1: number[], end1: number[], start2: number[], end2: number[]): number[] {\n\n};",
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                    "code": "class Solution {\n\n    /**\n     * @param Integer[] $start1\n     * @param Integer[] $end1\n     * @param Integer[] $start2\n     * @param Integer[] $end2\n     * @return Float[]\n     */\n    function intersection($start1, $end1, $start2, $end2) {\n\n    }\n}",
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                    "code": "class Solution {\n    func intersection(_ start1: [Int], _ end1: [Int], _ start2: [Int], _ end2: [Int]) -> [Double] {\n\n    }\n}",
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                    "code": "class Solution {\n    fun intersection(start1: IntArray, end1: IntArray, start2: IntArray, end2: IntArray): DoubleArray {\n\n    }\n}",
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                    "code": "class Solution {\n  List<double> intersection(List<int> start1, List<int> end1, List<int> start2, List<int> end2) {\n\n  }\n}",
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                    "lang": "Go",
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                    "code": "func intersection(start1 []int, end1 []int, start2 []int, end2 []int) []float64 {\n\n}",
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                    "lang": "Ruby",
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                    "code": "# @param {Integer[]} start1\n# @param {Integer[]} end1\n# @param {Integer[]} start2\n# @param {Integer[]} end2\n# @return {Float[]}\ndef intersection(start1, end1, start2, end2)\n\nend",
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                    "lang": "Scala",
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                    "code": "object Solution {\n    def intersection(start1: Array[Int], end1: Array[Int], start2: Array[Int], end2: Array[Int]): Array[Double] = {\n\n    }\n}",
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                    "lang": "Rust",
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                    "code": "impl Solution {\n    pub fn intersection(start1: Vec<i32>, end1: Vec<i32>, start2: Vec<i32>, end2: Vec<i32>) -> Vec<f64> {\n\n    }\n}",
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                    "code": "(define/contract (intersection start1 end1 start2 end2)\n  (-> (listof exact-integer?) (listof exact-integer?) (listof exact-integer?) (listof exact-integer?) (listof flonum?))\n\n  )",
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                    "lang": "Erlang",
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                    "code": "-spec intersection(Start1 :: [integer()], End1 :: [integer()], Start2 :: [integer()], End2 :: [integer()]) -> [float()].\nintersection(Start1, End1, Start2, End2) ->\n  .",
                    "__typename": "CodeSnippetNode"
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                    "lang": "Elixir",
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                    "code": "defmodule Solution do\n  @spec intersection(start1 :: [integer], end1 :: [integer], start2 :: [integer], end2 :: [integer]) :: [float]\n  def intersection(start1, end1, start2, end2) do\n\n  end\nend",
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            "hints": [
                "所有的线都会相交吗？什么决定两条线是否相交？",
                "无限长的线几乎总会相交，除非它们相互平行。平行线也仍然有可能“相交”——如果它们是同一条线。这对线段来说意味着什么？",
                "我们怎样才能找到两条线的交点。如果两条线相交，那么交点必须与它们的“无限”延伸处于同一点。这两条线之间是交点吗？",
                "仔细考虑如何处理线段具有相同斜率和与y轴相交的情况。"
            ],
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