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            "title": "Find if Path Exists in Graph",
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            "content": "<p>There is a <strong>bi-directional</strong> graph with <code>n</code> vertices, where each vertex is labeled from <code>0</code> to <code>n - 1</code> (<strong>inclusive</strong>). The edges in the graph are represented as a 2D integer array <code>edges</code>, where each <code>edges[i] = [u<sub>i</sub>, v<sub>i</sub>]</code> denotes a bi-directional edge between vertex <code>u<sub>i</sub></code> and vertex <code>v<sub>i</sub></code>. Every vertex pair is connected by <strong>at most one</strong> edge, and no vertex has an edge to itself.</p>\n\n<p>You want to determine if there is a <strong>valid path</strong> that exists from vertex <code>source</code> to vertex <code>destination</code>.</p>\n\n<p>Given <code>edges</code> and the integers <code>n</code>, <code>source</code>, and <code>destination</code>, return <code>true</code><em> if there is a <strong>valid path</strong> from </em><code>source</code><em> to </em><code>destination</code><em>, or </em><code>false</code><em> otherwise</em><em>.</em></p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/08/14/validpath-ex1.png\" style=\"width: 141px; height: 121px;\" />\n<pre>\n<strong>Input:</strong> n = 3, edges = [[0,1],[1,2],[2,0]], source = 0, destination = 2\n<strong>Output:</strong> true\n<strong>Explanation:</strong> There are two paths from vertex 0 to vertex 2:\n- 0 &rarr; 1 &rarr; 2\n- 0 &rarr; 2\n</pre>\n\n<p><strong>Example 2:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/08/14/validpath-ex2.png\" style=\"width: 281px; height: 141px;\" />\n<pre>\n<strong>Input:</strong> n = 6, edges = [[0,1],[0,2],[3,5],[5,4],[4,3]], source = 0, destination = 5\n<strong>Output:</strong> false\n<strong>Explanation:</strong> There is no path from vertex 0 to vertex 5.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= n &lt;= 2 * 10<sup>5</sup></code></li>\n\t<li><code>0 &lt;= edges.length &lt;= 2 * 10<sup>5</sup></code></li>\n\t<li><code>edges[i].length == 2</code></li>\n\t<li><code>0 &lt;= u<sub>i</sub>, v<sub>i</sub> &lt;= n - 1</code></li>\n\t<li><code>u<sub>i</sub> != v<sub>i</sub></code></li>\n\t<li><code>0 &lt;= source, destination &lt;= n - 1</code></li>\n\t<li>There are no duplicate edges.</li>\n\t<li>There are no self edges.</li>\n</ul>\n",
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                    "code": "class Solution(object):\n    def validPath(self, n, edges, source, destination):\n        \"\"\"\n        :type n: int\n        :type edges: List[List[int]]\n        :type source: int\n        :type destination: int\n        :rtype: bool\n        \"\"\"\n        ",
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                    "code": "/**\n * @param {number} n\n * @param {number[][]} edges\n * @param {number} source\n * @param {number} destination\n * @return {boolean}\n */\nvar validPath = function(n, edges, source, destination) {\n    \n};",
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                    "code": "# @param {Integer} n\n# @param {Integer[][]} edges\n# @param {Integer} source\n# @param {Integer} destination\n# @return {Boolean}\ndef valid_path(n, edges, source, destination)\n    \nend",
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                    "code": "impl Solution {\n    pub fn valid_path(n: i32, edges: Vec<Vec<i32>>, source: i32, destination: i32) -> bool {\n        \n    }\n}",
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                    "code": "defmodule Solution do\n  @spec valid_path(n :: integer, edges :: [[integer]], source :: integer, destination :: integer) :: boolean\n  def valid_path(n, edges, source, destination) do\n\n  end\nend",
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