[{"language":"Java","code":"public class Solution {\n    public TreeNode pruneTree(TreeNode root) {\n        if (root == null) {\n            return null;\n        }\n\n        root.left = pruneTree(root.left);\n        root.right = pruneTree(root.right);\n\n        if (root.left == null && root.right == null && root.val == 0) {\n            return null;\n        }\n\n        return root;\n    }\n}","lang":"java","html":"<pre class=\"shiki shiki-themes github-light github-dark\" style=\"background-color:#fff;--shiki-dark-bg:#24292e;color:#24292e;--shiki-dark:#e1e4e8\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color:#D73A49;--shiki-dark:#F97583\">public</span><span style=\"color:#D73A49;--shiki-dark:#F97583\"> class</span><span style=\"color:#6F42C1;--shiki-dark:#B392F0\"> Solution</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> {</span></span>\n<span class=\"line\"><span style=\"color:#D73A49;--shiki-dark:#F97583\">    public</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> TreeNode </span><span style=\"color:#6F42C1;--shiki-dark:#B392F0\">pruneTree</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">(TreeNode </span><span style=\"color:#E36209;--shiki-dark:#FFAB70\">root</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">) {</span></span>\n<span class=\"line\"><span style=\"color:#D73A49;--shiki-dark:#F97583\">        if</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> (root </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">==</span><span style=\"color:#005CC5;--shiki-dark:#79B8FF\"> null</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">) {</span></span>\n<span class=\"line\"><span style=\"color:#D73A49;--shiki-dark:#F97583\">            return</span><span style=\"color:#005CC5;--shiki-dark:#79B8FF\"> null</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">;</span></span>\n<span class=\"line\"><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">        }</span></span>\n<span class=\"line\"></span>\n<span class=\"line\"><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">        root.left </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">=</span><span style=\"color:#6F42C1;--shiki-dark:#B392F0\"> pruneTree</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">(root.left);</span></span>\n<span class=\"line\"><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">        root.right </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">=</span><span style=\"color:#6F42C1;--shiki-dark:#B392F0\"> pruneTree</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">(root.right);</span></span>\n<span class=\"line\"></span>\n<span class=\"line\"><span style=\"color:#D73A49;--shiki-dark:#F97583\">        if</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> (root.left </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">==</span><span style=\"color:#005CC5;--shiki-dark:#79B8FF\"> null</span><span style=\"color:#D73A49;--shiki-dark:#F97583\"> &#x26;&#x26;</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> root.right </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">==</span><span style=\"color:#005CC5;--shiki-dark:#79B8FF\"> null</span><span style=\"color:#D73A49;--shiki-dark:#F97583\"> &#x26;&#x26;</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> root.val </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">==</span><span style=\"color:#005CC5;--shiki-dark:#79B8FF\"> 0</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">) {</s
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