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			28 lines
		
	
	
		
			775 B
		
	
	
	
		
			HTML
		
	
	
	
	
	
			
		
		
	
	
			28 lines
		
	
	
		
			775 B
		
	
	
	
		
			HTML
		
	
	
	
	
	
<p>给定一棵二叉树的根节点 <code>root</code>,请左右翻转这棵二叉树,并返回其根节点。</p>
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<p> </p>
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<p><strong>示例 1:</strong></p>
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<p><img alt="" src="https://pic.leetcode.cn/1694686821-qlvjod-%E7%BF%BB%E8%BD%AC%E4%BA%8C%E5%8F%89%E6%A0%91.png" /></p>
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<pre>
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<strong>输入:</strong>root = [5,7,9,8,3,2,4]
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<strong>输出:</strong>[5,9,7,4,2,3,8]
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</pre>
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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>树中节点数目范围在 <code>[0, 100]</code> 内</li>
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	<li><code>-100 <= Node.val <= 100</code></li>
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</ul>
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<p> </p>
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<p>注意:本题与主站 226 题相同:<a href="https://leetcode-cn.com/problems/invert-binary-tree/">https://leetcode-cn.com/problems/invert-binary-tree/</a></p>
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<p> </p>
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