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			24 lines
		
	
	
		
			776 B
		
	
	
	
		
			HTML
		
	
	
	
	
	
			
		
		
	
	
			24 lines
		
	
	
		
			776 B
		
	
	
	
		
			HTML
		
	
	
	
	
	
Given the <code>root</code> of a binary tree, return <em>the sum of values of its deepest leaves</em>.
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<p> </p>
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<p><strong class="example">Example 1:</strong></p>
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<img alt="" src="https://assets.leetcode.com/uploads/2019/07/31/1483_ex1.png" style="width: 273px; height: 265px;" />
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<pre>
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<strong>Input:</strong> root = [1,2,3,4,5,null,6,7,null,null,null,null,8]
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<strong>Output:</strong> 15
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</pre>
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<p><strong class="example">Example 2:</strong></p>
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<pre>
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<strong>Input:</strong> root = [6,7,8,2,7,1,3,9,null,1,4,null,null,null,5]
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<strong>Output:</strong> 19
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</pre>
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<p> </p>
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<p><strong>Constraints:</strong></p>
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<ul>
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	<li>The number of nodes in the tree is in the range <code>[1, 10<sup>4</sup>]</code>.</li>
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	<li><code>1 <= Node.val <= 100</code></li>
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</ul>
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