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			33 lines
		
	
	
		
			849 B
		
	
	
	
		
			HTML
		
	
	
	
	
	
			
		
		
	
	
			33 lines
		
	
	
		
			849 B
		
	
	
	
		
			HTML
		
	
	
	
	
	
<p>给定两个字符串 <code>s</code> 和 <code>t</code> ,它们只包含小写字母。</p>
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<p>字符串 <code>t</code> 由字符串 <code>s</code> 随机重排,然后在随机位置添加一个字母。</p>
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<p>请找出在 <code>t</code> 中被添加的字母。</p>
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<p> </p>
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<p><strong>示例 1:</strong></p>
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<pre>
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<strong>输入:</strong>s = "abcd", t = "abcde"
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<strong>输出:</strong>"e"
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<strong>解释:</strong>'e' 是那个被添加的字母。
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</pre>
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<p><strong>示例 2:</strong></p>
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<pre>
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<strong>输入:</strong>s = "", t = "y"
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<strong>输出:</strong>"y"
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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><code>0 <= s.length <= 1000</code></li>
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	<li><code>t.length == s.length + 1</code></li>
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	<li><code>s</code> 和 <code>t</code> 只包含小写字母</li>
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</ul>
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