mirror of
				https://gitee.com/coder-xiaomo/leetcode-problemset
				synced 2025-11-04 19:53:12 +08:00 
			
		
		
		
	
		
			
				
	
	
		
			39 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
			
		
		
	
	
			39 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
<p>给定两个字符串形式的非负整数 <code>num1</code> 和<code>num2</code> ,计算它们的和并同样以字符串形式返回。</p>
 | 
						||
 | 
						||
<p>你不能使用任何內建的用于处理大整数的库(比如 <code>BigInteger</code>), 也不能直接将输入的字符串转换为整数形式。</p>
 | 
						||
 | 
						||
<p> </p>
 | 
						||
 | 
						||
<p><strong>示例 1:</strong></p>
 | 
						||
 | 
						||
<pre>
 | 
						||
<strong>输入:</strong>num1 = "11", num2 = "123"
 | 
						||
<strong>输出:</strong>"134"
 | 
						||
</pre>
 | 
						||
 | 
						||
<p><strong>示例 2:</strong></p>
 | 
						||
 | 
						||
<pre>
 | 
						||
<strong>输入:</strong>num1 = "456", num2 = "77"
 | 
						||
<strong>输出:</strong>"533"
 | 
						||
</pre>
 | 
						||
 | 
						||
<p><strong>示例 3:</strong></p>
 | 
						||
 | 
						||
<pre>
 | 
						||
<strong>输入:</strong>num1 = "0", num2 = "0"
 | 
						||
<strong>输出:</strong>"0"
 | 
						||
</pre>
 | 
						||
 | 
						||
<p> </p>
 | 
						||
 | 
						||
<p> </p>
 | 
						||
 | 
						||
<p><strong>提示:</strong></p>
 | 
						||
 | 
						||
<ul>
 | 
						||
	<li><code>1 <= num1.length, num2.length <= 10<sup>4</sup></code></li>
 | 
						||
	<li><code>num1</code> 和<code>num2</code> 都只包含数字 <code>0-9</code></li>
 | 
						||
	<li><code>num1</code> 和<code>num2</code> 都不包含任何前导零</li>
 | 
						||
</ul>
 |