add-binary

java

python

python3

mysql

mssql

oraclesql

csharp

javascript

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bash

swift

kotlin

dart

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cangjie

Algorithms

Given two binary strings <code>a</code> and <code>b</code>, return their sum as a binary string.

&nbsp;
Example 1:
<pre>Input: a = "11", b = "1"
Output: "100"
</pre>Example 2:
<pre>Input: a = "1010", b = "1011"
Output: "10101"
</pre>
&nbsp;
Constraints:

<ul>
	<li><code>1 &lt;= a.length, b.length &lt;= 104</code></li>
	<li><code>a</code> and <code>b</code> consist&nbsp;only of <code>&#39;0&#39;</code> or <code>&#39;1&#39;</code> characters.</li>
	<li>Each string does not contain leading zeros except for the zero itself.</li>
</ul>

addBinary

Add Binary

Add Two Numbers

add-two-numbers

两数相加

Multiply Strings

multiply-strings

字符串相乘

Plus One

plus-one

加一

Add to Array-Form of Integer

add-to-array-form-of-integer

数组形式的整数加法

Bit Manipulation

Math

String

Simulation

给你两个二进制字符串 <code>a</code> 和 <code>b</code> ，以二进制字符串的形式返回它们的和。

&nbsp;

示例&nbsp;1：

<pre>
输入:a = "11", b = "1"
输出："100"</pre>

示例&nbsp;2：

<pre>
输入：a = "1010", b = "1011"
输出："10101"</pre>

&nbsp;

提示：

<ul>
	<li><code>1 &lt;= a.length, b.length &lt;= 104</code></li>
	<li><code>a</code> 和 <code>b</code> 仅由字符 <code>'0'</code> 或 <code>'1'</code> 组成</li>
	<li>字符串如果不是 <code>"0"</code> ，就不含前导零</li>
</ul>