67.add-binary

Statement

简体中文English

Metadata

• Link: 二进制求和
• Difficulty: Easy
• Tag: 位运算 数学 字符串 模拟

给你两个二进制字符串，返回它们的和（用二进制表示）。

输入为 非空 字符串且只包含数字 1 和 0。

 

示例 1:

输入: a = "11", b = "1"
输出: "100"

示例 2:

输入: a = "1010", b = "1011"
输出: "10101"

 

提示：

• 每个字符串仅由字符 '0' 或 '1' 组成。
• 1 <= a.length, b.length <= 10^4
• 字符串如果不是 "0" ，就都不含前导零。

Metadata

• Link: Add Binary
• Difficulty: Easy
• Tag: Bit Manipulation Math String Simulation

Given two binary strings a and b, return their sum as a binary string.

 

Example 1:

Input: a = "11", b = "1"
Output: "100"

Example 2:

Input: a = "1010", b = "1011"
Output: "10101"

 

Constraints:

• 1 <= a.length, b.length <= 104
• a and b consist only of '0' or '1' characters.
• Each string does not contain leading zeros except for the zero itself.

Solution

Python 3

class Solution:
    def addBinary(self, a: str, b: str) -> str:
        return '{0:b}'.format(int(a, 2) + int(b, 2))

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最后更新: October 11, 2023