zoukankan      html  css  js  c++  java
  • leetcode reverse bits python

    Reverse Bits

    Reverse bits of a given 32 bits unsigned integer.

    For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represented in binary as00111001011110000010100101000000).

    Follow up:
    If this function is called many times, how would you optimize it?

    python代码:

    from string import atoi
    class Solution:
    # @param n, an integer
    # @return an integer
         def reverseBits(self, n):
              n_str=bin(n)[2:].zfill(32)[-1::-1]    #利用bin内建函数将n转换为二进制字符串,利用切片删掉前缀0b,并将其扩充至32位,然后在反转
              n_int=string.atoi(n_str,2)       #将翻转后的二进制字符串转换为整形
              return n_int

  • 相关阅读:
    SQL 代码片段
    SQL
    Python List
    python_enumerate用法
    HashMap记录
    Brute Force(暴力算法)
    python解析html文件,提取标签中一个元素
    每五分钟统计一次数据
    grep
    expect
  • 原文地址:https://www.cnblogs.com/bthl/p/4557075.html
Copyright © 2011-2022 走看看