Given two binary strings, return their sum (also a binary string). For example, a = "11" b = "1" Return "100". 思路:二进制加法,比較简单.代码例如以下: public class Solution { public String addBinary(String a, String b) { int len = Math.max(a.l…
[067-Add Binary(二进制加法)] [LeetCode-面试算法经典-Java实现][全部题目文件夹索引] 原题 Given two binary strings, return their sum (also a binary string). For example, a = "11" b = "1" Return "100" 题目大意 给定两个二进制的字符串,返回它们的和,也是二进行制字符串. 解题思路 先将相应的两个二进制字符…
python对二进制文件的操作需要使用bytes类,直接写入整数是不行的,如果试图使用f.write(123)向文件中以二进制写入123,结果提示参数不是bytes类型. import os import struct a = 0x1A2B3C4D b = 0x239875ad3d5ffaaa filepath = 'D:\\wygDocument\\python\\code\\abc.dat' f_in = open(filepath,'wb+') for value in range(1,5…
闲来无事,搜集一些有趣的面试题,以及解决方案,有些代码可能会自己写, 有些网上有比较完整的方案了,就直接把代码拷贝过来,描述一下解题思路. Given two binary strings, return their sum (also a binary string).For example,a = "11"b = "1"Return "100". 这个问题比较简单,跟普通加法其实差不多,需要考虑的是进位,加法的话需要从低位开始 往高位加,这样…
Given two binary strings, return their sum (also a binary string).The input strings are both non-empty and contains only characters 1 or 0. Example 1: Input: a = "11", b = "1" Output: "100" Example 2: Input: a = "1010&qu…
二进制数转换成十进制数:二进制数从右向左每位数乘以2的次方(从0开始,从右向左依次+1),然后相加求和即可 如:0101转成十进制为:1*20+0*21+1*22+0*23 =1+0+4+0=5 算法实现: #coding=utf-8b=raw_input("请输入一个二进制数:".decode("utf-8").encode("gbk"))sum=0for i in range(len(b)): sum+=int(b[len(b)-1-i…
Given two binary strings, return their sum (also a binary string). For example,a ="11"b ="1"Return"100". 题意:将两个以字符串形式保存的二进制数进行相加. 思路:其实不管是以数组.字符串形式,加或者乘(multiply strings),一般的思路都是从后往前计算,用一个中间变量保存相加或者相乘的结果(加法是一个变量int 或string就行,…
Given two binary strings, return their sum (also a binary string). The input strings are both non-empty and contains only characters 1 or 0. Example 1: Input: a = "11", b = "1" Output: "100" Example 2: Input: a = "1010&q…
"""思路:1.a * b = a + a + a + ... 2.a * b = n个a相加,只需求证b = n即可 3.用for 循环遍历即可,b就是range的最大次数 4.需考虑a,b有五种情况存在,但结果会有三种,正数,0,负数""" def multiplication(a,b): if a > 0 and b > 0: sum = 0 for i in range(b): sum += a print(sum) elif…
https://ac.nowcoder.com/acm/contest/338/G 链接:https://ac.nowcoder.com/acm/contest/338/G来源:牛客网 题目描述 This is a very simple problem! Your only job is to calculate a + b + c + d! 输入描述: There are several cases. In the first line, there is a single integer…