1publicString multiply(String num1, String num2) {2if(num1==null||num1.length()==0||num2==null||num2.length()==0){3return"";4}5intlen1 =num1.length();6intlen2 =num2.length();7int[] one =newint[len1];8int[] two =newint[len2];9for(inti=0;i<len1;i++){10one[...
Given two numbers represented as strings, return multiplication of the numbers as a string. Note: The numbers can be arbitrarily large and are non-negative. 这道题目首先我想到是不能用乘法,那就全部用加法将 然后超时 publicclassSolution {publicString multiply(String num1, String num2) {if(num1....
public String multiply(String num1, String num2) { int[] digit1 = new int[num1.length()]; int[] digit2 = new int[num2.length()]; int[] result = new int[num1.length() + num2.length() + 1]; for (int i = num1.length() - 1, j = 0; i >= 0; i--) digit1[j++]...
先看代码,再分析。 stringmultiply(string num1,string num2){if(num1=="0"||num2=="0")return"0";//start from unitreverse(num1.begin(),num1.end());reverse(num2.begin(),num2.end());intlenNum1=num1.size();intlenNum2=num2.size();vector<int>num_re(lenNum1+lenNum2,0);for(i...
Given two non-negative integers num1 and num2 represented as strings, return the product of num1 and num2, also represented as a string. 以字符串的形式给出两个非负的整数num1和num2,返回两个数的乘积,结果同样以字符串的形式表示。 Example 1: ...
3、大数乘法:Multiply Strings - LeetCode Given two non-negative integers num1 and num2 represented as strings, return the product of num1 and num2, also represented as a string. Example 1: Input: num1 = "2", num2 = "3" Output: "6" Example 2: Input: num1 = "123", num2 = "...
43. Multiply Strings # 题目 # Given two non-negative integers num1 and num2 represented as strings, return the product of num1 and num2, also represented as a string. Note: You must not use any built-in BigInteger library or convert the inputs to integ
Java Solution publicStringmultiply(Stringnum1,Stringnum2){Stringn1=newStringBuilder(num1).reverse().toString();Stringn2=newStringBuilder(num2).reverse().toString();int[]d=newint[num1.length()+num2.length()];//multiply each digit and sum at the corresponding positionsfor(inti=0;i<n1.length...
题目链接 :https://leetcode-cn.com/problems/multiply-strings/ 题目描述: 给定两个以字符串形式表示的非负整数num1和num2,返回num1和num2的乘积,它们的乘积也表示为字符串形式。 示例: 示例1: 输入: num1 = "2", num2 = "3" 输出: "6" ...
Multiply Strings 是一个 Java 题解,用于解决字符串乘法问题。这个问题要求我们实现一个函数,输入两个字符串,输出它们的乘积。 解题思路: 1. 首先,我们需要遍历第一个字符串的每个字符,将其与第二个字符串的每个字符相乘。 2. 然后,我们将结果累加到一个新的字符串中。 3. 最后,返回新字符串作为结果。 代码...