Karatsuba for multiplying large numbers which can be used to improve the performance of multiplying numbers with a large number of digits (such as BigInteger). Essentially, the technique is as follows: break the multiplication of two numbers down into the multiplication of four constituent numbers;...
classSolution {public:stringcomplexNumberMultiply(stringa,stringb) {intn1 = a.size(), n2 =b.size(); auto p1= a.find_last_of("+"), p2 = b.find_last_of("+");inta1 = stoi(a.substr(0, p1)), b1 = stoi(b.substr(0, p2));inta2 = stoi(a.substr(p1 +1, n1 - p1 -2));...
The input strings will not have extra blank. The input strings will be given in the form of a+bi, where the integer a and b will both belong to the range of [-100, 100]. And the output should be also in this form. 题意:给定两个用字符串表示的复数,计算复数乘积; 解法:要计算出两...
Binary numbersare a numerical representation in the base-2 numeral system, also known as the binary numeral system. This system uses only two symbols, usually "0" and "1", to represent natural numbers. Each digit in a binary number is called a bit, representing an increasing power of 2, ...
In this post, we will see how to do matrix multiplication in C. If we want to multiply two matrices, then number of columns in first matrix must be equal to number of rows in second matrix. If this condition is not satisfied, below program will give you an error message. ...
AC Java: 1classSolution {2publicString complexNumberMultiply(String a, String b) {3String [] aArr = a.split("\\+|i");4String [] bArr = b.split("\\+|i");5intaReal = Integer.valueOf(aArr[0]);6intaImag = Integer.valueOf(aArr[1]);7intbReal = Integer.valueOf(bArr[0]);8...
public:stringcomplexNumberMultiply(stringa,stringb) {intn1 = a.size(), n2 =b.size(); auto p1= a.find_last_of("+"), p2 = b.find_last_of("+");inta1 = stoi(a.substr(0, p1)), b1 = stoi(b.substr(0, p2));inta2 = stoi(a.substr(p1 +1, n1 - p1 -2));intb2 = stoi...
复数乘法 | Complex Number Multiplication Given two strings representing two complex numbers. You need to return a string representing their m ... [LeetCode] Sparse Matrix Multiplication 稀疏矩阵相乘 Given two sparse matrices A and B, return the result of AB. You may assume that A's column...
537. Complex Number Multiplication 1、题目 Given two strings representing two complex numbers. You need to return a string representing their multiplication. Note i2 = -1 according to the definition. Example 1: Input: "1+1i", "1+1i" Output: "0+2i" Explanation: (1 + i) * (1 + i...
537. Complex Number Multiplication Given two strings representing two complex numbers. You need to return a string representing their multiplication. Note i2 = -1 according to the definition. Example 1: Input: "1+1i", "1+1i" Output: "0+2i"...