multiplication modulo 5

Note: This is just my personal understanding. It may be incorrect. For integers A and N, the modulo n operation is to calculate the remainder of a divided by N. If a = 10, n = 3, the quotient of a divided by N is 3, and the remainder is 1. C

[Java Basics] 14. bitwise operations-bitwise AND (&) operations-(fast modulo algorithm) and java Basics 14 Operations The redis dictionary structure is learned. The hash Value & sizemask operation is used when the hash is used to find the index

The fast power algorithm can be said to be a kind of ACM competition is necessary, and is also a very basic type of algorithm, given that I have been learning more fragmented, so today with this post summed upFast multiplication usually has two

I. Problem description: Calculate (a ^ power) % m, where power is a non-negative big integer, A, M is an integer greater than 1. Ii. Problem Analysis: Obviously, power is a big integer, so the overflow of Power computing must be considered. How can

Before we begin, we introduce the 3 theorems:1. Multiplication inverse (also called the reciprocal in Wikipedia, of course, after mod p, is actually the countdown is not it?) ）:If Ax≡1 (mod p), and GCD (a,p) =1 (A and P coprime), then a

  It seems that there is no summary of this topic. I have seen four people who have asked such questions in a row over the past few days. I will briefly write them here today. Here we will not introduce other matrix-related knowledge, but will

It seems that there is no summary of this topic. I have seen four people who have asked such questions in a row over the past few days. I will briefly write them here today. Here we will not introduce other matrix-related knowledge, but will only

If X exists in numbers A and C and A * x = 1 (mod C), X is called the multiplication inverse element of A to C.What is the role of reverse element? Let's take a look at the following example:12/4 mod 7 =? Obviously, the result is 3.For the number

[ACM] hdu 3037 Saving Beans (Lucas theorem, modulo of composite number) Saving Beans Problem DescriptionAlthough winter is far away, squirrels have to work day and night to save beans. they need plenty of food to get through those long cold days.

It is widely used in cryptography and security fields. Including the well-known Euclidean Algorithm for the most common factor. This article describes how to calculate the inverse element of multiplication in a finite field. Including integers and