RandomThe random class in Java generates a pseudo-random number, uses the seed of 48-bit, and then calls a linear congruential formula linear congruence equation (Donald Knuth's programming Art of 3.2.1)If two random instances use the same seed, and
In the previous blog, we learned about the real random number generator based on physical phenomena, however, the real random number generation is slow, for the actual computation needs, the random number in the computer is generated by the program
1. Question
Given a random number generator, this generator can generate a random number ranging from 1 to 5 () evenly. How can we use this generator to generate a number ranging from 1 to 7?
2. Ideas
Method 1: generate two (1, 5) random numbers.
Method One: Generate two (1,5) random number, this is a total of 25 cases, note that the two numbers are in order, from the 25 cases, take the first 21, each three kinds of representative (1,7) A number, if you take the case of the 21, discard the
RandomReproduced content, there are changes, thanks to the original author ()The random class in Java generates a pseudo-random number, uses the seed of 48-bit, and then calls a linear congruential formula linear congruence equation (Donald Knuth's
In daily life, random numbers are often used. They want to drop dice, capture dice, and draw lots. It's easy to implement. So we are doingProgramIt's really not easy to design a random number through your own program. Currently, many operating
7 methods for generating random numbers in shell instancesI. Problems
A random number is sometimes used in Shell, and the method for generating the random number is summarized here. Computers generate only pseudo-random numbers and do not generate
This article mainly introduces the three methods of obtaining and generating random numbers in C #, this article explains the random class generation method, the Guid class generation method and the RNGCryptoServiceProvider class generation method,
An APP requires that a globally unique number be generated (similar to a QQ number), but leave a good number in advance or determine whether the number to be obtained is a good number when the user registers... How can this be done? For example,
A random number is defined as: All the numbers produced have no relation.Random numbers are used in many places in real-world applications, such as the need to generate unique order numbers.There are three ways to get a random number in C #:A.
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