What is Rand() in C++?
rand() function is an inbuilt function in C++ STL, which is defined in header file <cstdlib>. rand() is used to generate a series of random numbers. The random number is generated by using an algorithm that gives a series of non-related numbers whenever this function is called.
The rand() function is used in C++ to generate random numbers in the range [0, RAND_MAX).RAND_MAX: It is a constant whose default value may vary between implementations but it is granted to be at least 32767.
Why Rand() function Always give the Same Value ?
Have you ever wondered why the rand() function always gives the same values each time we compile and run our code? well in this post we are going to discuss this phenomenon in brief.
First, let us discuss what is rand() function and what is its property.