C++ srand()

srand() is a function in the C++ programming language that is used to seed the random number generator. The random number generator is a function that generates a sequence of pseudo-random numbers.

The srand() function takes an integer value as its parameter. This integer value is used as the seed for the random number generator. The seed value determines the starting point for the sequence of random numbers. By using different seed values, we can generate different sequences of random numbers.

When the srand() function is called with a specific seed value, it initializes the random number generator with that seed value. This means that if we call srand() with the same seed value multiple times, the random number generator will generate the same sequence of random numbers.

It is important to note that if srand() is not called before generating random numbers using functions like rand(), the random number generator will be initialized with a default seed value, usually the current time. This means that every time the program is run, a different sequence of random numbers will be generated.

To summarize, srand() is used to seed the random number generator in C++. It takes an integer value as its parameter, which determines the starting point for the sequence of random numbers. By using different seed values, we can generate different sequences of random numbers.