c++ rand()

The rand() function in C++ is used to generate a pseudo-random number. Here's an explanation for each step:

1. Include the <cstdlib> header file to use the rand() function.
2. Call the srand() function to seed the random number generator with a value. This is typically done using srand(time(0)) to seed the generator with the current time.
3. Use the rand() function to generate a random number within the range of 0 to RAND_MAX, which is a constant defined in the <cstdlib> header file.
4. If you need a random number within a specific range, you can use the modulo operator to limit the range of the generated numbers, for example, rand() % 100 to generate a random number between 0 and 99.

These steps allow you to generate random numbers in your C++ program using the rand() function.