When can we use the rand() function and how ?!

Answer 1

@Zeke Williams
well explaination.

Answer 2

to generate random number of cause ......😶

Answer 3

First, make sure you include a couple of things:

#include <cstdlib> // this is for rand() and srand()
#include <ctime> // this is for time()

Then, in main you will need to set the seed for the rand function before calling rand();

int main() {
srand(time(NULL));

int rand0to9 = rand() % 10; // here I've called it to give me a random int 0 to 9

return 0;
}

Answer 4

thnx @zeke_williams