Hello,ok so im studying for my exam before class tomorrow and im wondering if you could answer a couple of

Hello,

ok so im studying for my exam before class tomorrow and im wondering if you could answer a couple of

question for clarity.

the first question is

srand((unsigned)time(NULL));

dice1 = LOWERBOUND + rand() % (UPPERBOUND - LOWERBOUND + 1);

-im saying that dice1 would be equal a number between Lowerbound and upperbound including the end points.

My second question is what is the purpose of a function?

is it to have a parameters or is it more to be reused, return a value, and have a parameters?

My book and the online community is confusing me. please help