when we make ( 1+rand()%6 ) ,why it always get 6 6 6 5 5 ?? why this numbers ?

Answer 1

rand() is random number generator .. %6 produces numbers between 0 to 5 and plus 1 will give u numbers between 1 to 6 .. ie random numbers between 1 to 6 .. simple !!

Answer 2

rand () is used to generate random numbers so each time u compile u will get different answer.

Answer 3

You have to seed your pseudorandom number generator.