Originally Posted by Ancient Dragon

what is "CHR/2" ? If you need 8 random numbers between the values of 0 and 16, then put them in an array.

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start loop
    generate random number between 0 and 16
    first time the number has been generated ?
    no, then go back and generate another number
    yes, add to an array of generated numbers
    if 8 numbers have been generated than exit loop
end of loop

start loop generate random number between 0 and 16 first time the number has been generated ? no, then go back and generate another number yes, add to an array of generated numbers if 8 numbers have been generated than exit loop end of loop

to generate a number between 0 and 15 int x = rand() % 16