[[XST]O_x]

pawn Код:

new oldInt[2] = {-1, ...};

GetFreeInt()
{
    for(new i = 0; i < sizeof oldInt; i++)
    {
        if(oldInt[i] == -1) return i;
    }
    return 0; //Start overwriting the array
}

stock randomEx(min, max)
{
    new ints;
    new s = GetFreeInt();
    do {
        ints = Randomize(min, max+1);
    }
    while(ints == oldInt[s] && ints == oldInt[s-1]);
    printf("%d", ints);
    oldInt[s] = ints;
    return oldInt[s];
}

CMD:ur(playerid, params[])
{
    SendClientMessageEx(playerid, 0xFF0000AA, "Random Number: %d", randomEx(1, 299));
    return 1;
}

I don't have any better idea.