[문제] [풀이] 1 #include 2 #include 3 #include 4 #include 5 6 unsigned char submit[6]; 7 8 void play(){ 9 10 int i; 11 printf("Submit your 6 lotto bytes : "); 12 fflush(stdout); 13 14 int r; 15 r = read(0, submit, 6); 16 17 printf("Lotto Start!\n"); 18 //sleep(1); 19 20 // generate lotto numbers 21 int fd = open("/dev/urandom", O_RDONLY); 22 if(fd==-1){ 23 printf("error. tell admin\n"); 24 exit(-1);..