Q. What is the code for picking a random number from fifty numbers and that fifty number set have 8 sets

• #include
  #include
  #include
  int main()
  {
  int x;
  srand(time(NULL));
  x=rand()%51;
  printf("%d",x);
  }
  rand() fumction is used to pick a random number and this no. is not same for every time
  
• 11 years agoHelpfull: Yes(0) No(1)
• what is the meanining of this line?
  srand(time(NULL));
  
• 11 years agoHelpfull: Yes(0) No(0)
• srand(time(NULL)); It seeds the random number generator with the current system time.
  The NULL means that the value (the time in seconds) isn't stored anywhere.
• 10 years agoHelpfull: Yes(0) No(0)
• srand(any fixed value means..1,2,3....or any value).
  i.e.
  while(1)
  {
  srand(5);
  r=rand()&51;
  pf("%dn",r);
  }
  it means that infinite loop right, so each time it gives same value inbetween 1-50.
  But
  if u take srand(time(1)); every one second value will be change between 1-50.
  
  u can take srand(getpid()); means every execution of ur program value will be change.
  getpid()--> process id.
  
• 10 years agoHelpfull: Yes(0) No(0)