11 What is the BigO running time for this code Explain your

 11. What is the Big-O running time for this code?  Explain your answer.       int i = numItems;      while (i > 0)         i = i / 2;     // integer division will eventually reach zero   12. What is the Big-O running time for this code?  Explain your answer.           public static int div(int numItems)      {         if (numItems == 0)            return 0;         else            return numItems%2 + div(numItems/2);      }