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Josephus Problem: Build the Circular Linked List

Josephus Problem: Build the Circular Linked List. public class Josephus { private static class Node { int val ; Node next ; } public static void main ( String [] args ) { int M = Integer . parseInt ( args [ 0 ]); int N = Integer . parseInt ( args [ 1 ]);

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Josephus Problem: Build the Circular Linked List

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  1. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } null 0 head

  2. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } null 1 head

  3. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } 1 head

  4. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } 1 tail head

  5. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } 1 tail head

  6. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } x 0 null 1 tail head

  7. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } x 2 null 1 tail head

  8. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } x 2 1 tail head

  9. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } x 2 1 tail head

  10. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } x 2 1 tail head

  11. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } x 2 1 tail head

  12. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } x 2 0 1 tail null head

  13. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } x 2 3 1 tail null head

  14. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } x 2 3 1 tail head

  15. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } x 2 3 1 tail head

  16. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } x 2 3 1 tail head

  17. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } x 2 3 1 tail head

  18. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } 2 x 3 1 tail 0 head null

  19. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } 2 x 3 1 tail 4 head null

  20. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } 2 x 3 1 tail 4 head

  21. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } 2 x 3 1 tail 4 head

  22. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } 2 x 3 1 tail 4 head

  23. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } 2 3 1 4 head tail 5

  24. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } 2 3 1 4 head tail 5 6

  25. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } 2 3 1 4 head tail 5 6 7

  26. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } 2 3 1 4 head tail 5 8 6 7

  27. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } 2 3 1 4 head 9 tail 5 8 6 7

  28. Josephus Problem: Build the Circular Linked List publicclass Josephus { privatestaticclass Node { int val; Node next; } publicstaticvoidmain(String[] args){ int M = Integer.parseInt(args[0]); int N = Integer.parseInt(args[1]); Node head =newNode(); head.val =1; head.next = head; Node tail = head; for(int i =2; i <= N; i++){ Node x =newNode(); x.val = i; x.next = head; tail.next = x; tail = x; } 2 3 1 4 head 9 tail 5 8 6 7 Done Building

  29. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 9 5 8 6 7 % java Josephus 5 9

  30. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 5 8 6 7 % java Josephus 5 9

  31. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 5 8 6 7 % java Josephus 5 9

  32. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 5 8 6 7 % java Josephus 5 9

  33. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 5 8 6 7 % java Josephus 5 9

  34. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 5 8 6 7 % java Josephus 5 9

  35. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 5 8 6 7 % java Josephus 5 9

  36. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 5 8 6 7 % java Josephus 5 9

  37. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 5 8 6 7 % java Josephus 5 9

  38. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 5 8 6 7 % java Josephus 5 9

  39. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 5 8 6 7 % java Josephus 5 9

  40. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 5 8 6 7 % java Josephus 5 9

  41. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 5 8 6 7 % java Josephus 5 9 5

  42. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 5 is effectively deleted 5 8 6 7 % java Josephus 5 9 5

  43. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 8 6 7 % java Josephus 5 9 5

  44. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 8 6 7 % java Josephus 5 9 5

  45. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 8 6 7 % java Josephus 5 9 5

  46. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 8 6 7 % java Josephus 5 9 5

  47. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 8 6 7 % java Josephus 5 9 5

  48. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 8 6 7 % java Josephus 5 9 5

  49. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 8 6 7 % java Josephus 5 9 5

  50. Josephus Problem: Kill Off Every Mth Person Node x = tail; while(x != x.next){ for(int i =1; i < M; i++) x = x.next; System.out.print(x.next.val +" "); x.next = x.next.next; } System.out.println(x.val); 2 3 1 4 x 9 8 6 7 % java Josephus 5 9 5

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