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Dec 8th, 2016
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  1. public void reverseI() {
  2. ListNode e1 = this.head;
  3. ListNode e2 = this.head.getNext();
  4. ListNode e3 = this.head.getNext().getNext();
  5. while (e3.getNext() != null) {
  6. e2.next = e1;
  7. e1 = e2;
  8. e2 = e3;
  9. e3 = e3.getNext();
  10. }
  11. e2.next = e1;
  12. e3.next = e2;
  13. this.head.next = null;
  14. this.head = e3;
  15. }
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