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merge two sorted Linked list
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| function mergeLists(head1, head2) { | |
| var result = new SinglyLinkedListNode(); | |
| // case1 | |
| if(head1==null){ | |
| return head2; | |
| }else if(head2==null){ | |
| return head1; | |
| } | |
| //case 2 | |
| if(head1.data <= head2.data){ | |
| result = head1; | |
| result.next = mergeLists(head1.next,head2) | |
| }else{ | |
| result = head2; | |
| result.next = mergeLists(head1, head2.next) | |
| } | |
| return result; | |
| } |
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merge two sorted Linked list