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- /**
- knakul853
- */
- class Solution {
- public:
- ListNode* mergeTwoLists(ListNode* l1, ListNode* l2) {
- ListNode* root = new ListNode();
- ListNode*temp = root;
- while(l1 && l2)
- {
- if(l1->val > l2->val)
- {
- root->next = new ListNode(l2->val);
- root=root->next;
- l2 = l2->next;
- }
- else
- {
- root->next = new ListNode(l1->val);
- l1 = l1->next;
- root=root->next;
- }
- }
- root->next = l1 ? l1 : l2;
- return temp->next;
- }
- };
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