/*
struct ListNode {
int val;
struct ListNode *next;
ListNode(int x) :
val(x), next(NULL) {
}
};*/
class Solution {
public:
ListNode* Merge(ListNode* pHead1, ListNode* pHead2) {
ListNode* dummy = new ListNode(0);
ListNode* cur = dummy;
while(pHead1 && pHead2){
if(pHead1->val > pHead2->val){
cur->next = pHead2;
pHead2 = pHead2->next;
} else{
cur->next = pHead1;
pHead1 = pHead1->next;
}
cur = cur->next;
}
if(pHead1) cur->next = pHead1;
if(pHead2) cur->next = pHead2;
return dummy->next;
}
};

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