struct ListNode {
int val;
struct ListNode *next;
ListNode(int x) :
val(x), next(NULL) {
}
};*/
class Solution {
public:
ListNode* FindFirstCommonNode( ListNode* pHead1, ListNode* pHead2) {
ListNode *p1=pHead1;
ListNode *p2=pHead2;
//拼接两个链表
while(p1!=p2){
if(p1!=NULL){
p1=p1->next;
}
else{
p1=pHead2;
}
if(p2!=NULL){
p2=p2->next;
}
else{
p2=pHead1;
}
}
return p1;
}
};