/* struct ListNode { int val; struct ListNode *next; ListNode(int x) : val(x), next(NULL) { } };*/ class Solution { public: ListNode* FindFirstCommonNode( ListNode* pHead1, ListNode* pHead2) { if(pHead1==pHead2) return pHead1; ListNode* temp1 = pHead1, *temp2 = pHead2, *pmax, *pmin, *temp3, *temp4; ...