/* struct ListNode { int val; struct ListNode *next; ListNode(int x) : val(x), next(NULL) { } };*/ class Solution { public: ListNode* FindFirstCommonNode( ListNode* pHead1, ListNode* pHead2) { int l1 = 0, l2 = 0; ListNode* temp1 = pHead1, *temp2 = pHead2; while (temp1 || temp2) { ...