（链表）10-相交链表

/*
public class ListNode {
    int val;
    ListNode next = null;

    ListNode(int val) {
        this.val = val;
    }
}*/
public class Solution {
    public ListNode FindFirstCommonNode(ListNode pHead1, ListNode pHead2) {
        ListNode temp1 = pHead1;
        ListNode temp2 = pHead2;
        while(temp1 != temp2) {
            temp1 = (temp1 == null) ? pHead2 : temp1.next;
            temp2 = (temp2 == null) ? pHead1 : temp2.next;
        }
        return temp1;
    }
}