简介
简单, 因为感觉C++ 代码写的比较好, 遂放在博客中.
code
class Solution {
public:
ListNode* addTwoNumbers(ListNode* l1, ListNode* l2) {
ListNode * r = new ListNode(0);
ListNode * q = r;
int putIn = 0;
while(l1 != nullptr || l2 != nullptr || putIn > 0) {
int a1 = l1 != nullptr ? l1->val : 0;
int a2 = l2 != nullptr ? l2->val : 0;
l1 = l1 != nullptr ? l1->next : nullptr;
l2 = l2 != nullptr ? l2->next : nullptr;
int tmp = a1 + a2 + putIn;
putIn = tmp / 10;
tmp = tmp % 10;
ListNode *a = new ListNode(tmp);
q->next = a;
q = q->next;
}
return r->next;
}
};