LeetCode#2 Add Two Numbers
2378 ワード
public class Solution {
public ListNode addTwoNumbers(ListNode l1, ListNode l2) {
ListNode ret = new ListNode(0);
ListNode cur = ret;
int sum = 0;
while(true) {
if(l1 != null) {
sum += l1.val;
l1 = l1.next;
}
if(l2 != null) {
sum += l2.val;
l2 = l2.next;
}
cur.val = sum % 10;
sum /= 10;
if(l1 != null || l2 != null || sum != 0) {
//cur = (cur.next = new ListNode(0));
cur.next = new ListNode(0);
cur = cur.next;
} else {
break;
}
}
return ret;
}
}
牛が書いたのは簡潔だ