add_two_numbers
add_two_numbers.go 源码
package main
func addTwoNumbers(l1 *ListNode, l2 *ListNode) *ListNode {
dummy := &ListNode{Val: 0}
cur, p, q, count := dummy, l1, l2, 0
for p != nil || q != nil {
if p != nil {
p, count = p.Next, count+p.Val
}
if q != nil {
q, count = q.Next, count+q.Val
}
cur.Next = &ListNode{Val: count % 10}
cur, count = cur.Next, count/10
}
if count != 0 {
cur.Next = &ListNode{Val: count}
}
return dummy.Next
}
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