72 lines
996 B
Go
72 lines
996 B
Go
package main
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import "fmt"
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type ListNode struct {
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Val int
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Next *ListNode
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}
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func main() {
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}
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func mergeTwoLists(list1 *ListNode, list2 *ListNode) *ListNode {
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upP := list1
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dnP := list2
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firstNode := (*ListNode)(nil)
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value := 0
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Ponit := (*ListNode)(nil)
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if list1 == nil {
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if list2 == nil {
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return nil
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}
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return list2
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}
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if list2 == nil {
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return list1
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}
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for upP != nil || dnP != nil {
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tmpP := &ListNode{}
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if upP == nil {
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tmpP.Val = dnP.Val
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Ponit.Next = tmpP
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dnP = dnP.Next
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Ponit = Ponit.Next
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fmt.Println("停留1")
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continue
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}
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if dnP == nil {
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tmpP.Val = upP.Val
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Ponit.Next = tmpP
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upP = upP.Next
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Ponit = Ponit.Next
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fmt.Println("停留2")
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continue
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}
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if upP.Val >= dnP.Val {
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tmpP.Val = dnP.Val
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dnP = dnP.Next
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} else {
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tmpP.Val = upP.Val
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upP = upP.Next
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}
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if value == 0 {
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Ponit = tmpP
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firstNode = Ponit
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value++
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continue
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}
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Ponit.Next = tmpP
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Ponit = Ponit.Next
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value++
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}
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return firstNode
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}
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