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79 lines
1.2 KiB
79 lines
1.2 KiB
5 years ago
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# listpushback
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## Instructions
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Write a function `ListMerge` that places elements of a list `l2` at the end of an other list `l1`.
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- You can't create new elements!
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- Use pointers when ever you can.
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## Expected function and structure
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```go
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type node struct {
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data interface{}
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next *node
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}
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type list struct {
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head *node
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tail *node
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}
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func ListMerge(l1 *list, l2 *list) {
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}
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```
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## Usage
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Here is a possible [program](TODO-LINK) to test your function :
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```go
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package main
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import (
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"fmt"
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piscine ".."
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)
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func PrintList(l *list) {
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m := l.head
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for m != nil {
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fmt.Print(m.data, " -> ")
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m = m.next
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}
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fmt.Print(l.tail)
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fmt.Println()
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}
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func main() {
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link := &list{}
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link2 := &list{}
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piscine.ListPushBack(link, "a")
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piscine.ListPushBack(link, "b")
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piscine.ListPushBack(link, "c")
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piscine.ListPushBack(link, "d")
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piscine.ListPushBack(link2, "e")
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piscine.ListPushBack(link2, "f")
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piscine.ListPushBack(link2, "g")
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piscine.ListPushBack(link2, "h")
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piscine.ListMerge(link, link2)
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PrintList(link)
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}
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```
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And its output :
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```console
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student@ubuntu:~/piscine/test$ go build
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student@ubuntu:~/piscine/test$ ./test
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a -> b -> c -> d -> e -> f -> g -> h -> <nil>
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student@ubuntu:~/piscine/test$
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```
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