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1.5 KiB
1.5 KiB
sortlinkedlist
WARNING! VERY IMPORTANT!
For this exercise a function will be tested with the exam own main. However the student still needs to submit a structured program:
This means that:
- The package needs to be named
package main
. - The submitted code needs one declared function main(
func main()
) even if empty. - The function main declared needs to also pass the
Restrictions Checker
(illegal functions tester). It is advised for the student to just empty the function main after its own testings are done. - Every other rules are obviously the same than for a
program
.
Instructions
You are given a linked list, where each node contains a single digit. Write a function that sorts the list in descending order and return pointer/reference to new linked list
Expected function and struct
package piscine
type NodeAddL struct {
Next *NodeAddL
Num int
}
func Sortll(node *NodeAddL) *NodeAddL {
}
Usage
Here is a possible program to test your function:
package main
import (
"fmt"
piscine ".."
)
// I implemented pushBack for this
func main() {
num1 := &piscine.NodeAddL{Num: 5}
num1 = pushBack(num1, 1)
num1 = pushBack(num1, 3)
num1 = pushBack(num1, 1)
num1 = pushBack(num1, 3)
result := piscine.Sortll(num1)
for tmp := result; tmp != nil; tmp = tmp.Next {
fmt.Print(tmp.Num)
if tmp.Next != nil {
fmt.Print(" -> ")
}
}
fmt.Println()
}
Its output:
$> go build
$> ./main
5 -> 3 -> 3 -> 1 -> 1