Last list item: Difference between revisions

From Rosetta Code
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(Added Go)
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<br>Show the last item on this page.
<br>Show the last item on this page.
<br><br>
<br><br>

=={{header|Go}}==
{{trans|Wren}}
<lang go>package main

import (
"fmt"
"sort"
)

func main() {
a := []int{6, 81, 243, 14, 25, 49, 123, 69, 11}
for len(a) > 1 {
sort.Ints(a)
a = append(a, a[0]+a[1])
a = a[2:]
}
fmt.Println("Last item is", a[0], "\b.")
}</lang>

{{out}}
<pre>
Last item is 621.
</pre>


=={{header|Ring}}==
=={{header|Ring}}==

Revision as of 08:18, 23 October 2021

Last list item is a draft programming task. It is not yet considered ready to be promoted as a complete task, for reasons that should be found in its talk page.
Task

List = [6, 81, 243, 14, 25, 49, 123, 69, 11]
Find two smallest items, summarize them, add to the end of list and delete them.
Repeat it until list contains one element.
Show the last item on this page.

Go

Translation of: Wren

<lang go>package main

import (

   "fmt"
   "sort"

)

func main() {

   a := []int{6, 81, 243, 14, 25, 49, 123, 69, 11}
   for len(a) > 1 {
       sort.Ints(a)
       a = append(a, a[0]+a[1])
       a = a[2:]
   }
   fmt.Println("Last item is", a[0], "\b.")

}</lang>

Output:
Last item is 621.

Ring

<lang ring> see "working..." + nl see "Last item is:" + nl

List = [6,81,243,14,25,49,123,69,11] Temp = []

while true

     Temp = sort(List)
     first = Temp[1]
     second = Temp[2]
     ind1 = find(List,first)
     ind2 = find(List,second)
     del(List,ind2)
     del(List,ind1)
     sum = first + second 
     add(List,sum)
     if len(List) = 1
        exit
     ok

end

see "" + List[1] + nl see "done..." + nl </lang>

Output:
working...
Last item is:
504
done...

Wren

<lang ecmascript>var a = [6, 81, 243, 14, 25, 49, 123, 69, 11]

while (a.count > 1) {

   a.sort()
   a.add(a[0] + a[1])
   a = a[2..-1]

}

System.print("Last item is %(a[0]).")</lang>

Output:
Last item is 621.