Last list item: Difference between revisions
Added Sidef
(Added Sidef) |
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Last item is: 621
done...
</pre>
==={{header|Sidef}}==
===With sorting===
<lang ruby>var k = 2
var list = [6, 81, 243, 14, 25, 49, 123, 69, 11]
while (list.len >= k) {
var a = list.sort!.shift(k)
list << a.sum
say "#{a.map{'%3s' % _}.join(' ')} : #{list}"
}</lang>
{{out}}
<pre>
6 11 : [14, 25, 49, 69, 81, 123, 243, 17]
14 17 : [25, 49, 69, 81, 123, 243, 31]
25 31 : [49, 69, 81, 123, 243, 56]
49 56 : [69, 81, 123, 243, 105]
69 81 : [105, 123, 243, 150]
105 123 : [150, 243, 228]
150 228 : [243, 378]
243 378 : [621]
</pre>
===Without sorting===
<lang ruby>var k = 2
var list = [6, 81, 243, 14, 25, 49, 123, 69, 11]
while (list.len >= k) {
var a = gather {
k.times {
take(var v = list.min)
list.delete_first(v)
}
}
list << a.sum
say "#{a.map{'%3s' % _}.join(' ')} : #{list}"
}</lang>
{{out}}
<pre>
6 11 : [81, 243, 14, 25, 49, 123, 69, 17]
14 17 : [81, 243, 25, 49, 123, 69, 31]
25 31 : [81, 243, 49, 123, 69, 56]
49 56 : [81, 243, 123, 69, 105]
69 81 : [243, 123, 105, 150]
105 123 : [243, 150, 228]
150 228 : [243, 378]
243 378 : [621]
</pre>
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