Collect and sort square numbers in ascending order from three lists
- Task
Add and sort square numbers in ascending order from three lists.
list[1] = [3,4,34,25,9,12,36,56,36]
list[2] = [2,8,81,169,34,55,76,49,7]
list[3] = [75,121,75,144,35,16,46,35]
11l
<lang 11l>V lists = [[3, 4, 34, 25, 9, 12, 36, 56, 36], [2, 8, 81, 169, 34, 55, 76, 49, 7], [75, 121, 75, 144, 35, 16, 46, 35]] [Int] squares
F is_square(x)
R Int(sqrt(x)) ^ 2 == x
L(l) lists
L(x) l I is_square(x) squares.append(x)
squares.sort() print(squares)</lang>
- Output:
[4, 9, 16, 25, 36, 36, 49, 81, 121, 144, 169]
FreeBASIC
<lang freebasic>function issquare( n as integer ) as boolean
if int(sqr(n))^2=n then return true else return false
end function
dim as integer i, j, nums(1 to 3, 1 to 9) = {{3,4,34,25,9,12,36,56,36},_
{2,8,81,169,34,55,76,49,7}, {75,121,75,144,35,16,46,35,-1}}, c, d, ii, jj 'pad the last list to make it the same length
redim as integer squares(-1) 'we don't know beforehand how many squares we'll find, so set up a placeholder
while true 'keep going while there are still squares in the lists
c = 99999 'sentinel value for i = 1 to 3 'loop through lists for j = 1 to 9 d = nums(i, j) if issquare(d) then 'have we found a square? if d < c then 'is it the smallest so far? c = d ii = i jj = j end if end if next j next i if c = 99999 then exit while 'if we didn't find a square, stop looking redim preserve squares(0 to ubound(squares)+1) 'update our list squares(ubound(squares)) = c nums(ii,jj) = 13 'mod the original lists so we don't find that same square again
wend
for i = 0 to ubound(squares) 'output data
print squares(i);" ";
next i</lang>
- Output:
4 9 16 25 36 36 49 81 121 144 169
jq
Works with gojq, the Go implementation of jq
<lang jq>def isSquare: sqrt | (. == floor);</lang>
The Task <lang>def lists: [
[3,4,34,25,9,12,36,56,36], [2,8,81,169,34,55,76,49,7], [75,121,75,144,35,16,46,35]
];
[lists[][]] | unique | map(select(isSquare))</lang>
- Output:
[4,9,16,25,36,49,81,121,144,169]
Julia
vcat is list "addition" in Julia. <lang julia>lists = [
[3,4,34,25,9,12,36,56,36], [2,8,81,169,34,55,76,49,7], [75,121,75,144,35,16,46,35]
]
squares = reduce(vcat, [[s for s in list if isqrt(s)^2 == s] for list in lists]) sort!(squares) println(squares) </lang>
Perl
<lang perl>#!/usr/bin/perl
use strict; # https://rosettacode.org/wiki/Add_and_sort_square_numbers_in_ascending_order_from_three_lists use warnings; use ntheory qw( is_square ); use List::Util qw( sum );
my @lists = (
[3,4,34,25,9,12,36,56,36], [2,8,81,169,34,55,76,49,7], [75,121,75,144,35,16,46,35]);
my $sum = sum my @squares = grep is_square($_), sort { $a <=> $b } map @$_, @lists; print "sum $sum - @squares\n";</lang>
- Output:
sum 690 - 4 9 16 25 36 36 49 81 121 144 169
Phix
with javascript_semantics procedure squares(sequence lists) sequence res = sort(join(lists)), sq = {1} while res[$]>sq[$] do sq &= power(length(sq)+1,2) end while res = filter(res,"in",sq) printf(1,"Added:%,d, Sorted:%V\n",{sum(res),res}) end procedure squares({{3,4,34,25,9,12,36,56,36}, {2,8,81,169,34,55,76,49,7}, {75,121,75,144,35,16,46,35}})
Alternatively, and a smidgen faster but not enough to be measurable here, you could replace that inner while loop with:
integer m = res[$], s = 1, d = 1 while m>s do d += 2; s += d; sq &= s; end while
- Output:
Added:690, Sorted:{4,9,16,25,36,36,49,81,121,144,169}
Python
<lang python> import math
print("working...") list = [(3,4,34,25,9,12,36,56,36),(2,8,81,169,34,55,76,49,7),(75,121,75,144,35,16,46,35)] Squares = []
def issquare(x): for p in range(x): if x == p*p: return 1 for n in range(3): for m in range(len(list[n])): if issquare(list[n][m]): Squares.append(list[n][m])
Squares.sort() print(Squares) print("done...") </lang>
- Output:
working... [4, 9, 16, 25, 36, 36, 49, 81, 121, 144, 169] done...
Raku
<lang perl6>my $s = cache sort ( my $l = ( cache flat
[3,4,34,25,9,12,36,56,36], [2,8,81,169,34,55,76,49,7], [75,121,75,144,35,16,46,35]
)).grep: * ∈ cache {$++²}…*>$l.max;
put 'Added - Sorted'; put ' ' ~ $s.sum ~ ' ' ~ $s.gist;</lang>
Added - Sorted 690 (4 9 16 25 36 36 49 81 121 144 169)
Ring
<lang ring> load "stdlib.ring"
see "working..." + nl list = list(3) list[1] = [3,4,34,25,9,12,36,56,36] list[2] = [2,8,81,169,34,55,76,49,7] list[3] = [75,121,75,144,35,16,46,35] Primes = []
for n = 1 to 3
for m = 1 to len(list[n]) if issquare(list[n][m]) add(Primes,list[n][m]) ok next
next
Primes = sort(Primes) showArray(Primes)
see nl + "done..." + nl
func issquare(x)
for n = 1 to sqrt(x) if x = pow(n,2) return 1 ok next return 0
func showArray(array)
txt = "" see "[" for n = 1 to len(array) txt = txt + array[n] + "," next txt = left(txt,len(txt)-1) txt = txt + "]" see txt
</lang>
- Output:
working... [4,9,16,25,36,36,49,81,121,144,169] done...
Wren
<lang ecmascript>import "./math" for Int
var lists = [
[3,4,34,25,9,12,36,56,36], [2,8,81,169,34,55,76,49,7], [75,121,75,144,35,16,46,35]
]
var squares = [] for (list in lists) {
for (e in list) if (Int.isSquare(e)) squares.add(e)
} squares.sort() System.print(squares)</lang>
- Output:
[4, 9, 16, 25, 36, 36, 49, 81, 121, 144, 169]