RogerBW solutions for challenge no. 332

25 files changed, 944 insertions, 0 deletions

diff --git a/challenge-332/roger-bell-west/crystal/ch-1.cr b/challenge-332/roger-bell-west/crystal/ch-1.cr
new file mode 100755
index 0000000000..06b1ce1e51
--- /dev/null
+++ b/challenge-332/roger-bell-west/crystal/ch-1.cr
@@ -0,0 +1,18 @@
+#! /usr/bin/crystal
+
+def binarydate(a)
+  a.split("-").map{|n| n.to_i.to_s(2)}.join("-")
+end
+
+require "spec"
+describe "binarydate" do
+  it "test_ex1" do
+    binarydate("2025-07-26").should eq "11111101001-111-11010"
+  end
+  it "test_ex2" do
+    binarydate("2000-02-02").should eq "11111010000-10-10"
+  end
+  it "test_ex3" do
+    binarydate("2024-12-31").should eq "11111101000-1100-11111"
+  end
+end
diff --git a/challenge-332/roger-bell-west/crystal/ch-2.cr b/challenge-332/roger-bell-west/crystal/ch-2.cr
new file mode 100755
index 0000000000..e2c016bd69
--- /dev/null
+++ b/challenge-332/roger-bell-west/crystal/ch-2.cr
@@ -0,0 +1,27 @@
+#! /usr/bin/crystal
+
+def counterify(a)
+  cc = Hash(Char, Int32).new(default_value: 0)
+  a.each do |x|
+    cc[x] += 1
+  end
+  return cc
+end
+
+def oddletters(a)
+  c = counterify(a.chars)
+  c.values.all? { |v| v % 2 == 1 }
+end
+
+require "spec"
+describe "oddletters" do
+  it "test_ex1" do
+    oddletters("weekly").should eq false
+  end
+  it "test_ex2" do
+    oddletters("perl").should eq true
+  end
+  it "test_ex3" do
+    oddletters("challenge").should eq false
+  end
+end
diff --git a/challenge-332/roger-bell-west/javascript/ch-1.js b/challenge-332/roger-bell-west/javascript/ch-1.js
new file mode 100755
index 0000000000..9e43737bc9
--- /dev/null
+++ b/challenge-332/roger-bell-west/javascript/ch-1.js
@@ -0,0 +1,26 @@
+#! /usr/bin/node
+
+"use strict"
+
+function binarydate(a) {
+    return a.split("-").map(n => (n >>> 0).toString(2)).join("-");
+}
+
+if (binarydate('2025-07-26') == '11111101001-111-11010') {
+  process.stdout.write("Pass");
+} else {
+  process.stdout.write("FAIL");
+}
+process.stdout.write(" ");
+if (binarydate('2000-02-02') == '11111010000-10-10') {
+  process.stdout.write("Pass");
+} else {
+  process.stdout.write("FAIL");
+}
+process.stdout.write(" ");
+if (binarydate('2024-12-31') == '11111101000-1100-11111') {
+  process.stdout.write("Pass");
+} else {
+  process.stdout.write("FAIL");
+}
+process.stdout.write("\n");
diff --git a/challenge-332/roger-bell-west/javascript/ch-2.js b/challenge-332/roger-bell-west/javascript/ch-2.js
new file mode 100755
index 0000000000..b23d481d2f
--- /dev/null
+++ b/challenge-332/roger-bell-west/javascript/ch-2.js
@@ -0,0 +1,43 @@
+#! /usr/bin/node
+
+"use strict"
+
+function counterify(a) {
+    let cc = new Map;
+    for (let x of a) {
+        if (!cc.has(x)) {
+            cc.set(x, 0);
+        }
+        cc.set(x, cc.get(x) + 1);
+    }
+    return cc;
+}
+
+function oddletters(a) {
+    const c = counterify(a);
+    for (let v of c.values()) {
+        if (v % 2 == 0) {
+            return false;
+        }
+    }
+    return true;
+}
+
+if (!oddletters('weekly')) {
+  process.stdout.write("Pass");
+} else {
+  process.stdout.write("FAIL");
+}
+process.stdout.write(" ");
+if (oddletters('perl')) {
+  process.stdout.write("Pass");
+} else {
+  process.stdout.write("FAIL");
+}
+process.stdout.write(" ");
+if (!oddletters('challenge')) {
+  process.stdout.write("Pass");
+} else {
+  process.stdout.write("FAIL");
+}
+process.stdout.write("\n");
diff --git a/challenge-332/roger-bell-west/kotlin/ch-1.kt b/challenge-332/roger-bell-west/kotlin/ch-1.kt
new file mode 100644
index 0000000000..e6f516621c
--- /dev/null
+++ b/challenge-332/roger-bell-west/kotlin/ch-1.kt
@@ -0,0 +1,26 @@
+fun binarydate(a: String): String {
+    return a.split("-").map{it.toInt().toString(2)}.joinToString("-")
+}
+
+fun main() {
+
+    if (binarydate("2025-07-26") == "11111101001-111-11010") {
+        print("Pass")
+    } else {
+        print("Fail")
+    }
+    print(" ")
+    if (binarydate("2000-02-02") == "11111010000-10-10") {
+        print("Pass")
+    } else {
+        print("Fail")
+    }
+    print(" ")
+    if (binarydate("2024-12-31") == "11111101000-1100-11111") {
+        print("Pass")
+    } else {
+        print("Fail")
+    }
+    println("")
+
+}
diff --git a/challenge-332/roger-bell-west/kotlin/ch-2.kt b/challenge-332/roger-bell-west/kotlin/ch-2.kt
new file mode 100644
index 0000000000..1e281b2062
--- /dev/null
+++ b/challenge-332/roger-bell-west/kotlin/ch-2.kt
@@ -0,0 +1,35 @@
+fun counterify(a: List<Char>): Map<Char, Int> {
+    var cc = mutableMapOf<Char, Int>().withDefault({0})
+    for (x in a) {
+        cc.set(x, cc.getValue(x) + 1)
+    }
+    return cc
+}
+
+fun oddletters(a: String): Boolean {
+    val c = counterify(a.toCharArray().toList());
+    return c.values.all{v -> v % 2 == 1}
+}
+
+fun main() {
+
+    if (!oddletters("weekly")) {
+        print("Pass")
+    } else {
+        print("Fail")
+    }
+    print(" ")
+    if (oddletters("perl")) {
+        print("Pass")
+    } else {
+        print("Fail")
+    }
+    print(" ")
+    if (!oddletters("challenge")) {
+        print("Pass")
+    } else {
+        print("Fail")
+    }
+    println("")
+
+}
diff --git a/challenge-332/roger-bell-west/lua/ch-1.lua b/challenge-332/roger-bell-west/lua/ch-1.lua
new file mode 100755
index 0000000000..c90cecb21d
--- /dev/null
+++ b/challenge-332/roger-bell-west/lua/ch-1.lua
@@ -0,0 +1,87 @@
+#! /usr/bin/lua
+
+function splits(inputstr, sep)
+   sep = sep or '%s'
+   local starts = {1}
+   local ends = {}
+   local n = 1
+   while true do
+      local fs, fe = string.find(inputstr, sep, n)
+      if fs == nil then
+         break
+      end
+      table.insert(ends, fs - 1)
+      table.insert(starts, fe + 1)
+      n = fe + 1
+   end
+   table.insert(ends, #inputstr)
+   local t = {}
+   for i = 1, #starts do
+      local s = starts[i]
+      local e = ends[i]
+      if e >= s then
+         table.insert(t, string.sub(inputstr, s, e))
+      end
+   end
+   return t
+end
+
+function joins(t,pad)
+   local out=""
+   local later = false
+   for k,v in pairs(t) do
+      if later then
+         out = out .. pad
+      end
+      out = out .. v
+      later = true
+   end
+   return out
+end
+
+function tobinary(n)
+   if n == 0 then
+      return "0"
+   end
+   local t = {}
+   local m = 0 + n
+   while m > 0 do
+      if (m & 1) > 0 then
+         table.insert(t, 1, "1")
+      else
+         table.insert(t, 1, "0")
+      end
+      m = m >> 1
+   end
+   return joins(t, "")
+end
+
+function binarydate(a)
+   local out = {}
+   for _, n in ipairs(splits(a, "-")) do
+      table.insert(out, tobinary(n))
+   end
+   return joins(out, "-")
+end
+
+if binarydate("2025-07-26") == "11111101001-111-11010" then
+  io.write("Pass")
+else
+  io.write("FAIL")
+end
+io.write(" ")
+
+if binarydate("2000-02-02") == "11111010000-10-10" then
+  io.write("Pass")
+else
+  io.write("FAIL")
+end
+io.write(" ")
+
+if binarydate("2024-12-31") == "11111101000-1100-11111" then
+  io.write("Pass")
+else
+  io.write("FAIL")
+end
+print("")
+
diff --git a/challenge-332/roger-bell-west/lua/ch-2.lua b/challenge-332/roger-bell-west/lua/ch-2.lua
new file mode 100755
index 0000000000..6e1b6a520d
--- /dev/null
+++ b/challenge-332/roger-bell-west/lua/ch-2.lua
@@ -0,0 +1,55 @@
+#! /usr/bin/lua
+
+function split(t)
+   local cl = {}
+   string.gsub(t,
+               "(.)",
+               function(c)
+                  table.insert(cl, c)
+               end
+   )
+   return cl
+end
+
+function counterify(a)
+   local cc = {}
+   for _, c in ipairs(a) do
+      if cc[c] == nil then
+         cc[c] = 0
+      end
+      cc[c] = cc[c] + 1
+   end
+   return cc
+end
+
+function oddletters(a)
+   local c = counterify(split(a))
+   for _, v in pairs(c) do
+      if v % 2 == 0 then
+         return false
+      end
+   end
+   return true
+end
+
+if not oddletters("weekly") then
+  io.write("Pass")
+else
+  io.write("FAIL")
+end
+io.write(" ")
+
+if oddletters("perl") then
+  io.write("Pass")
+else
+  io.write("FAIL")
+end
+io.write(" ")
+
+if not oddletters("challenge") then
+  io.write("Pass")
+else
+  io.write("FAIL")
+end
+print("")
+
diff --git a/challenge-332/roger-bell-west/perl/ch-1.pl b/challenge-332/roger-bell-west/perl/ch-1.pl
new file mode 100755
index 0000000000..c43e526375
--- /dev/null
+++ b/challenge-332/roger-bell-west/perl/ch-1.pl
@@ -0,0 +1,15 @@
+#! /usr/bin/perl
+
+use strict;
+use warnings;
+use experimental 'signatures';
+
+use Test::More tests => 3;
+
+is(binarydate('2025-07-26'), '11111101001-111-11010', 'example 1');
+is(binarydate('2000-02-02'), '11111010000-10-10', 'example 2');
+is(binarydate('2024-12-31'), '11111101000-1100-11111', 'example 3');
+
+sub binarydate($a) {
+  join('-', map {sprintf('%b', $_)} split('-', $a));
+}
diff --git a/challenge-332/roger-bell-west/perl/ch-2.pl b/challenge-332/roger-bell-west/perl/ch-2.pl
new file mode 100755
index 0000000000..454c18cacf
--- /dev/null
+++ b/challenge-332/roger-bell-west/perl/ch-2.pl
@@ -0,0 +1,22 @@
+#! /usr/bin/perl
+
+use strict;
+use warnings;
+use experimental 'signatures';
+
+use Test::More tests => 3;
+
+is(oddletters('weekly'), 0, 'example 1');
+is(oddletters('perl'), 1, 'example 2');
+is(oddletters('challenge'), 0, 'example 3');
+
+sub oddletters($a) {
+  my %c;
+  map {$c{$_}++} split '', $a;
+  foreach my $v (values %c) {
+    if ($v % 2 == 0) {
+      return 0;
+    }
+  }
+  return 1;
+}
diff --git a/challenge-332/roger-bell-west/postscript/ch-1.ps b/challenge-332/roger-bell-west/postscript/ch-1.ps
new file mode 100644
index 0000000000..197c74d010
--- /dev/null
+++ b/challenge-332/roger-bell-west/postscript/ch-1.ps
@@ -0,0 +1,169 @@
+%!PS
+
+% begin included library code
+% see https://codeberg.org/Firedrake/postscript-libraries/
+/test.start {
+    print (:) print
+    /test.pass 0 def
+    /test.count 0 def
+} bind def
+
+/test.end {
+    ( ) print
+    test.count 0 gt {
+        (Passed ) print
+        test.pass (...) cvs print
+        (/) print
+        test.count (...) cvs print
+        ( \() print
+        test.pass 100 mul test.count idiv (...) cvs print
+        (%\)) print
+        (\r\n) print
+    } if
+} bind def
+
+/a2s {
+    2 dict begin
+    /i exch def
+    i length dup string /o exch def
+    1 sub 0 exch 1 exch {
+        dup i 3 -1 roll get o 3 1 roll put
+    } for
+    o
+    end
+} bind def
+
+
+/test {
+    /test.count test.count 1 add def
+    {
+        /test.pass test.pass 1 add def
+    } {
+        ( ) print
+        test.count (....) cvs print
+        (-fail) print
+    } ifelse
+} bind def
+
+/map { % array proc -> array
+    2 dict begin
+    /p exch def
+    [ exch
+      {
+          p
+      } forall
+    ]
+    end
+} bind def
+
+/reverse {
+    1 dict begin
+    dup length /l exch def
+    [ exch
+      aload pop
+      2 1 l {
+          -1 roll
+      } for
+    ]
+    end
+} bind def
+
+/strjoin % [(a) (b) (c)] (j) -> (ajbjc)
+{
+    3 dict begin
+    /j exch def
+    dup 0 get /out exch def
+    /first true def
+    {
+        first {
+            pop
+            /first false def
+        } {
+            out j strconcat
+            exch strconcat
+            /out exch def
+        } ifelse
+    } forall
+    out
+    end
+} bind def
+
+/strconcat % (a) (b) -> (ab)  
+{
+    [
+        3 -1 roll
+        s2a aload length
+        2 add -1 roll
+        s2a aload pop
+    ] a2s
+} bind def
+
+/strsplit % (ajbjc) (j) -> [ (a) (b) (c) ]
+{
+    1 dict begin
+    /sep exch def
+    [ exch
+      {
+          dup length 0 eq {
+              pop
+              exit
+          } {
+              sep search {
+                  exch pop
+                  dup length 0 eq {
+                      pop
+                  } {
+                      exch
+                  } ifelse
+              } {
+                  ()
+              } ifelse
+          } ifelse
+      } loop
+    ]
+    end
+} bind def
+
+/s2a {
+    [ exch { } forall ]
+} bind def
+
+
+% end included library code
+
+/tobinary {
+    0 dict begin
+    /m exch def
+    m 0 eq {
+        (0)
+    } {
+        [
+            {
+                m 0 eq {
+                    exit
+                } if
+                m 1 and 0 gt {
+                    49
+                } {
+                    48
+                } ifelse
+                /m m -1 bitshift def
+            } loop
+        ] reverse a2s
+    } ifelse
+    end
+} bind def
+
+/binarydate {
+    0 dict begin
+    (-) strsplit
+    { cvi tobinary } map
+    (-) strjoin
+    end
+} bind def
+
+(binarydate) test.start
+(2025-07-26) binarydate (11111101001-111-11010) eq test
+(2000-02-02) binarydate (11111010000-10-10) eq test
+(2024-12-31) binarydate (11111101000-1100-11111) eq test
+test.end
diff --git a/challenge-332/roger-bell-west/postscript/ch-2.ps b/challenge-332/roger-bell-west/postscript/ch-2.ps
new file mode 100644
index 0000000000..8e9b1daa9d
--- /dev/null
+++ b/challenge-332/roger-bell-west/postscript/ch-2.ps
@@ -0,0 +1,83 @@
+%!PS
+
+% begin included library code
+% see https://codeberg.org/Firedrake/postscript-libraries/
+/all { % [a b] proc -> bool
+    1 dict begin
+    /p exch def
+    true exch
+    {
+        p not {
+            pop false
+            exit
+        } if
+    } forall
+    end
+} bind def
+
+/test {
+    /test.count test.count 1 add def
+    {
+        /test.pass test.pass 1 add def
+    } {
+        ( ) print
+        test.count (....) cvs print
+        (-fail) print
+    } ifelse
+} bind def
+
+/test.start {
+    print (:) print
+    /test.pass 0 def
+    /test.count 0 def
+} bind def
+
+/test.end {
+    ( ) print
+    test.count 0 gt {
+        (Passed ) print
+        test.pass (...) cvs print
+        (/) print
+        test.count (...) cvs print
+        ( \() print
+        test.pass 100 mul test.count idiv (...) cvs print
+        (%\)) print
+        (\r\n) print
+    } if
+} bind def
+
+/values { % dict -> array of dict values
+    [ exch
+      {
+          exch pop
+      } forall
+    ]
+} bind def
+
+
+% end included library code
+
+/counterify {
+    2 dict begin
+    /c 0 dict def
+    {
+        /n exch def
+        c n known {
+            c n 2 copy get 1 add put
+        } {
+            c n 1 put
+        } ifelse
+    } forall
+    c
+    end
+} bind def
+
+/oddletters {
+    counterify values { 2 mod 1 eq } all
+} bind def
+
+(oddletters) test.start
+(weekly) oddletters not test
+(perl) oddletters test
+(challenge) oddletters not test
+test.end
diff --git a/challenge-332/roger-bell-west/python/ch-1.py b/challenge-332/roger-bell-west/python/ch-1.py
new file mode 100755
index 0000000000..bf4a9de2d7
--- /dev/null
+++ b/challenge-332/roger-bell-west/python/ch-1.py
@@ -0,0 +1,19 @@
+#! /usr/bin/python3
+
+def binarydate(a):
+  return "-".join(["{0:b}".format(int(n)) for n in a.split("-")])
+
+import unittest
+
+class TestBinarydate(unittest.TestCase):
+
+  def test_ex1(self):
+    self.assertEqual(binarydate("2025-07-26"), "11111101001-111-11010", 'example 1')
+
+  def test_ex2(self):
+    self.assertEqual(binarydate("2000-02-02"), "11111010000-10-10", 'example 2')
+
+  def test_ex3(self):
+    self.assertEqual(binarydate("2024-12-31"), "11111101000-1100-11111", 'example 3')
+
+unittest.main()
diff --git a/challenge-332/roger-bell-west/python/ch-2.py b/challenge-332/roger-bell-west/python/ch-2.py
new file mode 100755
index 0000000000..02aba2013e
--- /dev/null
+++ b/challenge-332/roger-bell-west/python/ch-2.py
@@ -0,0 +1,24 @@
+#! /usr/bin/python3
+
+from collections import defaultdict
+
+def oddletters(a):
+  c = defaultdict(lambda: 0)
+  for x in a:
+    c[x] += 1
+  return all(x % 2 == 1 for x in c.values())
+
+import unittest
+
+class TestOddletters(unittest.TestCase):
+
+  def test_ex1(self):
+    self.assertEqual(oddletters("weekly"), False, 'example 1')
+
+  def test_ex2(self):
+    self.assertEqual(oddletters("perl"), True, 'example 2')
+
+  def test_ex3(self):
+    self.assertEqual(oddletters("challenge"), False, 'example 3')
+
+unittest.main()
diff --git a/challenge-332/roger-bell-west/raku/ch-1.p6 b/challenge-332/roger-bell-west/raku/ch-1.p6
new file mode 100755
index 0000000000..e329103b16
--- /dev/null
+++ b/challenge-332/roger-bell-west/raku/ch-1.p6
@@ -0,0 +1,13 @@
+#! /usr/bin/raku
+
+use Test;
+
+plan 3;
+
+is(binarydate('2025-07-26'), '11111101001-111-11010', 'example 1');
+is(binarydate('2000-02-02'), '11111010000-10-10', 'example 2');
+is(binarydate('2024-12-31'), '11111101000-1100-11111', 'example 3');
+
+sub binarydate($a) {
+  $a.split('-').map({sprintf('%b', $_)}).join('-');
+}
diff --git a/challenge-332/roger-bell-west/raku/ch-2.p6 b/challenge-332/roger-bell-west/raku/ch-2.p6
new file mode 100755
index 0000000000..42d3308f01
--- /dev/null
+++ b/challenge-332/roger-bell-west/raku/ch-2.p6
@@ -0,0 +1,15 @@
+#! /usr/bin/raku
+
+use Test;
+
+plan 3;
+
+is(oddletters('weekly'), False, 'example 1');
+is(oddletters('perl'), True, 'example 2');
+is(oddletters('challenge'), False, 'example 3');
+
+sub oddletters($a) {
+    my %c;
+    $a.comb('').map({%c{$_}++});
+    (%c.values.all % 2 == 1).Bool;
+}
diff --git a/challenge-332/roger-bell-west/ruby/ch-1.rb b/challenge-332/roger-bell-west/ruby/ch-1.rb
new file mode 100755
index 0000000000..3f4f401381
--- /dev/null
+++ b/challenge-332/roger-bell-west/ruby/ch-1.rb
@@ -0,0 +1,23 @@
+#! /usr/bin/ruby
+
+def binarydate(a)
+  a.split("-").map{|n| n.to_i.to_s(2)}.join("-")
+end
+
+require 'test/unit'
+
+class TestBinarydate < Test::Unit::TestCase
+
+  def test_ex1
+    assert_equal('11111101001-111-11010', binarydate('2025-07-26'))
+  end
+
+  def test_ex2
+    assert_equal('11111010000-10-10', binarydate('2000-02-02'))
+  end
+
+  def test_ex3
+    assert_equal('11111101000-1100-11111', binarydate('2024-12-31'))
+  end
+
+end
diff --git a/challenge-332/roger-bell-west/ruby/ch-2.rb b/challenge-332/roger-bell-west/ruby/ch-2.rb
new file mode 100755
index 0000000000..3b9bd0b3ec
--- /dev/null
+++ b/challenge-332/roger-bell-west/ruby/ch-2.rb
@@ -0,0 +1,33 @@
+#! /usr/bin/ruby
+
+def counterify(a)
+  cc = Hash.new
+  cc.default = 0
+  a.each do |x|
+    cc[x] += 1
+  end
+  return cc
+end
+
+def oddletters(a)
+  c = counterify(a.chars)
+  c.values.all? { |v| v % 2 == 1 }
+end
+
+require 'test/unit'
+
+class TestOddletters < Test::Unit::TestCase
+
+  def test_ex1
+    assert_equal(false, oddletters('weekly'))
+  end
+
+  def test_ex2
+    assert_equal(true, oddletters('perl'))
+  end
+
+  def test_ex3
+    assert_equal(false, oddletters('challenge'))
+  end
+
+end
diff --git a/challenge-332/roger-bell-west/rust/ch-1.rs b/challenge-332/roger-bell-west/rust/ch-1.rs
new file mode 100755
index 0000000000..94658f53b8
--- /dev/null
+++ b/challenge-332/roger-bell-west/rust/ch-1.rs
@@ -0,0 +1,24 @@
+#! /bin/sh
+//usr/bin/env rustc --test $0 -o ${0}x && ./${0}x --nocapture; rm -f ${0}x ; exit
+
+#[test]
+fn test_ex1() {
+    assert_eq!(binarydate("2025-07-26"), "11111101001-111-11010");
+}
+
+#[test]
+fn test_ex2() {
+    assert_eq!(binarydate("2000-02-02"), "11111010000-10-10");
+}
+
+#[test]
+fn test_ex3() {
+    assert_eq!(binarydate("2024-12-31"), "11111101000-1100-11111");
+}
+
+fn binarydate(a: &str) -> String {
+    a.split('-')
+        .map(|n| format!("{:0b}", n.parse::<u32>().unwrap()))
+        .collect::<Vec<_>>()
+        .join("-")
+}
diff --git a/challenge-332/roger-bell-west/rust/ch-2.rs b/challenge-332/roger-bell-west/rust/ch-2.rs
new file mode 100755
index 0000000000..f178dfb5c6
--- /dev/null
+++ b/challenge-332/roger-bell-west/rust/ch-2.rs
@@ -0,0 +1,21 @@
+use counter::Counter;
+
+#[test]
+fn test_ex1() {
+    assert_eq!(oddletters("weekly"), false);
+}
+
+#[test]
+fn test_ex2() {
+    assert_eq!(oddletters("perl"), true);
+}
+
+#[test]
+fn test_ex3() {
+    assert_eq!(oddletters("challenge"), false);
+}
+
+fn oddletters(a: &str) -> bool {
+    let c = a.chars().collect::<Counter<_>>();
+    c.values().all(|v| v % 2 == 1)
+}
diff --git a/challenge-332/roger-bell-west/scala/ch-1.scala b/challenge-332/roger-bell-west/scala/ch-1.scala
new file mode 100644
index 0000000000..840aa8a029
--- /dev/null
+++ b/challenge-332/roger-bell-west/scala/ch-1.scala
@@ -0,0 +1,27 @@
+
+object Binarydate {
+  def binarydate(a: String): String = {
+    a.split("-").map(n => n.toInt.toBinaryString).mkString("-")
+  }
+  def main(args: Array[String]) {
+    if (binarydate("2025-07-26") == "11111101001-111-11010") {
+      print("Pass")
+    } else {
+      print("Fail")
+    }
+    print(" ")
+    if (binarydate("2000-02-02") == "11111010000-10-10") {
+      print("Pass")
+    } else {
+      print("Fail")
+    }
+    print(" ")
+    if (binarydate("2024-12-31") == "11111101000-1100-11111") {
+      print("Pass")
+    } else {
+      print("Fail")
+    }
+    println("")
+
+  }
+}
diff --git a/challenge-332/roger-bell-west/scala/ch-2.scala b/challenge-332/roger-bell-west/scala/ch-2.scala
new file mode 100644
index 0000000000..7335ec8524
--- /dev/null
+++ b/challenge-332/roger-bell-west/scala/ch-2.scala
@@ -0,0 +1,38 @@
+import scala.collection.mutable
+
+object Oddletters {
+  def counterify(a: List[Char]): Map[Char, Int] = {
+    var cc = mutable.Map.empty[Char, Int].withDefaultValue(0)
+    for (x <- a) {
+      cc += (x -> (cc(x) + 1))
+    }
+    cc.toMap
+  }
+
+  def oddletters(a: String): Boolean = {
+    val c = counterify(a.toCharArray.toList);
+    c.values.forall(_ % 2 == 1)
+  }
+
+  def main(args: Array[String]) {
+    if (!oddletters("weekly")) {
+      print("Pass")
+    } else {
+      print("Fail")
+    }
+    print(" ")
+    if (oddletters("perl")) {
+      print("Pass")
+    } else {
+      print("Fail")
+    }
+    print(" ")
+    if (!oddletters("challenge")) {
+      print("Pass")
+    } else {
+      print("Fail")
+    }
+    println("")
+
+  }
+}
diff --git a/challenge-332/roger-bell-west/tests.json b/challenge-332/roger-bell-west/tests.json
new file mode 100644
index 0000000000..de49682a74
--- /dev/null
+++ b/challenge-332/roger-bell-west/tests.json
@@ -0,0 +1,32 @@
+{
+    "ch-1" : [
+        {
+            "function" : "binarydate",
+            "arguments" : "2025-07-26",
+            "result" : "11111101001-111-11010"
+        },
+        {
+            "arguments" : "2000-02-02",
+            "result" : "11111010000-10-10"
+        },
+        {
+            "arguments" : "2024-12-31",
+            "result" : "11111101000-1100-11111"
+        }
+    ],
+    "ch-2" : [
+        {
+            "function" : "oddletters",
+            "arguments" : "weekly",
+            "result" : false
+        },
+        {
+            "arguments" : "perl",
+            "result" : true
+        },
+        {
+            "arguments" : "challenge",
+            "result" : false
+        }
+    ]
+}
diff --git a/challenge-332/roger-bell-west/typst/ch-1.typ b/challenge-332/roger-bell-west/typst/ch-1.typ
new file mode 100644
index 0000000000..9b7b3a38f4
--- /dev/null
+++ b/challenge-332/roger-bell-west/typst/ch-1.typ
@@ -0,0 +1,39