- Template folders for challenge 004.

72 files changed, 158 insertions, 0 deletions

diff --git a/challenge-004/abigail/README b/challenge-004/abigail/README
new file mode 100644
index 0000000000..5f0d73ae16
--- /dev/null
+++ b/challenge-004/abigail/README
@@ -0,0 +1 @@
+Solution by Abigail
diff --git a/challenge-004/adam-russell/README b/challenge-004/adam-russell/README
new file mode 100644
index 0000000000..9420c9a781
--- /dev/null
+++ b/challenge-004/adam-russell/README
@@ -0,0 +1 @@
+Solution by Adam Russell
diff --git a/challenge-004/ailbhe-tweedie/README b/challenge-004/ailbhe-tweedie/README
new file mode 100644
index 0000000000..36d4034b70
--- /dev/null
+++ b/challenge-004/ailbhe-tweedie/README
@@ -0,0 +1 @@
+Solution by Ailbhe Tweedie
diff --git a/challenge-004/alex-daniel/README b/challenge-004/alex-daniel/README
new file mode 100644
index 0000000000..65550789bd
--- /dev/null
+++ b/challenge-004/alex-daniel/README
@@ -0,0 +1 @@
+Solution by Alex Daniel.
diff --git a/challenge-004/alexander-karelas/README b/challenge-004/alexander-karelas/README
new file mode 100644
index 0000000000..3de9fce8d9
--- /dev/null
+++ b/challenge-004/alexander-karelas/README
@@ -0,0 +1 @@
+Solution by Alexander Karelas
diff --git a/challenge-004/alexey-melezhik/README b/challenge-004/alexey-melezhik/README
new file mode 100644
index 0000000000..ca7008f224
--- /dev/null
+++ b/challenge-004/alexey-melezhik/README
@@ -0,0 +1 @@
+Solution by Alexey Melezhik
diff --git a/challenge-004/andrezgz/README b/challenge-004/andrezgz/README
new file mode 100644
index 0000000000..f4fd0da88e
--- /dev/null
+++ b/challenge-004/andrezgz/README
@@ -0,0 +1 @@
+Solution by Andrezgz
diff --git a/challenge-004/antonio-gamiz/README b/challenge-004/antonio-gamiz/README
new file mode 100644
index 0000000000..1f5ed5871a
--- /dev/null
+++ b/challenge-004/antonio-gamiz/README
@@ -0,0 +1 @@
+Solution by Antonio Gamiz
diff --git a/challenge-004/arne-sommer/README b/challenge-004/arne-sommer/README
new file mode 100644
index 0000000000..b5d88e4df4
--- /dev/null
+++ b/challenge-004/arne-sommer/README
@@ -0,0 +1 @@
+Solution by Arne Sommer.
diff --git a/challenge-004/arpad-toth/README b/challenge-004/arpad-toth/README
new file mode 100644
index 0000000000..6661dd82c1
--- /dev/null
+++ b/challenge-004/arpad-toth/README
@@ -0,0 +1 @@
+Solution by Arpad Toth
diff --git a/challenge-004/athanasius/README b/challenge-004/athanasius/README
new file mode 100644
index 0000000000..cc357fda4a
--- /dev/null
+++ b/challenge-004/athanasius/README
@@ -0,0 +1 @@
+Solution by Athanasius
diff --git a/challenge-004/aubrey-quarcoo/README b/challenge-004/aubrey-quarcoo/README
new file mode 100644
index 0000000000..8e63a2c1f5
--- /dev/null
+++ b/challenge-004/aubrey-quarcoo/README
@@ -0,0 +1 @@
+Solution by Aubrey Quarcoo
diff --git a/challenge-004/bill-palmer/README b/challenge-004/bill-palmer/README
new file mode 100644
index 0000000000..08ec849a41
--- /dev/null
+++ b/challenge-004/bill-palmer/README
@@ -0,0 +1 @@
+Solution by Bill Palmer.
diff --git a/challenge-004/bob-kleemann/README b/challenge-004/bob-kleemann/README
new file mode 100644
index 0000000000..78680e4035
--- /dev/null
+++ b/challenge-004/bob-kleemann/README
@@ -0,0 +1 @@
+Solution by Bob Kleemann
diff --git a/challenge-004/cliveholloway/README b/challenge-004/cliveholloway/README
new file mode 100644
index 0000000000..b69201296e
--- /dev/null
+++ b/challenge-004/cliveholloway/README
@@ -0,0 +1 @@
+Solution by Clive Holloway
diff --git a/challenge-004/daniel-mantovani/README b/challenge-004/daniel-mantovani/README
new file mode 100644
index 0000000000..ed538216f2
--- /dev/null
+++ b/challenge-004/daniel-mantovani/README
@@ -0,0 +1 @@
+Solution by Daniel Mantovani
diff --git a/challenge-004/dave-cross/README b/challenge-004/dave-cross/README
new file mode 100644
index 0000000000..04b1b0623b
--- /dev/null
+++ b/challenge-004/dave-cross/README
@@ -0,0 +1 @@
+Solution by Dave Cross
diff --git a/challenge-004/dave-jacoby/README b/challenge-004/dave-jacoby/README
new file mode 100644
index 0000000000..7c06689f16
--- /dev/null
+++ b/challenge-004/dave-jacoby/README
@@ -0,0 +1 @@
+Solution by Dave Jacoby
diff --git a/challenge-004/david-kayal/README b/challenge-004/david-kayal/README
new file mode 100644
index 0000000000..66f8615260
--- /dev/null
+++ b/challenge-004/david-kayal/README
@@ -0,0 +1 @@
+Solution by David Kayal
diff --git a/challenge-004/doug-schrag/README b/challenge-004/doug-schrag/README
new file mode 100644
index 0000000000..bf8a10ffb4
--- /dev/null
+++ b/challenge-004/doug-schrag/README
@@ -0,0 +1 @@
+Solution by Doug Schrag
diff --git a/challenge-004/duncan-c-white/README b/challenge-004/duncan-c-white/README
new file mode 100644
index 0000000000..d6a6cb2f04
--- /dev/null
+++ b/challenge-004/duncan-c-white/README
@@ -0,0 +1,8 @@
+I have investigated Challenge 1 (the Regular numbers) reasonably thoroughly,
+building and comparing 4 iterative solutions to generate them.  I also
+investigated a Lazy List version, storing the tail of the list as a promise -
+a function to call when you wanted the next head item, and the returned tail
+is another promise - to generate the next item later when needed.  However,
+I couldn't get that to work so abandoned it:-)
+
+Challenge 2 (Pascal's Triangle) by contrast is pretty basic and simple-minded.
diff --git a/challenge-004/eddy-hs/README b/challenge-004/eddy-hs/README
new file mode 100644
index 0000000000..0ed51d222d
--- /dev/null
+++ b/challenge-004/eddy-hs/README
@@ -0,0 +1 @@
+Solution by Eddy HS
diff --git a/challenge-004/finley/README b/challenge-004/finley/README
new file mode 100644
index 0000000000..f08a121076
--- /dev/null
+++ b/challenge-004/finley/README
@@ -0,0 +1 @@
+Solution by Finley
diff --git a/challenge-004/fjwhittle/README b/challenge-004/fjwhittle/README
new file mode 100644
index 0000000000..7dcc95e189
--- /dev/null
+++ b/challenge-004/fjwhittle/README
@@ -0,0 +1 @@
+Solution by Francis Whittle
diff --git a/challenge-004/fred-zinn/README b/challenge-004/fred-zinn/README
new file mode 100644
index 0000000000..17bac4f094
--- /dev/null
+++ b/challenge-004/fred-zinn/README
@@ -0,0 +1 @@
+Solution by Fred Zinn
diff --git a/challenge-004/freddie-b/README b/challenge-004/freddie-b/README
new file mode 100644
index 0000000000..823d7474b5
--- /dev/null
+++ b/challenge-004/freddie-b/README
@@ -0,0 +1 @@
+Solution by Freddie B
diff --git a/challenge-004/gustavo-chaves/README b/challenge-004/gustavo-chaves/README
new file mode 100644
index 0000000000..a66bbbf8a3
--- /dev/null
+++ b/challenge-004/gustavo-chaves/README
@@ -0,0 +1 @@
+Solution by Gustavo Chaves
diff --git a/challenge-004/jacques-guinnebault/README b/challenge-004/jacques-guinnebault/README
new file mode 100644
index 0000000000..9d3e7c037f
--- /dev/null
+++ b/challenge-004/jacques-guinnebault/README
@@ -0,0 +1 @@
+Solution by Jacques Guinnebault.
diff --git a/challenge-004/jaime/README b/challenge-004/jaime/README
new file mode 100644
index 0000000000..5b29651691
--- /dev/null
+++ b/challenge-004/jaime/README
@@ -0,0 +1 @@
+Solution by Jaime Corchado.
diff --git a/challenge-004/jaldhar-h-vyas/README b/challenge-004/jaldhar-h-vyas/README
new file mode 100644
index 0000000000..7dce927eca
--- /dev/null
+++ b/challenge-004/jaldhar-h-vyas/README
@@ -0,0 +1 @@
+Solution by Jaldhar H. Vyas
diff --git a/challenge-004/james-smith/README.md b/challenge-004/james-smith/README.md
new file mode 100644
index 0000000000..4a9b029e85
--- /dev/null
+++ b/challenge-004/james-smith/README.md
@@ -0,0 +1,74 @@
+Solution by James Smith
+
+I'm new to Perl 6 so looking for interesting (not necessarily optimal
+solutions) to try out some of the cool features that Perl 6 gives over
+Perl 5 - especially as it is basically a new language with new syntactic
+sugar....
+
+# Problem 2
+
+Wierdly I think problem 2 is the easier one this week.
+
+I wrote this twice, the second solution I'm using minimizes memory
+usage by extends the array rather than copying a new one. We just
+loop through the array adding the next value to the current one
+and then unshift the first 1 to the array.
+
+Can't see an easy neat way of doing it differently in Perl 5 and 6 -
+but I do like
+
+1. the MAIN function in perl which clears up how CLI
+parameters are pulled into the code and
+
+1. the arbitrary precision
+integers... (no more "e+" notation)
+
+# Problem 1
+
+## Perl 5
+
+This was an interesting challenge - and still working out if I have
+the optimal solution, again I'll write an iterator which gets the
+next number and call this multiple times to get the list....
+
+To find the next one we have to find the first number larger than the
+current largest number in the list - which is a multiple of 5, 3 or 2
+of an entry already in the list...
+
+The loop we use is interesting as it contains `next`, `last` and `redo`
+commands. Firstly how it works - we are looking for numbers whose
+multiples are larger than the largest value.
+
+* so we start looping through the list looking for multiples of 5 (we
+will get to a larger value first when multiplying by 5). We use `next`
+here to short cut the loop until we have reached a larger value...
+
+* we then store this, and then continue with the next highest factor.
+
+  * If there are no factors left we use `last` to exit the loop and
+  and "add" the value to the hamming array.
+  
+  * If there are factors left we need to continue the loop with the
+  new value - BUT - we need to re-check the current element from the
+  hamming array. We do this with `redo` which repeats the loop with
+  the same value...
+
+* once we have a new value we store it on the array and return it...
+
+This method means we only loop through less than once rather than
+looping through for 2, 3 & 5....
+
+## Perl 6
+
+I'm new to Perl 6 and so looking for what features of the language
+give me an advantage of Perl 5 which I've been programming for over
+20 years now...
+
+So I looked at using a generator with lazy evaluation using 
+`lazy gather` and `take` to generate the values... Looks interesting
+as a "programming construct" but again like last weeks use of
+currying - does not particularly look efficient in this case.
+
+
+
+
diff --git a/challenge-004/jeff/README b/challenge-004/jeff/README
new file mode 100644
index 0000000000..d5f15f4a8e
--- /dev/null
+++ b/challenge-004/jeff/README
@@ -0,0 +1 @@
+Solution by Jeff
diff --git a/challenge-004/jeremy-carman/README b/challenge-004/jeremy-carman/README
new file mode 100644
index 0000000000..3d08510e49
--- /dev/null
+++ b/challenge-004/jeremy-carman/README
@@ -0,0 +1 @@
+Solution by Jeremy Carman
diff --git a/challenge-004/jim-bacon/README b/challenge-004/jim-bacon/README
new file mode 100644
index 0000000000..8dcfd637a3
--- /dev/null
+++ b/challenge-004/jim-bacon/README
@@ -0,0 +1 @@
+Solution by Jim Bacon
diff --git a/challenge-004/jj-merelo/README b/challenge-004/jj-merelo/README
new file mode 100644
index 0000000000..d09838676b
--- /dev/null
+++ b/challenge-004/jj-merelo/README
@@ -0,0 +1 @@
+Solution by JJ Merelo
diff --git a/challenge-004/jo-christian-oterhals/README b/challenge-004/jo-christian-oterhals/README
new file mode 100644
index 0000000000..eafff999fb
--- /dev/null
+++ b/challenge-004/jo-christian-oterhals/README
@@ -0,0 +1 @@
+Solution by Jo Christian Oterhals
diff --git a/challenge-004/joelle-maslak/README b/challenge-004/joelle-maslak/README
new file mode 100644
index 0000000000..d12c7940c3
--- /dev/null
+++ b/challenge-004/joelle-maslak/README
@@ -0,0 +1 @@
+Solution by Joelle Maslak
diff --git a/challenge-004/john-barrett/README b/challenge-004/john-barrett/README
new file mode 100644
index 0000000000..a7ff0af641
--- /dev/null
+++ b/challenge-004/john-barrett/README
@@ -0,0 +1 @@
+Solution by John Barrett
diff --git a/challenge-004/juan-caballero/README b/challenge-004/juan-caballero/README
new file mode 100644
index 0000000000..bffe4b05c2
--- /dev/null
+++ b/challenge-004/juan-caballero/README
@@ -0,0 +1 @@
+Solution by Juan Caballero
diff --git a/challenge-004/khalid/README b/challenge-004/khalid/README
new file mode 100644
index 0000000000..1ca4211368
--- /dev/null
+++ b/challenge-004/khalid/README
@@ -0,0 +1 @@
+Solution by Khalid
diff --git a/challenge-004/kian-meng-ang/README b/challenge-004/kian-meng-ang/README
new file mode 100644
index 0000000000..a5f0359813
--- /dev/null
+++ b/challenge-004/kian-meng-ang/README
@@ -0,0 +1 @@
+Solution by Kian-Meng Ang
diff --git a/challenge-004/kivanc-yazan/README b/challenge-004/kivanc-yazan/README
new file mode 100644
index 0000000000..bc7f8ca509
--- /dev/null
+++ b/challenge-004/kivanc-yazan/README
@@ -0,0 +1 @@
+Solution by Kivanc Yazan
diff --git a/challenge-004/lars-balker/README b/challenge-004/lars-balker/README
new file mode 100644
index 0000000000..054649c9eb
--- /dev/null
+++ b/challenge-004/lars-balker/README
@@ -0,0 +1 @@
+Solution by Lars Balker
diff --git a/challenge-004/laurent-rosenfeld/README b/challenge-004/laurent-rosenfeld/README
new file mode 100644
index 0000000000..f9c6e1437e
--- /dev/null
+++ b/challenge-004/laurent-rosenfeld/README
@@ -0,0 +1 @@
+Solution by Laurent Rosenfeld
diff --git a/challenge-004/magnus-woldrich/README b/challenge-004/magnus-woldrich/README
new file mode 100644
index 0000000000..79cde2997c
--- /dev/null
+++ b/challenge-004/magnus-woldrich/README
@@ -0,0 +1 @@
+Solution by Magnus Woldrich
diff --git a/challenge-004/mark-senn/README b/challenge-004/mark-senn/README
new file mode 100644
index 0000000000..f37c93431c
--- /dev/null
+++ b/challenge-004/mark-senn/README
@@ -0,0 +1 @@
+Solution by Mark Senn
diff --git a/challenge-004/martin-mugeni/README b/challenge-004/martin-mugeni/README
new file mode 100644
index 0000000000..416ca98166
--- /dev/null
+++ b/challenge-004/martin-mugeni/README
@@ -0,0 +1 @@
+Solution by Martin Mugeni
diff --git a/challenge-004/matt-latusek/README b/challenge-004/matt-latusek/README
new file mode 100644
index 0000000000..e1dc8b6e16
--- /dev/null
+++ b/challenge-004/matt-latusek/README
@@ -0,0 +1 @@
+Solution by Matt Latusek.
diff --git a/challenge-004/maxim-kolodyazhny/README b/challenge-004/maxim-kolodyazhny/README
new file mode 100644
index 0000000000..e5b4df7154
--- /dev/null
+++ b/challenge-004/maxim-kolodyazhny/README
@@ -0,0 +1 @@