weeks 1-4, 256 in Nim

3 files changed, 74 insertions, 0 deletions

diff --git a/challenge-003/archargelod/README b/challenge-003/archargelod/README
new file mode 100644
index 0000000000..6cd57e1074
--- /dev/null
+++ b/challenge-003/archargelod/README
@@ -0,0 +1 @@
+Solution by archargelod
diff --git a/challenge-003/archargelod/nim/ch_1.nim b/challenge-003/archargelod/nim/ch_1.nim
new file mode 100755
index 0000000000..06933336e2
--- /dev/null
+++ b/challenge-003/archargelod/nim/ch_1.nim
@@ -0,0 +1,26 @@
+#!/usr/bin/env -S nim r -d:release --verbosity:0 --hints:off
+import math, algorithm
+
+var
+  mem: seq[int]
+  ti: range[0..2] = 0
+
+proc regNum(t: array[3, int]) =
+  let num = (2 ^ t[0]) * (3 ^ t[1]) * (5 ^ t[2])
+
+  if num notin mem:
+    mem.add num
+
+for i in 0..9:
+  for j in 0..i:
+    for k in j..i:
+      var t = [j, k, i]
+      if i == 4: echo (j, k),t
+      regnum(t)
+      while t.nextPermutation():
+        regnum(t)
+      t.sort()
+
+mem.sort()
+for i, v in mem:
+  echo i+1, ": ", v
diff --git a/challenge-003/archargelod/nim/ch_2.nim b/challenge-003/archargelod/nim/ch_2.nim
new file mode 100755
index 0000000000..be2914225a
--- /dev/null
+++ b/challenge-003/archargelod/nim/ch_2.nim
@@ -0,0 +1,47 @@
+#!/usr/bin/env -S nim r -d:release --verbosity:0 --hints:off
+import std/strutils
+
+proc alignTriangle(nums: openArray[int], padLine, padNum: int): string =
+  result = ' '.repeat(padLine * (padNum div 2))
+  for i, num in nums:
+    if i == nums.high:
+      result.add $num
+    else:
+      result.add alignLeft($num, padNum)
+  result.add '\n'
+
+proc pascalTriangle*(n: range[3..67] = 3): string =
+  let padNum = if n > 33: 20 elif n > 20: 10 elif n > 10: 6 elif n > 5: 4 else: 2
+
+  var row = @[1]
+  for i in 2..n:
+    let padLine = n - i + 1
+    result.add row.alignTriangle(padLine, padNum)
+
+    var next: seq[int]
+    for j in 0 ..< i:
+      if j == 0 or j == i-1:
+        next.add 1
+      else:
+        next.add row[j-1] + row[j]
+
+    row = next
+
+  result.add row.alignTriangle(0, padNum)
+
+when isMainModule:
+  import std/[cmdline, rdstdin, options]
+
+  var rows: Option[int]
+  try:
+    if paramCount() == 1:
+      rows = some(parseInt paramStr(1))
+    if rows.isNone():
+      rows = some(parseInt readLineFromStdin("Enter number of rows [3-67]: "))
+  except ValueError as err:
+    quit err.msg
+
+  if rows.get() notin 3..67:
+    quit "Only signed 64-bit numbers are supported. Please enter a number between 3 and 67."
+
+  echo pascalTriangle(rows.get())