weeks 41-47, 260, 261 in Nim

2 files changed, 61 insertions, 0 deletions

diff --git a/challenge-261/archargelod/nim/ch_1.nim b/challenge-261/archargelod/nim/ch_1.nim
new file mode 100755
index 0000000000..f73a60dca6
--- /dev/null
+++ b/challenge-261/archargelod/nim/ch_1.nim
@@ -0,0 +1,31 @@
+#!/usr/bin/env -S nim r -d:release --verbosity:0 --hints:off
+import std/sequtils
+
+proc diffElementDigitSums(numbers: openArray[int]): int =
+  for num in numbers:
+    if num < 10: continue
+    let digitSum = ($num).mapIt(it.ord - '0'.ord).foldl(a+b)
+    result += num - digitSum
+
+
+when isMainModule:
+  import std/unittest
+
+  const
+    Test = [
+      @[1,2,3,45],
+      @[1,12,3],
+      @[1,2,3,4],
+      @[236, 416, 336, 350],
+    ]
+    Expected = [36, 9, 0, 1296]
+
+  suite "Element Digit Sum":
+    test "Example 1":
+      check diffElementDigitSums(Test[0]) == Expected[0]
+    test "Example 2":
+      check diffElementDigitSums(Test[1]) == Expected[1]
+    test "Example 3":
+      check diffElementDigitSums(Test[2]) == Expected[2]
+    test "Example 4":
+      check diffElementDigitSums(Test[3]) == Expected[3]
diff --git a/challenge-261/archargelod/nim/ch_2.nim b/challenge-261/archargelod/nim/ch_2.nim
new file mode 100755
index 0000000000..36d8badb5d
--- /dev/null
+++ b/challenge-261/archargelod/nim/ch_2.nim
@@ -0,0 +1,30 @@
+#!/usr/bin/env -S nim r -d:release --verbosity:0 --hints:off
+
+proc searchThenDoubleRepeat(numbers: openarray[int], value: int): int =
+  result = value
+  while true:
+    block lookingForValue:
+      for num in numbers:
+        if num == result:
+          result *= 2
+          break lookingForValue
+      return
+
+when isMainModule:
+  import std/unittest
+
+  const
+    Test: array[3, tuple[arr: seq[int], value: int]] = [
+      (@[5,3,6,1,12], 3),
+      (@[1,2,4,3], 1),
+      (@[5,6,7], 2),
+    ]
+    Expected = [24, 8, 2]
+
+  suite "Multiply by Two":
+    test "Example 1":
+      check Test[0].arr.searchThenDoubleRepeat(Test[0].value) == Expected[0]
+    test "Example 2":
+      check Test[1].arr.searchThenDoubleRepeat(Test[1].value) == Expected[1]
+    test "Example 3":
+      check Test[2].arr.searchThenDoubleRepeat(Test[2].value) == Expected[2]