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Task/Sorting-algorithms-Bead-sort/Nim/sorting-algorithms-bead-sort.nim

@@ -0,0 +1,30 @@
+proc beadSort[T](a: var openarray[T]) =
+  var max = low(T)
+  var sum = 0
+
+  for x in a:
+    if x > max: max = x
+
+  var beads = newSeq[int](max * a.len)
+
+  for i in 0 .. < a.len:
+    for j in 0 .. < a[i]:
+      beads[i * max + j] = 1
+
+  for j in 0 .. < max:
+    sum = 0
+    for i in 0 .. < a.len:
+      sum += beads[i * max + j]
+      beads[i * max + j] = 0
+
+    for i in a.len - sum .. < a.len:
+      beads[i * max + j] = 1
+
+  for i in 0 .. < a.len:
+    var j = 0
+    while j < max and beads[i * max + j] > 0: inc j
+    a[i] = j
+
+var a = @[5, 3, 1, 7, 4, 1, 1, 20]
+beadSort a
+echo a