Implement current 2019 AoC solutions in Nim

1 files changed, 30 insertions, 0 deletions

diff --git a/2019/eight.nim b/2019/eight.nim
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--- /dev/null
+++ b/2019/eight.nim
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+# Day Eight: Space Image Format
+import os, strutils, sequtils
+
+let
+  input: string = paramStr(1)
+  digits: string = strip(readFile(input))
+  width: int = 25
+  height: int = 6
+  depth: int = len(digits) div (width * height)
+
+var min, product: int = width * height
+for layer in distribute(@digits, depth):
+  if count(layer, '0') < min:
+    min = count(layer, '0')
+    product = count(layer, '1') * count(layer, '2')
+echo product
+
+for column in 0 ..< height:
+  for row in 0 ..< width:
+    for layer in 0 ..< depth:
+      case digits[(layer * height * width) + (column * width) + row]
+      of '0':
+        write(stdout, ' ')
+        break
+      of '1':
+        write(stdout, 'X')
+        break
+      else:
+        discard
+  write(stdout, '\n')