Day One

2 files changed, 211 insertions, 0 deletions

diff --git a/2020/input/one.txt b/2020/input/one.txt
new file mode 100644
index 0000000..7d5271b
--- /dev/null
+++ b/2020/input/one.txt
@@ -0,0 +1,200 @@
+1826
+1895
+1427
+1931
+1651
+1638
+1507
+1999
+1886
+1824
+1902
+1995
+1945
+1735
+1823
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+2010
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+1932
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diff --git a/2020/one.nim b/2020/one.nim
new file mode 100644
index 0000000..f136ed3
--- /dev/null
+++ b/2020/one.nim
@@ -0,0 +1,11 @@
+import os, strutils
+
+let input = paramStr(1)
+
+for one in lines(input):
+  for two in lines(input):
+    if parseInt(one) + parseInt(two) == 2020:
+      echo parseInt(one) * parseInt(two)
+    for three in lines(input):
+      if parseInt(one) + parseInt(two) + parseInt(three) == 2020:
+        echo parseInt(one) * parseInt(two) * parseInt(three)