Day 1 2020

Author: valeriecodes

Diff for: .gitignore

@@ -1,2 +1,3 @@
 day_23.rb
 day_23_input.txt
+*.txt

Diff for: 2020/1.py

@@ -0,0 +1,30 @@
+from functools import reduce
+
+f = open("day1input.txt", "r")
+items = list(map(int, f.read().rstrip().split("\n")))
+
+# Part 1
+def find_result(items):
+  result1 = None
+  result2 = None
+  for i in range(len(items) - 1):
+    for j in range(i + 1, len(items)):
+      if items[i] + items[j] == 2020:
+        result1, result2 = items[i], items[j]
+  return [result1, result2]
+
+print(reduce((lambda x, y: x * y), find_result(items)))
+
+# Part 2
+def find_triple_result(items):
+  result1 = None
+  result2 = None
+  result3 = None
+  for i in range(len(items) - 2):
+    for j in range(i + 1, len(items) - 1):
+      for k in range(j + 1, len(items)):
+        if items[i] + items[j] + items[k] == 2020:
+          result1, result2, result3 = items[i], items[j], items[k]
+  return [result1, result2, result3]
+
+print(reduce((lambda x, y: x * y), find_triple_result(items)))