day 9

09/1.py

@@ -0,0 +1,5 @@
+nums = [int(l) for l in open("input", "r").read().split("\n") if l]
+msg = nums[25:]
+withpre = [(n, nums[i:i+25]) for (i, n) in enumerate(msg)]
+invalid = [n for (n, pre) in withpre if not any([True for x in pre if (n - x) in pre])]
+print(invalid)

09/2.py

@@ -0,0 +1,5 @@
+nums = [int(l) for l in open("input", "r").read().split("\n") if l]
+target = 542529149
+sets = sum([[nums[i:x] for x in range(i+2, len(nums))] for (i, n) in enumerate(nums)], [])
+valid = [min(s) + max(s) for s in sets if sum(s) == target]
+print(valid)

09/test

@@ -0,0 +1,20 @@
+35
+20
+15
+25
+47
+40
+62
+55
+65
+95
+102
+117
+150
+182
+127
+219
+299
+277
+309
+576