Added day 2020-09

Author: Piratmac

2020/09-Encoding Error.py

@@ -0,0 +1,130 @@
+# -------------------------------- Input data ---------------------------------------- #
+import os, grid, graph, dot, assembly, re, itertools
+from collections import Counter, deque, defaultdict
+
+from compass import *
+
+
+# This functions come from https://github.com/mcpower/adventofcode - Thanks!
+def lmap(func, *iterables):
+    return list(map(func, *iterables))
+
+
+def ints(s: str):
+    return lmap(int, re.findall(r"-?\d+", s))  # thanks mserrano!
+
+
+def positive_ints(s: str):
+    return lmap(int, re.findall(r"\d+", s))  # thanks mserrano!
+
+
+def floats(s: str):
+    return lmap(float, re.findall(r"-?\d+(?:\.\d+)?", s))
+
+
+def positive_floats(s: str):
+    return lmap(float, re.findall(r"\d+(?:\.\d+)?", s))
+
+
+def words(s: str):
+    return re.findall(r"[a-zA-Z]+", s)
+
+
+test_data = {}
+
+test = 1
+test_data[test] = {
+    "input": """35
+20
+15
+25
+47
+40
+62
+55
+65
+95
+102
+117
+150
+182
+127
+219
+299
+277
+309
+576""",
+    "expected": ["127", "62"],
+}
+
+test = "real"
+input_file = os.path.join(
+    os.path.dirname(__file__),
+    "Inputs",
+    os.path.basename(__file__).replace(".py", ".txt"),
+)
+test_data[test] = {
+    "input": open(input_file, "r+").read(),
+    "expected": ["1504371145", "183278487"],
+}
+
+
+# -------------------------------- Control program execution ------------------------- #
+
+case_to_test = "real"
+part_to_test = 2
+
+# -------------------------------- Initialize some variables ------------------------- #
+
+puzzle_input = test_data[case_to_test]["input"]
+puzzle_expected_result = test_data[case_to_test]["expected"][part_to_test - 1]
+puzzle_actual_result = "Unknown"
+
+
+# -------------------------------- Actual code execution ----------------------------- #
+
+preamble = 25 if case_to_test == "real" else 5
+
+numbers = ints(puzzle_input)
+sums = []
+for vals in itertools.combinations(numbers[:preamble], 2):
+    sums.append(sum(vals))
+
+i = 0
+while True:
+    sums = []
+    for vals in itertools.combinations(numbers[i : i + preamble], 2):
+        sums.append(sum(vals))
+    if numbers[i + preamble] not in sums:
+        puzzle_actual_result = numbers[i + preamble]
+        break
+    i += 1
+
+if part_to_test == 2:
+    invalid_number = puzzle_actual_result
+    puzzle_actual_result = "Unknown"
+
+    for a in range(len(numbers)):
+        number_sum = numbers[a]
+        if number_sum < invalid_number:
+            for b in range(1, len(numbers) - a):
+                number_sum += numbers[a + b]
+                print(a, b, number_sum, invalid_number)
+                if number_sum == invalid_number:
+                    puzzle_actual_result = min(numbers[a : a + b + 1]) + max(
+                        numbers[a : a + b + 1]
+                    )
+                    break
+                if number_sum > invalid_number:
+                    break
+            if puzzle_actual_result != "Unknown":
+                break
+
+# -------------------------------- Outputs / results --------------------------------- #
+
+print("Case :", case_to_test, "- Part", part_to_test)
+print("Expected result : " + str(puzzle_expected_result))
+print("Actual result   : " + str(puzzle_actual_result))
+# Date created: 2020-12-09 06:14:55.183250
+# Solve part 1: 2020-12-09 06:20:49
+# Solve part 2: 2020-12-09 06:29:07