aoc 2023 01

2023/01/main.py

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+
+#! Part 1
+
+input_file = open("input.txt", "r")
+sum = 0
+
+for line in input_file.readlines():
+	left = -1
+	right = -1
+
+	for i in range(len(line)):
+		if line[i].isdigit():
+			if left == -1:
+				left = i
+			right = max(right, i)
+	# print(str(line) + ": " + str(int(str(line[left]) + str(line[right]))) + "\n")
+	sum += int(str(line[left]) + str(line[right]))
+print("Part 1: " + str(sum))
+
+
+
+#! Part 2
+# I am not proud of this solutions asymptotic runtime, but it works!
+
+input_file = open("input.txt", "r")
+sum = 0
+digits_as_str = {"zero": "z0o", "one": "o1e", "two": "t2o", "three": "t3e", "four": "f4r", "five": "f5e", "six": "s6x", "seven": "s7n", "eight": "e8t", "nine": "n9e"}
+
+for line in input_file.readlines():
+	for digit_str in digits_as_str:
+		line = line.replace(digit_str, str(digits_as_str[digit_str]))
+
+	left = -1
+	right = -1
+
+	for i in range(len(line)):
+		if line[i].isdigit():
+			if left == -1:
+				left = i
+			right = max(right, i)
+	# print(str(line) + ": " + str(int(str(line[left]) + str(line[right]))) + "\n")
+	sum += int(str(line[left]) + str(line[right]))
+print("Part 2: " + str(sum))

2023/01/test_input.txt

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+1abc2
+pqr3stu8vwx
+a1b2c3d4e5f
+treb7uchet

2023/01/test_input2.txt

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+two1nine
+eightwothree
+abcone2threexyz
+xtwone3four
+4nineeightseven2
+zoneight234
+7pqrstsixteen