Day 1-10

1/.python-version

@@ -0,0 +1 @@
+3.9.5

1/1-1.py

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+import re
+
+
+def get_alpha_regex():
+    return re.compile("[a-zA-Z]")
+
+
+def get_input():
+    regex = get_alpha_regex()
+    with open("one.txt", "r") as f:
+        return [regex.sub("", l) for l in f.read().splitlines()]
+
+
+def get_first_and_last(string):
+    return int(string[0] + string[-1])
+
+
+def main():
+    input = get_input()
+    print(sum(get_first_and_last(i) for i in input))
+
+
+main()
+
+# 57346

1/1-2.py

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+import re
+
+NUMS = {
+    "one": 1,
+    "two": 2,
+    "three": 3,
+    "four": 4,
+    "five": 5,
+    "six": 6,
+    "seven": 7,
+    "eight": 8,
+    "nine": 9,
+}
+
+
+def get_alpha_regex():
+    return re.compile("[a-zA-Z]")
+
+
+def get_input():
+    with open("one.txt", "r") as f:
+        return f.read().splitlines()
+
+
+def sub_nums(input_list):
+    inp = []
+    regex = get_alpha_regex()
+    for i in input_list:
+        i = replace_first_and_last(i)
+        i = regex.sub("", i)
+        inp.append(i)
+    return inp
+
+
+def get_first_or_last(positions, pos):
+    func = max if pos == "last" else min
+    pos = func(positions.keys())
+    return pos, positions[pos]
+
+
+def replace_(string, pos, num):
+    string = list(string)
+    string[pos] = str(num)
+    string = "".join(string)
+    return string
+
+
+def replace_first_and_last(string):
+    num_string_positions = {
+        string.find(i): i for i in NUMS.keys() if string.find(i) != -1
+    }
+    r_num_string_positions = {
+        string.rfind(i): i for i in NUMS.keys() if string.rfind(i) != -1
+    }
+    if not num_string_positions or not r_num_string_positions:
+        return string
+
+    first_pos, first_num = get_first_or_last(num_string_positions, "first")
+    last_pos, last_num = get_first_or_last(r_num_string_positions, "last")
+    string = replace_(string, first_pos, NUMS[first_num])
+    string = replace_(string, last_pos, NUMS[last_num])
+
+    return string
+
+
+def get_first_and_last(string):
+    return int(string[0] + string[-1])
+
+
+def main():
+    input = get_input()
+    input_list = sub_nums(input)
+    print(sum(get_first_and_last(i) for i in input_list))
+
+
+main()
+
+# 57345

1/1-test.txt

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