chore: create new project structure and aoc.py runner script

adventofcode/2020/day2/part1.py

@@ -0,0 +1,24 @@
+#! /usr/bin/env python3
+
+
+def parse_line(line):
+    repeat_range, letter, pwd = line.split(' ')
+    letter = letter[0]
+    repeat_min, repeat_max = repeat_range.split('-')
+    repeat_min, repeat_max = int(repeat_min), int(repeat_max)
+    return letter, range(repeat_min, repeat_max + 1), pwd
+
+
+def test_password(line):
+    letter, repeat_range, pwd = parse_line(line)
+    count = pwd.count(letter)
+    return count in repeat_range
+
+
+def main(passwds):
+    valid_counter = 0
+    for l in passwds:
+        if test_password(l):
+            valid_counter += 1
+    print(f"Number of  valid password in input : {valid_counter}")
+