Init (tm day3)

day1/day1.py

@@ -0,0 +1,4 @@
+
+
+if __name__ == "__main__":
+    print("Hoi Day 1!")

day2/day2.py

@@ -0,0 +1,45 @@
+import os
+import re
+
+def validate_password(line):
+    parts = re.split('([0-9]+)-([0-9]+) ([a-z]): ([a-z]+)', line)
+    lower = int(parts[1])
+    upper = int(parts[2])
+    char = parts[3]
+
+    password = parts[4]
+    password = re.sub('[^%s]'% char, '', parts[4])
+    length = len(password)
+    if(length >= lower and length <= upper):
+        return True
+
+def validate_password_2(line):
+    parts = re.split('([0-9]+)-([0-9]+) ([a-z]): ([a-z]+)', line)
+    lower = int(parts[1]) - 1
+    upper = int(parts[2]) - 1
+    char = parts[3]
+
+    password = parts[4]
+
+    if((password[lower] is char) is not (password[upper] is char)):
+        return True
+
+def part1():
+    count = 0
+    with open("day2/input.txt") as input:  
+        for line in input:  
+            if validate_password(line) == True:
+                count += 1
+    print("Day 1: %d"% count)
+        
+def part2():
+    count = 0
+    with open("day2/input.txt") as input:  
+        for line in input:  
+            if validate_password_2(line) == True:
+                count += 1
+    print("Day 2: %d"% count)
+
+if __name__ == "__main__":
+    part1();
+    part2();

day3/day3.py

@@ -0,0 +1,33 @@
+lines = []
+
+def load():
+    global lines
+    file = open("day3/input.txt")
+    lines = file.readlines()
+
+def trees(right, down):
+    width = 0
+    height = 0
+    line_width = 31
+    count = 0
+
+    while height < len(lines):
+        line = lines[height]
+        if(line[width % line_width] == "#"):
+            count += 1
+        width += right
+        height += down
+
+    return count
+
+def part1():
+    print("Part 1: %d"% trees(3,1))
+
+def part2():
+    count = trees(1,1) * trees(3,1) * trees(5,1) * trees(7,1) * trees(1,2)
+    print("Part 2: %d" % count)
+
+if __name__ == "__main__":
+    load()
+    part1()
+    part2()

day3/input.txt

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