feat: day 3

2022/3/main.py

@@ -0,0 +1,43 @@
+import string
+alphabet = list(string.ascii_lowercase)
+uppercaseAlphabet = list(string.ascii_uppercase)
+
+input = open('input.txt', 'r').read().strip().split('\n')
+
+def part1():
+    sum = 0
+    for i in input:
+        # i can use google right? https://stackoverflow.com/a/4789617
+        firstPart, secondPart = i[:len(i)//2], i[len(i)//2:]
+        firstPartArr, secondPartArr = [*firstPart], [*secondPart]
+        sameChar = [x for x in firstPartArr if x in secondPartArr][:1]
+        sameChar = ''.join(sameChar)
+        
+        sum += getPriority(sameChar)
+
+    return sum
+
+def part2():
+    sum = 0
+    i = [input[i:i+3] for i in range(0, len(input), 3)]
+    for el in i:
+        firstPart, secondPart, thirdPart = el
+        firstPartArr, secondPartArr, thirdPartArr = [*firstPart], [*secondPart], [*thirdPart]
+        sameChar = [x for x in firstPartArr if x in secondPartArr and x in thirdPartArr][:1]
+        sameChar = ''.join(sameChar)
+
+        sum += getPriority(sameChar)
+
+    return sum
+
+def getPriority(char):
+    if char.isupper():
+        # UPPERCASE
+        return uppercaseAlphabet.index(char) + 27
+    else:
+        # lowercase
+        # adding one because we start from zero
+        return alphabet.index(char) + 1
+
+print('Part1:', part1())
+print('Part2:', part2())

2022/template.py

@@ -1,4 +1,4 @@
-input = open('input.txt', 'r').read().split('\n')
+input = open('input.txt', 'r').read().strip().split('\n')
 
 def part1():
     return