Skeleton for day 4

2024/01/solution.py

@@ -1,6 +1,7 @@
 from aocd import get_data
 data = get_data(day=1, year=2024)
 
+# Condition data
 list1 = []
 list2 = []
 lines = data.split("\n")
@@ -13,9 +14,7 @@ for line in lines:
 list1.sort()
 list2.sort()
 
-# for i in range(len(list1)):
+# Part 1
-#       print(list1[i], list2[i])
-
 total_dist = 0
 for i in range(len(list1)):
 	dist = list2[i] - list1[i]
@@ -24,6 +23,7 @@ for i in range(len(list1)):
 
 print("Total distance: ", total_dist)
 
+# Part 2
 total_similarity = 0
 for i in range(len(list1)):
 	num = list1[i]

2024/02/solution.py

@@ -1,5 +1,7 @@
 from aocd import get_data
 data = get_data(day=2, year=2024)
+
+# Condition data
 lines = data.split("\n")
 reports = []
 for line in lines:
@@ -10,6 +12,7 @@ for line in lines:
 total_safe = 0
 safe_nums = [1, 2, 3]
 
+# Part 1
 for report in reports:
 	dists = [report[i+1] - report[i] for i in range(len(report)) if i != len(report) - 1]
 	# dists is either all positive or all negative (checks all increasing or all decreasing)
@@ -20,6 +23,7 @@ for report in reports:
 
 print("Total safe reports: ", total_safe)
 
+# Part 2
 total_safe_tolerance = 0
 for report in reports:
 	print("Checking report: ", report)

2024/03/solution.py

@@ -3,38 +3,25 @@ import re
 
 data = get_data(day=3, year=2024)
 
-def part_one():
+# Part one
-	regex = r"mul\((\d+),(\d+)\)"
+matches = re.findall(r"mul\((\d+),(\d+)\)", data)
-	matches = re.findall(regex, data, re.MULTILINE)
-
 total = 0
 for match in matches:
 	total += int(match[0]) * int(match[1])
 print(total)
 
-def part_two():
+# One-liner
-	mul_regex = r"mul\((\d+),(\d+)\)"
+# print(sum(int(x) * int(y) for x, y in re.findall(r"mul\((\d+),(\d+)\)", data)))
-	do_str = "do()"
-	dont_str = "don't()"
-
-	matches = re.finditer(mul_regex, data, re.MULTILINE)
 
+# Part two
+matches = re.finditer(r"mul\((\d+),(\d+)\)", data)
 total = 0
 for match in matches:
 	start = match.start()
-		do_match = data.rfind(do_str, 0, start)
+	do_match = data.rfind("do()", 0, start)
-		dont_match = data.rfind(dont_str, 0, start)
+	dont_match = data.rfind("don't()", 0, start)
-
 	if do_match == dont_match == -1: # Neither
 		total += int(match.group(1)) * int(match.group(2))
-			continue
+	elif do_match > dont_match: # Do
-		if do_match > dont_match: # Do
 		total += int(match.group(1)) * int(match.group(2))
-			continue
-		else: # Don't
-			continue
-
 print(total)
-
-part_one()
-part_two()

2024/04/solution.py

@@ -0,0 +1,3 @@
+from aocd import get_data
+data = get_data(day=4, year=2024)
+