Solve day5

day5/part1.py

@@ -0,0 +1,27 @@
+FILE = "input.txt"
+
+def main():
+    freshRanges = []
+    indgredients = []
+    complete = False
+    for line in open(FILE):
+        if line == "\n":
+            complete = True
+            continue
+        if not complete:
+            freshRanges.append(line.strip().split("-"))
+        else:
+            indgredients.append(line.strip())
+    freshRanges = [
+        range(int(start), int(stop)+1) for (start, stop) in freshRanges
+    ]
+    indgredients = [ int(x) for x in indgredients ]
+    return len([
+        indgredient
+        for indgredient in indgredients
+        if any(indgredient in r for r in freshRanges)
+    ])
+
+
+if __name__ == "__main__":
+    print(main())

day5/part2.py

@@ -0,0 +1,22 @@
+FILE = "input.txt"
+
+def main():
+    ranges = []
+    for line in open(FILE):
+        if line == "\n": break
+        ranges.append(line.strip().split("-"))
+    ranges = sorted([
+        (int(start), int(stop)+1) for (start, stop) in ranges
+    ], key=lambda x: x[0])
+    condensed = [ranges[0]]
+    for r in ranges:
+        end = condensed[-1][1]
+        if r[0] <= end < r[1]:
+            condensed[-1] = (condensed[-1][0], r[1])
+        elif end < r[0]:
+            condensed.append(r)
+    return sum(len(range(r[0], r[1])) for r in condensed)
+
+
+if __name__ == "__main__":
+    print(main())

day5/test.txt

@@ -0,0 +1,11 @@
+3-5
+10-14
+16-20
+12-18
+
+1
+5
+8
+11
+17
+32