2022: Day 1 - 4

2022/day4_2.py

@@ -0,0 +1,30 @@
+
+## Read input file
+input = []
+with open('day4_input.txt', 'r') as f:
+    for line in f.readlines():
+        input.append(line)
+
+
+# Solve problem
+def run():
+    count = 0
+
+    for line in input:
+        first, second = line.split(',')
+        first = make_range(first)
+        second = make_range(second)
+
+        if overlaps(first, second) or overlaps(second, first):
+            count += 1
+
+    print(count)
+
+def make_range( a ):
+    return tuple(int(i) for i in a.split('-'))
+
+def overlaps( r1, r2 ):
+    return not (r2[1] < r1[0] or r2[0] > r1[1])
+
+if __name__ == '__main__':
+    run()