solve Day04 in python

Day04/python/solution1.py

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+def parse_range(range_str):
+    """Parse a range string into start and end integers."""
+    start, end = map(int, range_str.split('-'))
+    return start, end
+
+def is_contained(range1, range2):
+    """Check if range1 is fully contained within range2."""
+    start1, end1 = range1
+    start2, end2 = range2
+    return start2 <= start1 and end1 <= end2
+
+def count_full_containments(file_path):
+    """Count how many times one range in a pair fully contains the other."""
+    count = 0
+    try:
+        with open(file_path, 'r') as file:
+            for line in file:
+                range1_str, range2_str = line.strip().split(',')
+                range1 = parse_range(range1_str)
+                range2 = parse_range(range2_str)
+
+                if is_contained(range1, range2) or is_contained(range2, range1):
+                    count += 1
+    except FileNotFoundError:
+        print(f"Error: File not found - {file_path}")
+    except ValueError:
+        print(f"Error: Invalid format in line - {line}")
+    except Exception as e:
+        print(f"An unexpected error occurred: {e}")
+    return count
+
+def run_test():
+    """Run tests using test.txt and assert the expected outcomes."""
+    test_result = count_full_containments('../test.txt')
+    print(f"Test Result: {test_result}")
+    assert test_result == 2, f"Test failed: Expected 2, got {test_result}"
+    print("Test passed successfully.")
+
+def main():
+    """Main function to run the test and then process input.txt."""
+    run_test()
+    result = count_full_containments('../input.txt')
+    print(f"Result from input.txt: {result}")
+
+if __name__ == "__main__":
+    main()

Day04/python/solution2.py

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+def parse_range(range_str):
+    """Parse a range string into start and end integers."""
+    start, end = map(int, range_str.split('-'))
+    return start, end
+
+def has_overlap(range1, range2):
+    """Check if range1 overlaps with range2."""
+    start1, end1 = range1
+    start2, end2 = range2
+    return start1 <= end2 and start2 <= end1
+
+def count_overlaps(file_path):
+    """Count how many pairs have overlapping ranges."""
+    count = 0
+    try:
+        with open(file_path, 'r') as file:
+            for line in file:
+                range1_str, range2_str = line.strip().split(',')
+                range1 = parse_range(range1_str)
+                range2 = parse_range(range2_str)
+
+                if has_overlap(range1, range2):
+                    count += 1
+    except FileNotFoundError:
+        print(f"Error: File not found - {file_path}")
+    except ValueError:
+        print(f"Error: Invalid format in line - {line}")
+    except Exception as e:
+        print(f"An unexpected error occurred: {e}")
+    return count
+
+def run_test():
+    """Run tests using test.txt and assert the expected outcomes."""
+    test_result = count_overlaps('../test.txt')
+    print(f"Test Result: {test_result}")
+    assert test_result == 4, f"Test failed: Expected 4, got {test_result}"
+    print("Test passed successfully.")
+
+def main():
+    """Main function to run the test and then process input.txt."""
+    run_test()
+    result = count_overlaps('../input.txt')
+    print(f"Result from input.txt: {result}")
+
+if __name__ == "__main__":
+    main()