Refactor Count Items Matching a Rule to new directory structure

problems/easy/count_items_matching_a_rule_1773/solution.py

@@ -0,0 +1,33 @@
+# Tags: Array, String
+from typing import List
+
+
+class Solution:
+    def count_matches(self, items: List[List[str]], rule_key: str, rule_value: str) -> int:
+        """
+        Count the number of items that match the given rule.
+
+        Args:
+            items: List of items where each item is [type, color, name]
+            rule_key: The key to match against ('type', 'color', or 'name')
+            rule_value: The value to match
+
+        Returns:
+            Number of items matching the rule
+
+        Time complexity: O(n) where n is the number of items
+        - Single loop through all items: O(n)
+        - Each iteration does constant time comparisons: O(1)
+
+        Space complexity: O(1)
+        - Only uses a single counter variable (res)
+        """
+        res = 0
+        for item in items:
+            if rule_key == 'type' and item[0] == rule_value:
+                res += 1
+            elif rule_key == 'color' and item[1] == rule_value:
+                res += 1
+            elif rule_key == 'name' and item[2] == rule_value:
+                res += 1
+        return res

problems/easy/count_items_matching_a_rule_1773/test_solution.py

@@ -0,0 +1,15 @@
+import pytest
+from tests.base_test import BaseTestSolution
+from .solution import Solution
+
+
+class TestSolution(BaseTestSolution):
+    solution = Solution()
+
+    @pytest.mark.parametrize("method_name, items, rule_key, rule_value, expected, timeout", [
+        ('count_matches', [["phone", "blue", "pixel"], ["computer", "silver", "lenovo"], ["phone", "gold", "iphone"]],
+         "color", "silver", 1, None),
+        ('count_matches', [["phone", "blue", "pixel"], ["computer", "silver", "lenovo"], ["phone", "gold", "iphone"]],
+         "type", "phone", 2, None)])
+    def test_count_matches(self, method_name, items, rule_key, rule_value, expected, timeout):
+        self._run_test(self.solution, method_name, (items, rule_key, rule_value,), expected, timeout)