test: migrate LeetCode 2828 to new directory structure with tests and docs

README.md

@@ -41,11 +41,11 @@ Each problem follows this structure:
 
 ## Solutions
 
-📊 **Statistics**: 83 problems solved (migrated to new structure)
+📊 **Statistics**: 84 problems solved (migrated to new structure)
 
 | Difficulty | Count |
 |------------|-------|
-| Easy       | 58    |
+| Easy       | 59    |
 | Medium     | 24    |
 | Hard       | 1     |
 

docs/EASY.md

@@ -1,6 +1,6 @@
 # Easy Problems
 
-Total: 58 problems solved
+Total: 59 problems solved
 
 ## Solutions
 
@@ -61,6 +61,7 @@ Total: 58 problems solved
 | 2469 | [Convert the Temperature](https://leetcode.com/problems/convert-the-temperature/) | [solution.py](../problems/easy/convert_the_temperature_2469/solution.py) | [test_solution.py](../problems/easy/convert_the_temperature_2469/test_solution.py) |
 | 2710 | [Remove Trailing Zeros From a String](https://leetcode.com/problems/remove-trailing-zeros-from-a-string/) | [solution.py](../problems/easy/remove_trailing_zeros_from_a_string_2710/solution.py) | [test_solution.py](../problems/easy/remove_trailing_zeros_from_a_string_2710/test_solution.py) |
 | 2798 | [Number of Employees Who Met the Target](https://leetcode.com/problems/number-of-employees-who-met-the-target/) | [solution.py](../problems/easy/number_of_employees_who_met_the_target_2798/solution.py) | [test_solution.py](../problems/easy/number_of_employees_who_met_the_target_2798/test_solution.py) |
+| 2828 | [Check if a String Is an Acronym of Words](https://leetcode.com/problems/check-if-a-string-is-an-acronym-of-words/) | [solution.py](../problems/easy/check_if_a_string_is_an_acronym_of_words_2828/solution.py) | [test_solution.py](../problems/easy/check_if_a_string_is_an_acronym_of_words_2828/test_solution.py) |
 | 2942 | [Find Words Containing Character](https://leetcode.com/problems/find-words-containing-character/) | [solution.py](../problems/easy/find_words_containing_character_2942/solution.py) | [test_solution.py](../problems/easy/find_words_containing_character_2942/test_solution.py) |
 | 3110 | [Score of a String](https://leetcode.com/problems/score-of-a-string/) | [solution.py](../problems/easy/score_of_a_string_3110/solution.py) | [test_solution.py](../problems/easy/score_of_a_string_3110/test_solution.py) |
 | 3289 | [The Two Sneaky Numbers of Digitville](https://leetcode.com/problems/the-two-sneaky-numbers-of-digitville/) | [solution.py](../problems/easy/the_two_sneaky_numbers_of_digitville_3289/solution.py) | [test_solution.py](../problems/easy/the_two_sneaky_numbers_of_digitville_3289/test_solution.py) |

problems/easy/check_if_a_string_is_an_acronym_of_words_2828/solution.py

@@ -0,0 +1,23 @@
+# Tags: Array, String
+from typing import List
+
+
+class Solution:
+    def is_acronym(self, words: List[str], s: str) -> bool:
+        """
+        Time complexity: O(n)
+        n represents the number of words in the words list
+        Loop through words list and build acronym: O(n)
+        String comparison acronym == s: Python short-circuits at first mismatch,
+        worst case O(min(n, m)) where m = len(s)
+        Since O(min(n, m)) ≤ O(n), overall time complexity is O(n)
+
+        Space complexity: O(n)
+        n represents the number of words in the words list
+        acronym string is formed by taking first character of each word, length is n
+        No other significant space usage
+        """
+        acronym = ''
+        for word in words:
+            acronym += word[0]
+        return acronym == s

problems/easy/check_if_a_string_is_an_acronym_of_words_2828/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, words, s, expected, timeout", [
+        ('is_acronym', ["alice", "bob", "charlie"], "abc", True, None),
+        ('is_acronym', ["an", "apple"], "a", False, None),
+        ('is_acronym', ["never", "gonna", "give", "up", "on", "you"], "ngguoy", True, None),
+    ])
+    def test_is_acronym(self, method_name, words, s, expected, timeout):
+        self._run_test(self.solution, method_name, (words, s,), expected, timeout)