Jan 9

Author: siddydutta

2025-01-January-LeetCoding-Challenge/Counting Words With a Given Prefix.py

@@ -0,0 +1,20 @@
+from typing import List
+
+
+class Solution:
+    def prefixCount(self, words: List[str], pref: str) -> int:
+        return sum([word.startswith(pref) for word in words])
+
+
+def main():
+    words = ['pay', 'attention', 'practice', 'attend']
+    pref = 'at'
+    assert Solution().prefixCount(words, pref) == 2
+
+    words = ['leetcode', 'win', 'loops', 'success']
+    pref = 'code'
+    assert Solution().prefixCount(words, pref) == 0
+
+
+if __name__ == '__main__':
+    main()

2025-01-January-LeetCoding-Challenge/README.md

@@ -11,7 +11,7 @@
 | January 6  | [1769. Minimum Number of Operations to Move All Balls to Each Box](https://leetcode.com/problems/minimum-number-of-operations-to-move-all-balls-to-each-box/) | Medium | Solved |
 | January 7  | [1408. String Matching in an Array](https://leetcode.com/problems/string-matching-in-an-array/) | Easy | Solved |
 | January 8  | [3042. Count Prefix and Suffix Pairs I](https://leetcode.com/problems/count-prefix-and-suffix-pairs-i/) | Easy | Solved |
-| January 9  | []() |  |  |
+| January 9  | [2185. Counting Words With a Given Prefix](https://leetcode.com/problems/counting-words-with-a-given-prefix/) | Easy | Solved |
 | January 10 | []() |  |  |
 | January 11 | []() |  |  |
 | January 12 | []() |  |  |
@@ -39,6 +39,6 @@
 ## Summary
 | Level  | Problems | Solved | Unsolved |
 | ---    | --- | --- | --- |
-| Easy   | 3 | 3 | 0 |
+| Easy   | 4 | 4 | 0 |
 | Medium | 5 | 5 | 0 |
 | Hard   | 0 | 0 | 0 |