Feb 1

Author: siddydutta

2025-02-February-LeetCoding-Challenge/README.md

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+# February-LeetCoding-Challenge-2025
+
+
+## Questions
+| Day | Problem | Level | Status |
+| --- | --- | --- | --- |
+| February 01 | [3151. Special Array I](https://leetcode.com/problems/special-array-i/) | Easy | Solved |
+| February 02 | []() |  |  |
+| February 03 | []() |  |  |
+| February 04 | []() |  |  |
+| February 05 | []() |  |  |
+| February 06 | []() |  |  |
+| February 07 | []() |  |  |
+| February 08 | []() |  |  |
+| February 09 | []() |  |  |
+| February 10 | []() |  |  |
+| February 11 | []() |  |  |
+| February 12 | []() |  |  |
+| February 13 | []() |  |  |
+| February 14 | []() |  |  |
+| February 15 | []() |  |  |
+| February 16 | []() |  |  |
+| February 17 | []() |  |  |
+| February 18 | []() |  |  |
+| February 19 | []() |  |  |
+| February 20 | []() |  |  |
+| February 21 | []() |  |  |
+| February 22 | []() |  |  |
+| February 23 | []() |  |  |
+| February 24 | []() |  |  |
+| February 25 | []() |  |  |
+| February 26 | []() |  |  |
+| February 27 | []() |  |  |
+| February 28 | []() |  |  |
+
+
+## Summary
+| Level  | Problems | Solved | Unsolved |
+| ---    | --- | --- | --- |
+| Easy   | 1 | 1 | 0 |
+| Medium | 0 | 0 | 0 |
+| Hard   | 0 | 0 | 0 |

2025-02-February-LeetCoding-Challenge/Special Array I.py

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+from itertools import pairwise
+from typing import List
+
+
+class Solution:
+    def isArraySpecial(self, nums: List[int]) -> bool:
+        return not any(i & 1 == j & 1 for i, j in pairwise(nums))
+
+
+def main():
+    nums = [1]
+    assert Solution().isArraySpecial(nums) is True
+
+    nums = [2, 1, 4]
+    assert Solution().isArraySpecial(nums) is True
+
+    nums = [4, 3, 1, 6]
+    assert Solution().isArraySpecial(nums) is False
+
+
+if __name__ == '__main__':
+    main()