Fixed exercise 81 and added 74

leetcode/74_search_a_2d_matrix.py

@@ -0,0 +1,33 @@
+import pytest
+
+
+class Solution:
+    def searchMatrix(self, matrix: list[list[int]], target: int) -> bool:
+        rows, cols = len(matrix), len(matrix[0])
+        left, right = 0, rows * cols - 1
+        while left <= right:
+            mid = left + (right - left) // 2
+
+            val = matrix[mid // cols][mid % cols]
+            if val == target:
+                return True
+            elif val < target:
+                left = mid + 1
+            else:
+                right = mid - 1
+        return False
+
+
+@pytest.fixture
+def solution():
+    return Solution()
+
+
+@pytest.mark.parametrize(
+    "matrix, target, expected",
+    [([[1, 3, 5, 7], [10, 11, 16, 20], [23, 30, 34, 60]], 3, True)],
+)
+def test_search(
+    solution: Solution, matrix: list[list[int]], target: int, expected: bool
+):
+    assert solution.searchMatrix(matrix, target) == expected

leetcode/81_search_in_rotated_sorted_array_ii.py

@@ -5,18 +5,20 @@ class Solution:
     def search(self, nums: list[int], target: int) -> bool:
         low, high = 0, len(nums) - 1
         while low <= high:
-            breakpoint()
             mid = low + (high - low) // 2
             if nums[mid] == target:
                 return True
 
+            while low < mid and nums[low] == nums[mid]:
+                low += 1
+
             if nums[mid] >= nums[low]:
-                if nums[low] <= target <= nums[mid]:
+                if nums[low] <= target < nums[mid]:
                     high = mid - 1
                 else:
                     low = mid + 1
             else:
-                if nums[mid] <= target <= nums[high]:
+                if nums[mid] < target <= nums[high]:
                     low = mid + 1
                 else:
                     high = mid - 1
@@ -32,8 +34,8 @@ def solution():
 @pytest.mark.parametrize(
     "nums, target, expected",
     [
-        # ([2, 5, 6, 0, 0, 1, 2], 0, True),
+        ([2, 5, 6, 0, 0, 1, 2], 0, True),
-        # ([2, 5, 6, 0, 0, 1, 2], 3, False),
+        ([2, 5, 6, 0, 0, 1, 2], 3, False),
         ([1, 0, 1, 1, 1], 0, True),
     ],
 )