1 files changed, 44 insertions, 0 deletions
diff --git a/challenge-270/lubos-kolouch/python/ch-1.py b/challenge-270/lubos-kolouch/python/ch-1.py
new file mode 100644
index 0000000000..08a785afbd
--- /dev/null
+++ b/challenge-270/lubos-kolouch/python/ch-1.py
@@ -0,0 +1,44 @@
+""" Perl Weekly Challenge 270 LK Task 1 Python """
+
+from typing import List
+
+
+def num_special_positions(matrix: List[List[int]]) -> int:
+    """
+    num_special_positions A position (i, j) is called special if $matrix[i][j] == 1 and all other elements in the row i and column j are 0.
+
+    Args:
+        matrix (List[List[int]]): input matrix
+
+    Returns:
+        int: count of special positions
+    """
+
+    rows = len(matrix)
+    cols = len(matrix[0])
+
+    def is_special(i: int, j: int) -> bool:
+        for x in range(rows):
+            if x != i and matrix[x][j] == 1:
+                return False
+        for y in range(cols):
+            if y != j and matrix[i][y] == 1:
+                return False
+        return True
+
+    special_count = 0
+    for i in range(rows):
+        for j in range(cols):
+            if matrix[i][j] == 1 and is_special(i, j):
+                special_count += 1
+
+    return special_count
+
+
+# Example 1
+matrix1 = [[1, 0, 0], [0, 0, 1], [1, 0, 0]]
+assert num_special_positions(matrix1) == 1
+
+# Example 2
+matrix2 = [[1, 0, 0], [0, 1, 0], [0, 0, 1]]
+assert num_special_positions(matrix2) == 3