2 files changed, 87 insertions, 0 deletions
diff --git a/challenge-266/luca-ferrari/python/ch-1.py b/challenge-266/luca-ferrari/python/ch-1.py
new file mode 100644
index 0000000000..3d5f542714
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+++ b/challenge-266/luca-ferrari/python/ch-1.py
@@ -0,0 +1,52 @@
+#!python
+
+#
+# Perl Weekly Challenge 266
+# Task 1
+#
+# See <https://perlweeklychallenge.org/blog/perl-weekly-challenge-266>
+#
+
+import sys
+
+# task implementation
+# the return value will be printed
+def task_1( args ):
+    left  = args[ 0 ]
+    right = args[ 1 ]
+
+    bag_left  = {}
+    bag_right = {}
+
+    # classify
+    for w in left.split():
+        c = 1
+        w = w.lower()
+        if w in bag_left:
+            c += bag_left[ w ]
+
+        bag_left[ w ] = c
+
+    for w in right.split():
+        c = 1
+        w = w.lower()
+        if w in bag_right:
+            c += bag_right[ w ]
+
+        bag_right[ w ] = c
+
+    words = []
+    for w in bag_left:
+        if bag_left[ w ] == 1 and not w in bag_right:
+            words.append( w )
+
+    for w in bag_right:
+        if bag_right[ w ] == 1 and not w in bag_left:
+            words.append( w )
+
+    return words
+
+
+# invoke the main without the command itself
+if __name__ == '__main__':
+    print( task_1( sys.argv[ 1: ] ) )
diff --git a/challenge-266/luca-ferrari/python/ch-2.py b/challenge-266/luca-ferrari/python/ch-2.py
new file mode 100644
index 0000000000..7b5ce0d896
--- /dev/null
+++ b/challenge-266/luca-ferrari/python/ch-2.py
@@ -0,0 +1,35 @@
+#!python
+
+#
+# Perl Weekly Challenge 266
+# Task 2
+#
+# See <https://perlweeklychallenge.org/blog/perl-weekly-challenge-266>
+#
+
+import sys
+
+# task implementation
+# the return value will be printed
+def task_2( matrix ):
+    size = len( matrix[ 0 ] )
+    for row in range( 0, size ):
+        for col in range( 0, size ):
+            if row == col or col == size - row - 1:
+                if matrix[ row ][ col ] == 0:
+                    return 'False'
+            elif matrix[ row ][ col ] != 0:
+                return 'False'
+    return 'True'
+
+
+
+# invoke the main without the command itself
+if __name__ == '__main__':
+    matrix = [
+        [1, 0, 0, 2],
+        [0, 3, 4, 0],
+        [0, 5, 6, 0],
+        [7, 0, 0, 1],
+    ]
+    print( task_2( matrix ) )