From 4395943a514d0274f5b7adb42baf951546a49340 Mon Sep 17 00:00:00 2001
From: Pok <pok@goyangi>
Date: Mon, 2 Jun 2025 19:42:43 +1000
Subject: pwc324 solution in python

---
 challenge-324/pokgopun/python/ch-2.py | 76 +++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 challenge-324/pokgopun/python/ch-2.py

(limited to 'challenge-324/pokgopun/python/ch-2.py')

diff --git a/challenge-324/pokgopun/python/ch-2.py b/challenge-324/pokgopun/python/ch-2.py
new file mode 100644
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+++ b/challenge-324/pokgopun/python/ch-2.py
@@ -0,0 +1,76 @@
+### https://theweeklychallenge.org/blog/perl-weekly-challenge-324/
+"""
+
+Task 2: Total XOR
+
+Submitted by: [43]Mohammad Sajid Anwar
+     __________________________________________________________________
+
+   You are given an array of integers.
+
+   Write a script to return the sum of total XOR for every subset of given
+   array.
+
+Example 1
+
+Input: @ints = (1, 3)
+Output: 6
+
+Subset [1],    total XOR = 1
+Subset [3],    total XOR = 3
+Subset [1, 3], total XOR => 1 XOR 3 => 2
+
+Sum of total XOR => 1 + 3 + 2 => 6
+
+Example 2
+
+Input: @ints = (5, 1, 6)
+Output: 28
+
+Subset [5],       total XOR = 5
+Subset [1],       total XOR = 1
+Subset [6],       total XOR = 6
+Subset [5, 1],    total XOR => 5 XOR 1 => 4
+Subset [5, 6],    total XOR => 5 XOR 6 => 3
+Subset [1, 6],    total XOR => 1 XOR 6 => 7
+Subset [5, 1, 6], total XOR => 5 XOR 1 XOR 6 => 2
+
+Sum of total XOR => 5 + 1 + 6 + 4 + 3 + 7 + 2 => 28
+
+Example 3
+
+Input: @ints = (3, 4, 5, 6, 7, 8)
+Output: 480
+     __________________________________________________________________
+
+   Last date to submit the solution 23:59 (UK Time) Sunday 8th June 2025.
+     __________________________________________________________________
+
+SO WHAT DO YOU THINK ?
+"""
+### solution by pokgopun@gmail.com
+
+from itertools import combinations
+
+def txor(ints: tuple[int]) -> int:
+    tx = 0
+    for r in range(len(ints)):
+        for cmb in combinations(ints,r+1):
+            x = cmb[0]
+            for n in cmb[1:]:
+                x ^= n
+            tx += x
+    return tx
+
+import unittest
+
+class TestTxor(unittest.TestCase):
+    def test(self):
+        for inpt, otpt in {
+                (1, 3): 6,
+                (5, 1, 6): 28,
+                (3, 4, 5, 6, 7, 8): 480,
+                }.items():
+            self.assertEqual(txor(inpt), otpt)
+
+unittest.main()
-- 
cgit