Merge remote-tracking branch 'upstream/master'

1 files changed, 25 insertions, 0 deletions

diff --git a/challenge-059/lubos-kolouch/python/ch-2.py b/challenge-059/lubos-kolouch/python/ch-2.py
new file mode 100644
index 0000000000..f482a546d6
--- /dev/null
+++ b/challenge-059/lubos-kolouch/python/ch-2.py
@@ -0,0 +1,25 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+from typing import List
+
+
+def count_different_bits(a: int, b: int) -> int:
+    count = 0
+    while a > 0 or b > 0:
+        count += (a % 2) ^ (b % 2)
+        a >>= 1
+        b >>= 1
+    return count
+
+def sum_different_bits(numbers: List[int]) -> int:
+    total = 0
+    for i in range(len(numbers)):
+        for j in range(i+1, len(numbers)):
+            total += count_different_bits(numbers[i], numbers[j])
+    return total
+
+if __name__ == "__main__":
+    input_list = [2, 3, 4]
+    result = sum_different_bits(input_list)
+    print(result)