cleaning up and organizing old problems (builtin)

src/bitwise/swap_in_place.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python
+
+__author__ = "bt3"
+
+'''
+    swapping values in place without extra memory
+'''
+
+
+def swap_bit(a, b):
+    a = a^b
+    b = a^b
+    a = a^b
+    return a, b
+
+
+if __name__ == '__main__':
+    a = 14
+    b = 73
+    a2, b2 = swap_bit(a, b)
+    print "a was {0}, now it is {1}. \nb was {2}, now it is {3}".format(a, a2, b, b2)