suppose if we want to swap 3 and 5 *a=3 *b=5 then, 1st xoring *a and *b and copying back to *a *a=011 *b=101
------------ *a=110 2nd--> *b^=^a ---> *b=101 *a=110 ----------- *b=011 (i.e *a) .....if we implement next step both are swapped! hope its clear! -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.