Solution to Perm-Missing-Elem by codility
Question: http://codility.com/demo/take-sample-test/perm_missing_elem Question Name: PermMissingElem or PermMissingElement The main challenge of this question is the XOR operations: X^X=0, and 0^X=X. Logically, the addition and subtraction operations also are able to do this work. But taking the overflow in computer into … Read More »