Problem 1002 I hate Xor!!!

jxust_tj | 2015-06-13 20:39:28Author
-_-
971651029 | 2015-06-13 20:47:00# 1
me too
Hugh_627 | 2015-06-13 20:52:35# 2
why
BestCoder Contest System 2.0
Copyright © 2014-2024 HDU ACM Team