There is a nonnegative integer sequence a1...n of length n. HazelFan wants to do a type of transformation called prefix-XOR, which means a1...n changes into b1...n, where bi equals to the XOR value of a1,...,ai. He will repeat it for m times, please tell him the final sequence.
问题 J: Just do it
时间限制: 5 Sec 内存限制: 128 MB提交: 25 解决: 18
[提交][状态][讨论版][命题人:]
题目描述
输入描述
The first line contains a positive integer T(1≤T≤5), denoting the number of test cases.
For each test case:
The first line contains two positive integers n,m(1≤n≤2×10^5,1≤m≤10^9).
The second line contains n nonnegative integers a1...n(0≤ai≤2^30−1).
For each test case:
The first line contains two positive integers n,m(1≤n≤2×10^5,1≤m≤10^9).
The second line contains n nonnegative integers a1...n(0≤ai≤2^30−1).
输出描述
For each test case:
A single line contains n nonnegative integers, denoting the final sequence.
A single line contains n nonnegative integers, denoting the final sequence.
样例输入
2
1 1
1
3 3
1 2 3样例输出
1
1 3 1-
Anything about this OnlineJudge, Please Contact Administrator. Click add QQ
OJ system based on HUSTOJ Project , UI based on Twitter Bootstrap
Copyright 2016 ACM算法攻关部
cnt: 44156
关于网站改版