黑紫邱眺

#include<bits/stdc++.h>
using namespace std;
long long t,n,k,a[100100];
int main(){
    scanf("%lld",&t);
    for(long long i=0;i<t;i++){
        scanf("%lld%lld",&n,&k);
        long long yhh=0;
        for(long long j=0;j<n;i++){
            scanf("%lld",&a[i]);
            yhh^=a[i];
            if(k%2==0 && n%2==0) printf("%lld ",a[i]);
        }
        if(k%2==0 && n%2==0){
            printf("\n");
            continue;
        }
        for(long long j=0;j<n;j++) printf("%lld ",yhh^a[i]);
        printf("\n");
    }
    return 0;
}