This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
using namespace std;
#define s second
#define f first
#define pb push_back
#define int long long
int n,t,k;
signed main()
{
string ans="";
cin>>t;
while(t--)
{
cin>>n>>k;
int x;
int s=0;
for(int i=0;i<n;i++)
{
cin>>x;
s+=x;
}
ans+=(s%2)+'0';
}
cout<<ans<<endl;
return 0;
}
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