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Cod sursa(job #608704)
#include<fstream>
using namespace std;
int n,t;
int main()
{
int i,j,x,sumaxor;
ifstream fin("nim.in");
ofstream fout("nim.out");
fin>>t;
for(i=1;i<=t;i++)
{
fin>>n;
sumaxor=0;
for(j=1;j<=n;j++)
{
fin>>x;
sumaxor=sumaxor^x;
}
if(sumaxor)
fout<<"DA\n";
else
fout<<"NU\n";
}
fin.close();
fout.close();
return 0;
}