Compilare: main.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 1 | #import<fstream> | ^~~~~~ main.cpp:2:69: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] 2 | using namespace std;ifstream fin("nim.in");ofstream fout("nim.out");main(){int t,n,x,a;fin>>t;while(t--){fin>>n;x=0;while(n--)fin>>a,x^=a;if(x)fout<<"DA\n";else fout << "NU\n";}} | ^~~~