Răspuns:
Explicație:
1. #include iostream;
using namespace std;
int a,b,x;
int main()
{ cin>>a>>b>>x;
if(x>=a && x<=b) cout<<"DA";
else cout<<"NU";
return 0;
}
2. #include iostream;
using namespace std;
int a,b;
int main()
{ cin>>a>>b;
if(a*b < 0) cout<<"-";
else cout<<"+";
return 0;
}