Răspuns:
1.
#include <iostream>
#include <fstream>
using namespace std;
int main() {
int a,b,c,d,e;
cin>>a>>b>>c>>d>>e;
ofstream g("fisier.txt");
g<<a+b+c+d+e;
g.close();
return 0;
}
2.
#include <iostream>
using namespace std;
int main() {
int a,b,aux;
cin>>a>>b;
aux=a;
a=b;
b=aux;
cout<<a<<b;
return 0;
}
3.
#include <iostream>
using namespace std;
int main() {
int a,b,n;
cin>>a>>b>>n;
if (a>n && n<b)
cout<<"DA";
else
cout<<"NU";
return 0;
}
Sper ca te-am ajutat. :))))
Explicație: