2.
#include<bits/stdc++.h>
using namespace std;
int tongmang(int *a, int &n)
{
int total=0;
for (int i = 0; i<n; i++)
{
cout << "a[" << i << "]=";
cin >> *(a + i);
}
for(int i=0;i<n;i++){
total+=a[i];
}
return total;
}
int main()
{
int n;
cin>>n;
int arr[n];
cout<<tongmang(arr,n);
//samon247
return 0;
}
3.
#include<bits/stdc++.h>
using namespace std;
int luythua(int a,int b)
{
int total=1;
for(int i=0;i<b;i++){
total*=a;
}
return total;
}
int main()
{
int a,b,m,n,T=0;
cin>>a>>b>>m>>n;
T=luythua(a,m)+luythua(b,n);
cout<<T;
//samon247
return 0;
}
