1)Write a C++ program that finds and display sum of all array numbers using Pointer.

 #include <iostream>

using namespace std;

int main() {

    // Write C++ code here

    cout << "Pointer and Array program";

int S[]={10,20,-30,40,50};

int *P;

int i,sum=0;

cout<<"\nArray numbers are: ";

for(i=0;i<5;i++)

{

cout<<S[i] << " ";

}

cout<<"\n Sum of all array numbers: ";

P=S;

for(i=1;i<=5;i++)

{

sum=sum+(*P);

P++;

}

cout<<sum;

    return 0;

}

output:

Pointer and Array program

Array numbers are: 10 20 -30 40 50 

 Sum of all array numbers: 90