Write a program to find sum of first and last element of an array demonstrating use of new and delete operator.
Sep 2, 2019Source code:
//program to find the sum of first and last element of
//an array, using new and delete operators
#include <iostream>
using namespace std;
int main(){
float *aptr, sum;// pointer to allocate memory for an array
int n; // reading size of an array
//read array size
cout<<"Enter the size of an array:";
cin>>n;
aptr = new float[n]; //allocate memory
cout<<"Enter array elements:";
for(int i = 0; i < n; i++){
cin>>*(aptr + i); //reading array elements
}
sum = *(aptr) + *(aptr + n -1);
cout<<"Sum of first and last emem="<<sum<<endl;
return 0;
}
Sample run:
Enter the size of an array:5 Enter array elements:1.1 2.2 3.3 4.4 5.5 Sum of first and last emem=6.6
